How much does a restroom trailer rental cost?
Cost depends on stall count, trip length and finish. A day rental runs from $175 on the low end to $2,500 for a loaded luxury unit, and weekly trailer rentals land anywhere from $150 to $1,650 depending on size. Multi-day events push into the $2,499 to $3,899 range, and weekend bookings for weddings or private parties typically fall between $900 and $3,000. Saint Charles Porta Pros prices by stall count first, then by trip length, then by finish, because those three variables move the number more than anything else. A 2 stall restroom trailer costs less than a 4 stall restroom trailer, and both cost less than an 8 stall restroom trailer built for a crowd. See the restroom trailer rental cost page for a longer breakdown, or check porta potty rental cost if a standard unit fits the budget better than a trailer.
| unit | duration | low | typical | high |
|---|---|---|---|---|
| trailer | day | 175 | 800 | 2500 |
| trailer | week | 150 | 1397 | 1650 |
| trailer | weekend | 900 | 2000 | 3000 |
| trailer | event | 2499 | 3500 | 3899 |
What is included in a mobile restroom trailer rental?
A restroom trailer includes flush toilets, sinks with running water and climate control, unlike a standard porta potty rental or porta john rental. Stall counts run 2, 4 or 8 depending on guest count, and each layout separates men's and women's sides on anything above the 2 stall model. Saint Charles Porta Pros stocks trailers built for weddings, corporate events and construction crews who want something closer to a real bathroom than a box on the ground. Washing facilities inside these units meet the intent of 29 CFR 1910.141(d)(2), which requires soap and towels or a hand drying device, not sanitizer alone. If the event needs a rinse station instead of a full trailer, look at handwashing station rental or portable sink rental. For construction sites running standard units alongside a trailer, construction site services covers the full setup.
Why rent a luxury restroom trailer over a standard unit?
A luxury restroom trailer buys climate control, real flooring and finished stalls, which matters when guests are dressed up or the event runs long. Standard units work fine for a job site or a casual cookout, but a wedding or a corporate function reads differently with a luxury restroom trailer parked out back. Saint Charles Porta Pros also rents a deluxe flushable porta potty as a middle option, priced well under a full trailer but a step up from a bare-bones unit. For events that need a wash-down option too, a shower trailer rental pairs with the restroom trailer on the same delivery. Pick the trailer size by expected headcount rather than budget alone, since running short on stalls mid-event costs more in frustration than the upgrade would have cost up front. The wedding restroom rental and event restroom rental pages both walk through sizing by guest count.
How many stalls does my event need?
Stall count follows headcount and event length more than anything else, and a rough guide sits on the how many porta potties do i need page. A 2 stall unit suits a backyard wedding under roughly 100 guests. A 4 stall trailer covers a mid-size festival or a company picnic. An 8 stall trailer handles a large festival, a marathon finish line or a multi-day fair. For construction crews rather than event guests, OSHA 1926.51(c)(1) sets the ratio at one toilet facility per 20 workers or fewer, with additional seats and urinals added per 40 workers as headcount climbs past that. That standard applies to job sites, not private events, but it is the number crews ask about most. Farms and agricultural operations follow a different rule, OSHA 1928.110, which calls for field sanitation facilities within a quarter mile walk of hand-labor employees. The farm and agricultural restrooms and osha portable toilet requirements pages cover both standards in more depth.
Is a restroom trailer accessible for guests who need it?
Not every trailer layout includes an accessible stall, so ask when booking if the event needs one. ADA Standards section 213.2 requires that where single-user units are clustered, at least 5 percent, and never fewer than one, be accessible, and that rule applies to trailer clusters the same way it applies to standard unit banks. An accessible stall needs a 60 inch turning circle under ADA Standards section 304.3.1, a door opening of at least 32 inches per section 404.2.3, and an approach route at least 36 inches wide per section 403.5.1. Saint Charles Porta Pros also rents standalone ADA accessible porta potty units for sites that need compliant seating without a full trailer. The ADA restroom requirements guide covers reach ranges and operable-part rules like ADA Standards section 309.4, which caps operating force at 5 pounds and bars tight grasping or pinching.
Where can a restroom trailer be placed on site?
Placement depends on ground clearance, hookups and how close the trailer needs to sit to guests or workers. Saint Charles Porta Pros needs roughly 60 feet of straight clearance behind the delivery truck to back a trailer into position, the same clearance a roll-off dumpster rental delivery needs. Ground should be level and firm, similar to the stable, slip-resistant surface called for under ADA Standards section 302.1 for any accessible unit nearby. Placement in the public right of way in Saint Charles needs confirming with the city before delivery day, since we have not verified a specific ordinance for trailer or unit placement on city streets or sidewalks. The porta potty placement guide and porta potty permit requirements pages both cover site prep in more detail, and temporary fence rental is worth adding if the trailer sits in a spot that needs crowd control or a barrier around the generator hookup.
Can I get a restroom trailer delivered fast in Saint Charles?
Yes, and Saint Charles Porta Pros covers Saint Charles and the towns around it on short notice when the calendar allows. St. Peters sits 6.9 miles west, Maryland Heights is 9.4 miles southeast, and Hazelwood is 8.5 miles east, all within normal same-day or next-day delivery range depending on trailer availability. Chesterfield, 17.1 miles south, and Florissant, 13.9 miles east, both fall within our regular service radius too. For a true last-minute need, the emergency porta potty rental page covers rush delivery terms, and emergency septic service handles tank issues on the same timeline. Check service areas for full coverage, or start with porta potty rental in Saint Charles if a standard unit alongside the trailer makes more sense than a second trailer. A request a quote call usually confirms availability within the hour.
How much does a 2 station restroom trailer rental cost?
A 2 stall trailer runs $150 to $1,650 for a week and $175 to $2,500 for a single day, with finish level driving most of the spread. Luxury finishes sit at the top of that range. Ask Saint Charles Porta Pros for a quote based on your date and guest count.
What is the difference between a restroom trailer and a portable restroom?
A restroom trailer has flush toilets, running water and climate control inside a towed unit. A portable restroom rental is a standalone unit with a 60 to 70 gallon holding tank and no plumbing hookup. Trailers cost more but feel closer to indoor plumbing.
Do restroom trailers need a water and power hookup?
Most trailers run on a built-in freshwater tank and generator, so a hookup is not required. OSHA 1926.51(a)(1) requires an adequate supply of potable water at any workplace, which the trailer's onboard tank satisfies without a site connection. Confirm generator noise limits with venue staff before the event.
How often is a restroom trailer serviced during a multi-day event?
Service follows a per-week baseline under ANSI/PSAI Z4.3, roughly one visit per week for lighter use, but multi-day festivals usually need daily service. Saint Charles Porta Pros schedules service around guest count and trailer size rather than a fixed interval alone.
Can a restroom trailer work for a construction site instead of standard units?
Yes, though most crews mix a trailer with standard units to meet OSHA 1926.51(c)(1) ratios cheaply. A trailer adds comfort for supervisors or long shifts, while standard units cover the bulk of the crew. See home renovation porta potty for smaller residential jobs.
Does Saint Charles Porta Pros deliver restroom trailers for weddings and festivals?
Yes, including wedding restroom rental, festival restroom rental and county fair restrooms bookings. Luxury and standard finishes are both available, and delivery timing depends on event date and trailer size. Book early for peak wedding season weekends.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.