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Ontario, California · the western Inland Empire

Book Multi-Station Shower Trailer Rentals Anywhere in Ontario

Private 8-station shower trailer rental parked in Ontario, CA

The Lavatory is the go-to deluxe shower trailer company in Ontario, California, with units staged close to where the 10, the 15 and the 60 meet. Your trailer arrives clean, leveled and ready to use the same day it lands, with genuine hot water in every private locking room. Warehouse pads off Milliken Avenue, night work on the cargo ramps at Ontario International, basecamps on Euclid Avenue, ball field weekends off Riverside Drive. Call us now or request a quote and we will confirm your dates today. Every model listed here also goes out for private shower trailer rentals in Corona.

Or call (866) 509-6846 for Ontario availability.

What The Lavatory brings to an Ontario camp: hot-water shower trailers that work

Private hot showers for crews, camps, productions and emergency response.

Over 250 units staged across the Western states
Hot and cold water in every private shower room
Air conditioning and heat in every trailer
We own every trailer, no broker, no ghost company
Licensed and insured on every job
Runs self-contained where there is no hookup

Call (866) 509-6846 or request a quote and we will size the trailer to your Ontario dates.

Why choose The Lavatory

The Lavatory is the go-to name for deluxe shower trailers in Ontario, California

We have staged hot-water units in this city for eight years, out of a local yard, with drivers who know which gate at Ontario International needs an escort and which Ontario Ranch pads a 35 foot rig can turn on. The fleet is ours. More than 250 units, owned outright, the largest luxury trailer fleet in the Western U.S., which is why a Tuesday call about a Wednesday delivery gets a yes or a no instead of a callback. We are licensed and insured, SAM.gov registered, and part of an A plus BBB rated network with a 99.9 percent incident free record. The same dispatch desk handles shower trailer rentals throughout California, so a job that grows from one Ontario pad to four regional sites does not need a second vendor. Call the dispatch line or send a quote request with your dates and head count.

We answer for our own equipment

The 250 plus units are ours, bought and maintained by us. No broker sits between your date and the answer. If something goes sideways at 11:00 p.m. on a Saturday, the person who picks up can actually send a truck.

A door that locks, every time

Each shower is its own room with its own hot and cold controls and a latch on the inside. Gel-coated fiberglass surfaces wipe down instead of soaking up a work week. People use it more because it does not feel like a compromise.

The service schedule is built around your shift

We set pump and restock timing against how your crew actually works, not around a route that suits us. Night sort at the airport gets a morning service. A framing crew on a 6:00 a.m. start does not.

We plan for badged and gated sites before the truck leaves

Ontario has more secured ground than most cities its size, between the airport, the cargo campuses and the arena district. We confirm the escort contact, the gate and the service window at booking, so a driver is never parked outside a fence waiting on a phone call.

Vicki L.location coordinator, film basecamp
★★★★★
“Our driver asked where camera was pointed before he set the tongue, which I have literally never had happen. Quiet unit, clean rooms, serviced outside our shoot hours.”
Annette L.site superintendent, south Ontario tract
★★★★★
“Sixteen weeks on raw pads and I never had to think about it once after week one. They set the pump days against my framing schedule and then just showed up. Moving the unit twice as we walked north was handled the same day I asked.”
Cody H.night ramp supervisor, cargo side
★★★★★
“Escort was arranged before the truck left their yard, so nobody sat at the gate. That alone was worth it.”
From the yard

Proof from the outreach programs we have served with multi-station shower trailers in Ontario

The companies that could rent anything still call us, because a bad shower at a base camp or a film set becomes the story of the whole job. The Lavatory has provided trailers for names like Google, Tesla, BMW, Mercedes, eBay, and Target, for hospitality at Caesars Palace, and for pro sports including the Golden State Warriors, Oakland A’s, and Las Vegas Raiders.

The reason those bookings repeat is simple. A hot shower at the end of a long day is the one thing a crew remembers about the camp. A fire agency near Ontario once called on a Thursday because the unit another company promised for a weekend base camp fell through, and we had a fully stocked trailer set and heated with hours to spare. A production running a long shoot outside town needed showers that held up day after day for cast and crew, and the same trailer stayed spotless through the whole schedule because our team serviced it. That standard travels to every Ontario booking, from a two-week jobsite to a festival campground. Crews ask us a lot about laundry myths worth ignoring, so we wrote a post.

Three decades in event and equipment rental, running the largest luxury trailer fleet in the Western U.S. Every unit ours, never a broker’s.

Inside the trailer

Hot-water temporary shower trailers for Ontario airport and warehouse crews

In Ontario the 8-Station is the unit we lead with, because a 250,000 square foot distribution building and a graded tract in Ontario Ranch both put more bodies on one pad than a small box can clear. When a job is tighter, like a downtown Euclid Avenue lot or a single ramp position at the airport, we bring the 11 foot combo instead and keep the footprint honest.

A private shower trailer parked on the edge of a lit cargo ramp at night, a widebody freighter and ground equipment in the background, crew in high visibility vests walking toward it

Ontario International sits on 1,741 acres with two parallel runways, 12,197 feet and 10,200 feet, and about 90 departures and arrivals a day. The freight side never really stops. UPS grew its building here by roughly 15 percent to nearly 900,000 square feet, and Amazon’s 251,000 square foot sort facility moves up to 12,000 packages an hour across 9 gates and 18 truck docks. When a contractor takes a taxiway or a cargo apron, that crew works the window between the last arrival and the first departure. Nobody walks into a terminal at 3:00 a.m. to clean up.

Airside placement has its own rules and we plan for them before the truck leaves. A badged escort, a setback clear of the movement area, and a service window agreed with the ramp lead instead of assumed. We ask for the escort contact by name at booking, because the most common delay on airport work is a driver sitting at a gate with nobody cleared to bring him in.

What you find inside the trailer

Private rooms with a lockable door

Every shower is its own room with a door that locks, a bench and a hook, so a crew or a camp showers with real privacy instead of a curtain in a row.

Hot and cold water controls

A water heater and onboard tanks feed hot and cold controls in each room, with 1.5 GPM shower heads so the hot water lasts through a full shift of people.

Air conditioning and heat

Climate control in every trailer, so a shower in a July heat wave or a January storm response feels like the one at home.

One-piece gel-coated fiberglass

Walls, ceiling and floor are one molded fiberglass surface with no seams, which is why the rooms clean fast, stay clean and never smell like a locker room.

Runs with or without hookups

Fresh and waste tanks on board, a generator when the site has no power, and the option to tie into on-site septic on a long deployment.

Serviced, stocked and pumped

We deliver the trailer stocked and come back to pump, restock and clean on longer jobs, so day twelve looks like day one.

Off the field, the warehouse districts carry the same load in daylight. Milliken Industrial Park, Haven Gateway Centre, Meredith International Center and the newer Colony Commerce Center buildings south of the 60 all run big trade counts during shell and tenant improvement work. South Coast AQMD Rule 2305 covers warehouses over 100,000 square feet, and the charging and solar retrofits it pushes are month long jobs on sites already running two shifts. Those crews cannot tie into a building that is operating.

We deliver this same setup up the 15 for Rancho Cucamonga shower trailer rentals and west into Chino and Montclair, so a contractor holding three Inland Empire sites works one account and one service schedule. Ask for the daily servicing option on any job over two weeks. Call or send a quote request with your shift pattern and we will build the pump and refill schedule around it instead of around our route.

Full specifications for every unit are on the 8-Station spec page and its four sister pages, or call and we will spec it to your Ontario head count.

The full shower trailer fleet is one page over; below is how we size a unit to a California job.

Right now

Sizing crew shower trailers to an Ontario head count

Five shower units cover everything from a single ADA-compliant room to a camp that showers two hundred people a day. Every one has hot water, private rooms and climate control. Tell us the head count, how long the job runs and what the site has for water and power, and we will size it.

8-Station Private Shower Trailer, delivered to sites from Ontario to Chino

8-Station Private Shower Trailer

Eight completely private shower rooms in a 29-foot box, built for crews, camps and relief sites of up to about 200 people a day. Hot and cold controls, 200-gallon fresh and 950-gallon waste tanks, an exterior four-sink hand wash bank under the roof line, and it can tie into on-site septic for long deployments. CAL FIRE approved for wildfire camp service, the spec incident teams ask for in every western state.

ADA + 2 Private Shower Trailer for rent near Montclair and Ontario

ADA + 2 Private Shower Trailer

Two standard private shower rooms plus one ADA room with a self-contained ramp, built to federal and California ADA requirements. The right unit when a site needs accessibility without giving up capacity, with 210 gallons of fresh water on board.

4-Station Shower, Restroom and Laundry Combo available for film and production around Ontario

4-Station Shower, Restroom and Laundry Combo

Four private bathrooms, each with a toilet, sink, shower and power outlet, plus a washer and dryer in a separate room. A self-contained hygiene block for a crew of up to about 30 on a remote or long-term job.

2-Station Shower and Restroom Combo staged for the western Inland Empire jobs

2-Station Shower and Restroom Combo

Two private bathrooms with a toilet, sink and shower each, in a compact 11-foot box. The pick for a small crew, a ranch job or a production base that needs both functions in one footprint.

Single-Station ADA Shower and Restroom Combo, delivered to sites from Ontario to Montclair

Single-Station ADA Shower and Restroom Combo

One fully accessible room: ADA china toilet with grab bars, roll-in shower with a seat and hand wand, ADA-height sink and vanity, and a ramp that deploys in minutes. It pairs with any other unit so every person on site is covered.

Bigger jobs run several trailers side by side, and long deployments get a service schedule instead of a one-time drop. If you are between sizes, we spec it to the head count rather than nudge you into more trailer than the job calls for.

The same fleet covers shower trailer delivery across California, matched to crew size and duration.

Mobile shower trailers for film and TV basecamps in Ontario

A mobile shower trailer parked behind a film basecamp on a wide tree lined avenue with a grassy median, production trucks and pop up tents nearby, early morning light

Ontario runs its own film office, and the city publishes the locations it sees used most: Historic Euclid Avenue, Ontario International Airport, Toyota Arena, the Ontario Convention Center, ONT Field, the R. Jack Mercer Community Bandstand at Euclid and C Street, and Ontario Town Square. Euclid draws period work, because Chaffey laid it out in the 1880s with wide lanes and a grassy median and it still photographs like a main street that never got widened.

Production here is a permit calendar, not a phone call. The city wants every document ten business days before the first prep day, weekends and holidays not counted, and anything involving street closures, stunts or pyrotechnics has to be approved before that deadline so it can ride along with the film permit. Water based smoke is named on the effects application. Insurance is the piece the city itself flags as the one to start earliest. If a unit sits in the public right of way rather than a private lot, that is an encroachment permit, and it belongs to the production.

What a basecamp needs from us is quiet and clean. A unit that is not humming through a take, rooms that hold up after a long day in valley heat, and a driver who asks where camera is pointed before he sets the tongue. We stage where the honeywagons and crew parking already are and service outside shooting hours. On a night shoot that means a morning service.

Commercial and still work moves faster than features here, and it often books a single 11 foot combo instead of an eight room unit. Either way we would rather hear from you at scout than at tech. Give us a call with the location and the shoot dates, or send a quote request, and we will tell you straight whether the spot you picked will take a trailer.

What we bring

Four steps to a portable shower trailer on an Ontario site

Booking should be the easy part of running a site. Four steps, a straight answer, and one team that owns the whole thing.

1

Tell us about the site

Share the dates, a rough head count and where the trailer will sit. That is enough for us to point you to the right unit and count.

2

We match the trailer and the hookups

We confirm whether the site has water and power or needs a generator and a supply, and pin the exact spot so delivery is one clean trip.

3

Delivery and setup

We arrive on your schedule, level and set the trailer, connect it, heat the water and stock every room so it is ready before the first shift ends.

4

Use it, we handle service and pickup

The trailer holds up through the whole deployment while our line stays open. When you are done, we come back and take it away.

More Ontario jobs we bring crew shower trailers to

This is a freight town with a ball park in it now. Ontario International Airport moved 835,129 tons of cargo in 2025 and ranks eighth in the country for freight, UPS runs its West Coast air and truck hub here, and Amazon Air works a 51 acre sort facility on the field. South of the 60, the Ontario Ranch build-out and the 200 acre Ontario Sports Empire turned old dairy ground into the busiest construction floor in San Bernardino County.

Outreach days on the Fourth Street corridor in Ontario

Outreach days on the Fourth Street corridor

Mobile hygiene works best on a fixed weekday window at a paved site people already know. We set a supervised entry and exit flow and run on generator power when there is no panel. On the 8-Station, the exterior four sink hand wash bank lets people clean up without taking a shower room, which roughly doubles what a short window can serve.

Weeks when the city opens cooling centers in Ontario

Weeks when the city opens cooling centers

Ontario activates its cooling centers when the forecast hits 100 degrees for two or more hours in a two day stretch. That is also the week outdoor crews start asking about showers. We keep units held back in summer for exactly this, and our dispatch desk answers around the clock.

Freight and hazmat incidents on the 10, 15 and 60 in Ontario

Freight and hazmat incidents on the 10, 15 and 60

The city’s own hazard plan lists hazardous materials release and transportation incidents near the top, which is what you get when four freeways carry tanker and mixed freight through 50 square miles. Decon support needs hot water on site fast, and we can be rolling while the call is still open.

Festival Hispano, the Light Parade and arts weekends in Ontario

Festival Hispano, the Light Parade and arts weekends

The city runs real crowds through Ontario Town Square and the Euclid corridor, from Festival Hispano in September to the Holiday Light Parade in December. Vendor and production staff working a multi day build need somewhere to clean up that is not a portable restroom.

Agency field work and SAM.gov contracts in Ontario

Agency field work and SAM.gov contracts

We are SAM.gov registered, licensed and insured, and we move paperwork at the pace agency contracting actually runs. Accessible rooms and an ADA ramp come on the same order, not as a special request.

What ties these together is that a hot shower changes how a long day ends. Because our units sit staged across the region instead of a couple of states away, getting a shower trailer to an Ontario site, even on a short-notice call, is an ordinary ask here, not a scramble.

Day one

Placement, permits and ADA for portable shower trailers in Ontario

Temporary site uses in Ontario go through the Planning Department as a Temporary Use Permit, filed under Administrative Applications, and every planning submittal and fee moves through the city’s Accela Citizen Access portal or in person at City Hall on East B Street. The city has posted a fraud alert about this: it never requests permit payment by email or wire transfer. If any part of your setup sits in the public right of way, that is a separate Encroachment Permit application. Commercial filming needs its own permit ten business days ahead, on public or private ground alike.

Waste is the part people underestimate. Ontario Municipal Utilities Company handles wastewater collection citywide from its yard on South Bon View Avenue, and anything pumped out of a self-contained unit goes to an approved disposal point through a licensed hauler. Never a storm drain. We handle that end ourselves and keep the disposal trail on our side of the job, which is one less item on a superintendent’s compliance list. On a long deployment we would rather tie into sewer where the site allows, and the 8-Station is built for that.

On the crew side, California’s outdoor heat standard in Title 8 Section 3395 shapes summer planning here. Shade has to be present above 80 degrees, high heat procedures start at 95, and every worker gets one quart of cool drinking water per hour for the whole shift, free. Employers also keep a written heat illness prevention plan and train on it. A shower at the end of a 100 degree shift is not part of that standard, but it is part of how the better contractors here keep people coming back. Our ADA accessible shower trailer rentals cover the accommodation side of the same plan.

Private shower trailer set up near Montclair for ground-up construction

What the ADA unit and the site access plan include

  • ADA-compliant shower units with a ramp, roll-in shower, seat, hand wand, grab bars and an ADA-height sink.
  • Guidance on where to place the trailer so it is easy to reach, easy to service and level.
  • Water and power sorted before delivery, with a generator and a water supply staged when the site has neither.
  • Licensed and insured on every unit we put on the road.

One thing we always say plainly: some sites, agencies and city permits have their own rules on placement, accessibility, greywater and temporary hygiene facilities. Tell us the site and we will help you plan around them, but confirm any permit requirements with the property or the agency as well.

Short version

What one shift without a mobile shower unit costs work crews in Ontario

Shower trailer on a cargo and distribution job, the western Inland Empire

Think about what an Ontario deployment actually costs to run. Wages, lodging, fuel, the schedule pressure, the people you are asking to work long days away from home. Then picture the end of that shift with nowhere to get clean. A shower is the one thing every person on site uses, and it is the detail they quietly judge the whole camp by.

A private shower trailer protects everything else you are spending. Crews sleep better and stay on the job, a production keeps cast and crew comfortable through a long schedule, and a relief site gives people back a piece of normal. Set against the cost of the deployment, it is a small line item that carries a lot of the morale, which is why the managers who have run a camp without one book the trailer first the next time.

Nothing fancy

Delivery, setup and service for mobile shower units across Ontario

Delivery and service visit on the western Inland Empire shower trailer job

We handle the whole thing, not just the drop-off. Our team delivers the trailer, levels and sets it, connects water and power or stages a generator and a water supply, fires the heater and stocks every room before the first person needs it. When the job wraps, we come back and haul it away.

On longer or higher-traffic bookings in Ontario, we pump and restock on a schedule, and an on-site attendant is available for camps and productions where the trailer runs all day. That always-clean standard is the difference between a shower people use once and one they are glad to use every night of the job.

The morning after

Where our self-contained shower units have worked near Ontario

Actual Lavatory shower units on actual jobs. Base camps, jobsites, race weekends, productions and the relief sites where the trailer has to run for weeks.

Private shower trailers for Ontario Ranch build sites and Sports Empire work

A deluxe shower trailer set on a graded dirt pad in a new tract subdivision at golden hour, framed houses and a crane in the background, distant mountains

Ontario Ranch is the old New Model Colony, rezoned in 1999 and still filling in. Thousands of acres of graded pads with temporary power, no permanent water and no sewer, spread across named villages like Edenglen, Esperanza, Countryside, Creekside, Rich-Haven and Subarea 29. Some parcels are still under Williamson Act contracts, which is why you can stand on a framed tract and look across a fence at row crops.

Then there is the Ontario Sports Empire. Two hundred acres near Riverside Drive and Vineyard Avenue, built on 112 acres the City Council bought for 172 million in March 2023. ONT Field opened March 21, 2026, a 100 million dollar Populous design seating 6,500, and it took the 2026 BaseballParks.com Ballpark of the Year award in its first season. The community complex wrapping it, eight diamonds and eight full size soccer fields, opens October 2026.

Greenfield work is where a self-contained unit earns its keep. We haul fresh water in, pump waste on a schedule, and run off a temporary panel or a generator, so the shower does not wait on the utility connection the way the trailers and the offices do. On a long tract job we set the service cadence against the framing schedule in week one and then leave it alone. Superintendents here tell us the thing they actually want is a unit that never becomes a line item on the morning huddle.

Placement takes a minute of thought on a fresh pad. Firm ground, a truck approach that does not cross a green slab, and room for a 35 foot rig to swing without cutting into fresh curb. We would rather walk the pad with you on delivery day than fix it later. Call before the pad is poured if you can, or send the quote request with a site plan attached and we will mark a spot on it.

Bottom line

Notes from productions we served with shower trailers around Ontario

Lavatory unit between deployments outside Ontario

Taxiway rehab crew, airport south side

A paving contractor had a six week night window and a crew of 55 working between the last arrival and the first departure. We put an 8-Station on the ramp edge with a badged escort arranged at booking and serviced it at 10:00 a.m. daily, outside the work window entirely. The four sink hand wash bank on that 8-Station took most of the quick cleanups, which kept the rooms free for the crew coming off the asphalt.

Grading superintendent, Ontario Ranch tract

Sixteen weeks on raw pads with a temporary panel and no sewer within reach. We ran fully self-contained, hauled fresh water twice a week and pumped Mondays and Thursdays, then moved the unit twice as the work walked north. The only change he asked for all season was shifting the pump day off Monday after a holiday week.

Outreach coordinator, downtown service program

A weekly hygiene window at a paved site near the Euclid corridor, Wednesdays, four hours. We placed for shade and a one way entry and exit flow, ran on a generator, and set attendant staffing so nobody had to manage a line. Attendance roughly doubled by the fourth week once word got around that the same unit showed up at the same hour.

Shower trailer delivery across Ontario neighborhoods and nearby cities

The western Inland Empire corridors we cover with shower trailers

We cover all 50 square miles of the city, from the Euclid Avenue corridor and the airport campuses down through Ontario Ranch to the Riverside Drive ball fields, and out into Chino, Montclair, Rancho Cucamonga and Upland. Our service area reaches every state, but this page is a local hub with units staged nearby, which is what lets a same day call end with a truck instead of a timeline. Call with an address and we will give you the delivery window before you fill out a quote request.

We cover Ontario shower trailer rentals across California. Towns and job corridors we serve include Downtown Ontario, Historic Euclid Avenue, Ontario Center, Piemonte, Ontario Mills, Guasti, Airport Center, Meredith International Center, Milliken Industrial Park, Haven Gateway Centre, California Commerce Center, Centrelake Business Park, Ontario Ranch, Edenglen, Esperanza, Countryside, Creekside, Rich-Haven, Subarea 29, Grand Park, Chino, Montclair, Rancho Cucamonga, Upland.

Jobs outside town are covered too; the California shower trailer coverage map shows every corridor.

Chino, California

Chino

South and west across the old agricultural preserve, with dairy conversion land, the Chino Valley industrial corridor and a lot of the same tract builders working Ontario Ranch. We cover it on the same route, which keeps service days consistent across both sites.

Montclair, California

Montclair

Straight west on Holt and Mission, anchored by Montclair Place and the transit center redevelopment. Lots here are older and tighter, so we bring the 11 foot combo more often than the eight room unit.

Rancho Cucamonga, California

Rancho Cucamonga

Northeast up the 15, home to the Chaffey College main campus and a heavy distribution corridor along Fourth Street and Milliken. Crews working both cities in one week get a single account and one service schedule.

Upland, California

Upland

Due north up Euclid, where the avenue keeps its wide median and the ground starts climbing toward the foothills. Jobs up here run a little cooler in summer and a little colder on winter mornings, which changes how we manage lines overnight.

Ontario Ranch Business Park, California

Ontario Ranch Business Park

New industrial ground south of the 60, built out alongside the residential villages. Shell and tenant improvement work here often overlaps with tract construction on the next parcel, so we stage more than one unit on a lot of these jobs.

Colony Commerce Center, California

Colony Commerce Center

The east and west campuses hold some of the largest new buildings in San Bernardino County. Charging and solar retrofits driven by warehouse air rules keep crews on these sites for months at a stretch, long after the shell is finished.

Planned rentals are usually scheduled the same week, and we do our best to cover last-minute Ontario dates when a trailer is nearby.

Reviews of our shower trailer rentals in Ontario, California

Gabrielle L.safety manager, distribution center off Milliken
★★★★★
“We had shade and water dialed in and nothing for washing up. Adding showers changed the mood on the floor inside two weeks. Restocking happened without me chasing anyone, which is not how our other rentals go.”
✓ Verified booking
Joe C.tournament director, youth baseball
★★★★★
“Four fields, two days, and the line never backed up past a couple of kids.”
✓ Verified booking
Logan G.outreach coordinator, downtown service program
★★★★★
“Same unit, same hour, every Wednesday. That consistency is the whole thing in this work. By the fourth week we were serving roughly double what we started with, and the hand wash bank on the 8-Station meant people could clean up quick without holding a room.”
✓ Verified booking
Noah E.HR manager, cold chain warehouse
★★★★★
“August was brutal and people were driving home filthy. Having private rooms with real hot water on site is the first thing our staff mentioned in the fall survey.”
✓ Verified booking
Silvia M.battalion chief, mutual aid staging
★★★★★
“Called it in late and the unit was on the lot before the first rotation came off. Eight rooms moved a lot of people fast. No drama.”
✓ Verified booking
Adriana M.office manager, grading contractor
★★★★★
“I handle the paperwork side and this was the easy one. Insurance certificate came back same day with the endorsements our GC wanted. Billing matched the quote exactly. I have spent whole afternoons fixing that with other vendors.”
✓ Verified booking
In real terms

Before you book private shower trailers in Ontario

8-station shower unit on the western Inland Empire site
How many shower stations do I need for a crew of 60 on an Ontario warehouse pad?

One 8-Station Private Shower Trailer covers a crew that size comfortably. Eight private rooms with 1.5 GPM metered heads will move about 200 people across a normal day, so 60 is well inside the envelope even if everyone releases at once. The real constraint is turnover, not room count. If your crew comes off the floor in one wave at shift change, plan on roughly 15 minutes per room per rotation and you will see the whole group through in about half an hour.

Do your units need a water and sewer hookup, or can they run self-contained?

They work either way, and in Ontario Ranch most of ours are fully self-contained because permanent utilities show up late on a greenfield tract. The 8-Station carries 200 gallons of fresh water and 950 gallons of waste, so we haul in and pump out on a set schedule. Where a site has a sewer or septic connection available and the job is running long, we prefer to tie in, because it cuts the pump frequency and your cost drivers with it.

How often does a unit get serviced on a long Ontario construction job?

We build the cadence around your shift pattern in the first week, then hold it. On a typical multi month tract or warehouse job that means restocking and cleaning daily, with waste pumped two or three times a week and fresh water topped off alongside it. Summer usually moves faster than the schedule suggests because people shower more above 100 degrees. If we see the waste side filling early we add a pump day rather than wait for you to call.

Are your shower trailers ADA compliant?

Yes. The ADA plus 2 Private Shower Trailer gives you two standard rooms plus one accessible room with a self-contained ramp, and it meets federal ADA requirements as well as California’s own access code. There is also a Single-Station ADA Shower and Restroom Combo with an ADA china toilet and grab bars, plus a roll in shower with a seat and a wand. Put the accessible unit on the quote from the start and it arrives on the same delivery.

Can a unit handle 100 degree days in the Inland Empire?

It is built for it. Every unit has air conditioning and heat on a smart thermostat, and the gel-coated interior does not hold heat the way a plastic enclosure does. What we adjust in Ontario summers is the service side. Above 100 degrees crews shower more and the waste tank fills sooner, so we move the pump day up instead of letting a unit go out of service mid shift. The city opens cooling centers when the forecast hits 100 for two or more hours in a two day window, and that is usually the week our summer calls spike.

Do I need a permit to put a temporary shower trailer on a job site in Ontario?

It depends on where it sits. On private property as part of an active construction project it is generally covered by the project entitlements and the Standard Conditions of Approval, though a Temporary Use Permit through the Planning Department applies to some temporary uses. If any part of the setup occupies the public right of way, you need an Encroachment Permit from the city. Commercial filming is its own track with a ten business day submittal. We can tell you which bucket your site falls into on the quote call.

Where does the waste water actually go?

Into an approved disposal point through a licensed hauler, and we handle that end. Nothing goes to a storm drain, a gutter or a landscape area. Ontario Municipal Utilities Company runs wastewater collection for the city out of its South Bon View Avenue facility, and where a site has a legal sewer connection and the job justifies it, we would rather tie in than haul. Either way the disposal trail stays on our side of the contract.

How fast can you deliver for an emergency or a disaster response?

Our dispatch desk is staffed around the clock and we hold units back for exactly this. Because we own the fleet outright rather than brokering it, an after hours call does not turn into a search. Ontario’s own hazard plan puts hazardous materials release and transportation incidents near the top of its list, which is what four freeways and an air cargo hub produce, so a lot of our emergency calls here are decon support rather than wildfire camps.

Can you deliver to a secured area at Ontario International Airport?

Yes, and we plan the access before the truck leaves. We confirm the badged escort contact by name, the gate, the setback from the movement area, and the service window with the ramp lead at booking. The most common delay on airside work is a driver parked outside a fence with nobody cleared to bring him in, and it is entirely avoidable. Give us the escort contact when you request the quote.

What power do you need, and can I run it off a generator?

The 8-Station draws from one 50 amp 220 volt circuit. The ADA plus 2 and the smaller combos use two 120 volt 20 amp circuits each. A generator is fine and it is what we use on most Ontario Ranch pads and outreach sites. Tell us what is on the pad, temporary panel or generator, and we will confirm the unit matches before delivery rather than after.

What happens during a Santa Ana wind event?

We orient the long wall out of the prevailing push, chock the unit, and leave awnings stowed until it passes. That matters most on open ground in Ontario Ranch where nothing is built around the pad yet. Gusts in the January 2025 event reached 100 miles an hour at Mount Lukens with 50 to 80 forecast across the valleys, and a 29 foot box with a tall flat side catches all of it. If a site is genuinely exposed we will tell you and suggest a different spot.

Shower trailer planning guides for Ontario, California

Field photo from a shower trailer job outside Ontario

Crews working in Ontario often pair showers with the rest of what a site needs, so here is what else we stage nearby.

Sizing a shower trailer for an Ontario warehouse crew

Sizing gets guessed at more than almost anything else on a rental order, and the guess is usually wrong in the same direction. People count heads and divide. That works for portable restrooms. It does not work for showers, because a shower is a timed event and a restroom is not. The question is never how many people you have. It is how many of them want to be clean inside the same twenty minute window.

Start with your release pattern. A distribution center doing a tenant improvement while the building operates has trades coming off in ones and twos across a whole afternoon. That crew can share fewer rooms than its head count suggests. A shell crew that stops at 3:00 p.m. and walks to the parking lot together is the opposite. Everybody hits the unit at once, and room count is the only thing that keeps the line short.

What to have ready before a temporary shower trailer lands on an Ontario Ranch pad

Greenfield delivery goes wrong in predictable ways, and almost all of them are solved the day before rather than the day of. Ontario Ranch is the hardest ground in the city for this, because a tract at the pad stage has no curb, no permanent water, no sewer and sometimes no street name on a map yet. Here is the short list we walk with superintendents.

First, the approach. A 29 foot box is 35 feet with the tongue, and the truck pulling it needs a straight run in and a way back out that does not cross fresh concrete or a green slab. We have watched a perfectly good placement get abandoned because the only exit was over a curb that got poured on Tuesday. Walk the route with a tape if the pad is tight, or send us a site plan and we will mark it.

How to plan shower trailer support for an Ontario tournament weekend

The south end of Ontario is about to host a lot of youth and travel sport. The community complex at the Ontario Sports Empire opens in October 2026 with eight baseball and softball diamonds, two of them championship fields, eight full size soccer fields, and multi use fields for flag football. That is a tournament footprint, and tournament footprints have hygiene problems that single game venues do not.

the practical result is dwell time. A travel team arrives Friday afternoon and leaves Sunday night. Players are on site from early morning through late evening across three days, often in valley heat, and the venue restrooms are built for a two hour crowd rather than a three day one. Coaches and parents notice this by Saturday afternoon and there is nothing anyone can do about it by then.

City of Ontario cooling center locations and heat activation policy

Film basecamp shower trailers and the Ontario permit calendar

Ontario is an easier film town than most people expect, and it is a stricter one on paperwork. The city requires a film permit for any commercial film activity inside city limits, on public or private property, and it defines that broadly enough to include still photography. If you are shooting anything commercial here, you are permitting it.

The number that drives everything is ten business days. All documents are due ten business days before the first prep or shoot day, and weekends and holidays do not count toward that. Plan backward from your first prep day and you will find that a shoot three calendar weeks out is already tight once a holiday lands in the middle. This is the reason basecamp support books earlier here than it does on an emergency job.

City of Ontario film permit requirements and forms

Reserve a deluxe shower trailer for your Ontario job

Tell us the address, the dates and roughly how many people, and we will tell you which unit fits and when it can be there. Call the dispatch line any hour, or send a quote request and we will come back to you the same day. See also: restroom trailer rentals in Ontario.

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