
The Lavatory NorCal rents luxury portable bathroom trailers for weddings, festivals, corporate parties, fundraisers, birthdays and events of every size across Northern California. Everyone who steps inside gets a private room with flushing china toilets, hot and cold running water, real mirrors, soft lighting, heat and air conditioning. We are the #1 event bathroom trailer company in the region and part of the largest fleet in the West, with over 250 units. Call (209) 202-3741 any time, day or night. We can often be there within 1 to 2 hours, with 24/7 immediate dispatch from Napa to San Jose and out to Sacramento.
- A+ BBB rating
- 5-star Google reviews from couples and companies
- Licensed and insured for any venue
- Over 250 units, the largest fleet in the West
- 24/7 dispatch with same-day delivery
Why The Lavatory NorCal Is #1 for Bathroom Trailers at Events, Job Sites and More
Strictly luxury. Never plastic. Every unit we bring to an event is a commercial-grade bathroom on wheels, built to look good in wedding photos and to hold up to a festival crowd, and as a direct fleet we own every one of them, so the team you book with is the team that shows up, levels the trailer and stays on call until the last guest leaves. Our partner companies have handled event and equipment rental since 1989, and those 30+ years taught us how a long reception or a sold-out fair actually plays out from the first guest to the last.
Google, Tesla, Target, Pepsi and Amazon have used our trailers for company events, and the Golden State Warriors and the Oakland A’s have too. We are licensed and insured, A+ rated by the BBB and backed by hundreds of 5-star reviews. Call us with your date and guest count for a same-day quote. Prefer to type? The quote form gets a fast call back from our event team.

“We were at an outdoor wedding in Sonoma, and it was organized so well that every detail was covered. I was most impressed with the restroom trailers, which were very clean, had everything you would expect, and were nicer than the restroom at a high-end restaurant.”
“Absolutely satisfied! We had a corporate event in Mountain View and did not want the usual porta potty scene. We went luxury and I was not disappointed. The unit was well kept, set up on time, and we will be booking again.”
Date set? Call (209) 202-3741 to hold a trailer now, or get an event quote online with the venue, the date and the guest count. Peak wedding weekends book up early, so call soon.
Luxury Restroom Trailers for Weddings, Galas, Festivals and More
A good event bathroom is one nobody talks about except to say it was nice. We bring trailers to vineyard weddings, quinceañeras, backyard birthdays, memorials, black-tie galas, charity runs, county fairs, street festivals, church picnics, tailgates, film premieres, school graduations and holiday parties for tech companies. The setup changes with the crowd, yet the goal never does: short lines, clean rooms and no trips into the house or the winery.
Every size lives under our portable bathroom trailer rentals for Northern California events. Small parties do well with the 2-stall bathroom trailer for backyard parties in the Bay Area. When the list runs past 200, the 5-stall deluxe restroom trailer for wine country weddings is the usual pick. Multi-day festivals and camping weekends may want showers as well, and our mobile shower trailer rentals for Sierra camping weekends and festivals cover that.

Event Restroom Trailer Sizes by Guest Count
Three things set the size of the order, and we ask about each one on the first call: how many guests are coming, how many hours the party runs, and whether there is a bar. A five-hour reception with an open bar needs more stalls than a two-hour lunch with the same head count. Use the table as a starting point, then call and we will check it against your plan.
| Unit | Layout | Guest range |
|---|---|---|
| 2-stall bathroom | 1 women’s room, 1 men’s room with urinal | Up to 150 guests |
| 3-stall bathroom | 2 women’s rooms, 1 men’s room | Mid-size parties on tight lots |
| 5-stall bathroom | 3 women’s stalls, 1 men’s stall plus a urinal | 200 to 500 guests over 5 hours |
| 9-stall bathroom | 5 women’s stalls, 2 men’s stalls plus 2 urinals | 400 to 900 guests over 5 hours |
| 8-stall private bathroom | 8 unisex rooms, each with its own door | Galas and all-gender setups |
| ADA plus 2 bathroom | 1 accessible room plus 2 private rooms | Up to 200 guests |
| ADA plus 6 bathroom | 1 accessible room plus 6 more stalls | Large events that need access |
For crowds past 900, we stage two or more units at different ends of the grounds so nobody walks far. The 9-stall restroom trailer for big Sacramento Valley crowds anchors most fair and festival setups.


Inside Our Deluxe Event Bathroom Trailers
People walk up lit stairs with rails into a room that feels like a nice hotel bath, with one-piece fiberglass walls that wipe clean in seconds. Wood-look floors run the length of the unit. Each vanity holds a stainless steel sink under a big framed mirror with hot and cold water. A digital thermostat keeps the room cool on a 100 degree afternoon in Lodi and warm on a foggy night in Half Moon Bay. Before the doors open we stock premium paper, hand towels, soap and a light fragrance, and on long events we come back to restock.






Wedding Restroom Trailers at NorCal Vineyards and Estates
Weddings are a big part of our calendar. Wine country venues in Napa, Sonoma, Healdsburg and the Livermore Valley, ranch weddings in the Sierra foothills and estate weddings in Woodside, Saratoga and the Santa Cruz Mountains often have one small restroom, a septic system that cannot take 200 guests, or no plumbing at all near the lawn. We set the trailer close to the reception but out of the photos, light the path, and match the drop-off to the venue’s load-in window.
Many couples book the trailer for the whole weekend so it covers the rehearsal dinner, the wedding and the Sunday brunch. We usually deliver the day before and pick up the day after, so nothing happens during your ceremony. If your venue is in wine country, our page on Santa Rosa luxury bathroom trailer rentals covers access roads and vineyard gates.


Festival and Fair Restroom Trailers for Big NorCal Crowds
Big outdoor events are a different job. Summer fair season runs from the county fairgrounds in Santa Rosa, Pleasanton and Chico to the state fair at Cal Expo in Sacramento, and street festivals and food truck nights fill downtown blocks from Berkeley to Midtown Sacramento. For crowds like that we place several units around the grounds, keep them on fair power or our generators, and service them every night after the gates close so the morning crowd walks into clean rooms.
Corporate events are their own kind of busy. Tech companies in Mountain View, Santa Clara and San Jose throw summer picnics and product parties on their own campuses, and nonprofits hold galas at estates in Hillsborough and Atherton. These crowds expect the bathroom to match the event, so we set our units on level ground and keep them spotless all night. City and county event offices can find us on SAM.gov, and we are a direct fleet, not a reseller, which makes the paperwork simple for permitted public events. If your party is in the East Bay, see our Berkeley restroom trailer rentals for street fairs and campus events.

Planning a fair, a festival or a company party? Call (209) 202-3741 or send your event details for a quote, and we will map out where each unit should go.
Typical Setups for Our Special Event Restroom Trailers
These are the event layouts we build most often in the region. Every venue adds its own twist, from a steep gravel drive to a strict noise rule after ten at night. The basics stay put.
A 250 guest vineyard wedding in Napa
The winery’s tasting room has two small restrooms and the reception runs from 4 p.m. to 11 p.m. with a full bar. We set a 5-stall trailer behind a hedge near the dance floor and an ADA plus 2 beside it, both on the winery’s power. The coordinator told us later that not one guest all night had to ask where the restroom was, which she said had never happened at that venue before.
A Saturday street festival in Midtown Sacramento
A neighborhood group closes six blocks for music and food trucks and expects a few thousand people over the day. We stage two 9-stall trailers at opposite ends of the route, run generators, and keep a service crew close by to restock in the afternoon. The organizer said the lines never got longer than a few people.
A company summer party on a Santa Clara campus
A tech company hosts 600 employees and their families on a lawn far from the office building. We place an 8-stall private bathroom where every room is unisex with its own door, plus an ADA plus 2, and run both on building power. The facilities team liked the result enough that they booked the same setup again for the company holiday party that winter.

Event Day Planning: Delivery, Power and Placement for Restroom Trailers
Pick a spot that is close to level, firm enough for a pickup truck, and clear of low branches, since our units stand close to 12 feet tall with the AC on top. Gravel, pavers, asphalt and dry lawn all work. Each trailer needs power on its own circuit, one 20 amp circuit for the 2-stall, 3-stall and 5-stall and two for the 9-stall, within 100 feet. If there is no outlet, we bring a quiet generator and park it away from the tables. Water can come from a garden hose or from the onboard tank. The 2-stall carries 105 gallons of fresh water over a 300 gallon waste tank, while the 5-stall carries 200 gallons of fresh water over a 520 gallon waste tank, which is plenty for most one-day weddings and parties.
Weather matters in Northern California. Coastal venues get wind and fog after sunset, and valley venues can top 100 degrees in July, so we set the thermostat for the day you are having. The National Weather Service forecast office for the Bay Area is a good place to check the forecast a few days out, and we will call you if we see trouble coming.

How Renting an Event Bathroom Trailer Works
- Call us. Ring (209) 202-3741 or send the quote form with your venue, date, guest count and event hours.
- We size it. We pick the right trailer or mix of trailers and send a free quote with no hidden fees.
- We deliver and level it. Our driver arrives in your load-in window, levels the unit, sets the stairs and rails, hooks up power and water, and tests every flush and light.
- We service it. On multi-day events we pump, refill and restock each night so every morning starts fresh.
- We haul it out. After the event we pick it up, usually the next day, and leave the grounds clean.

Accessible Bathroom Trailers So Every Guest Is Covered
Grandparents, guests in wheelchairs and anyone who struggles with stairs need a restroom they can use too. Our ADA plus 2 and ADA plus 6 units have a built-in ramp, a wide door, grab bars and room to turn a wheelchair, following the ADA accessibility guidelines from the U.S. Access Board. Public events and permitted festivals often have to provide one, and private weddings are better with one. See our ADA accessible trailer rentals for NorCal events for floor plans, or call (209) 202-3741 and we will add an accessible unit to your order.

Reviews From Weddings, Parties and Festivals We Served
“I was so glad to find The Lavatory NorCal! We had a party for my husband’s 60th birthday in San Ramon with 100 guests. They gave excellent service and I no longer had to worry about the restrooms. They made everything easy.”
“Before our outdoor wedding near Placerville we worried about only having basic porta potties. The luxury restroom trailer was spotless and looked like a real bathroom. Guests kept talking about how nice it was after the event.”
“The Lavatory NorCal was a godsend for a fundraiser I planned in Palo Alto. It added a classy touch for our guests. Very professional and easy to work with. Highly recommend for all your events.”
“They saved my wedding! We had a remote spot in the hills above Healdsburg with no bathrooms and hated the idea of porta potties. The units were clean and full of plush toilet paper, so we had no smells and no panicked guests.”
“We plan events and depend on The Lavatory NorCal for every restroom need. For our large festival in Sacramento, the 9-stall trailer gave us plenty of room, and the quick setup made our job much easier.”
“Great service! We had a large Scouting event in Marin and needed extra restrooms. People used the trailers more than the restrooms at the site because they were so much nicer. Delivery was great too!”

Looking for a trailer in a certain city? Our event restroom trailer service areas in Northern California list every place we deliver, from Redding down to the South Bay.
Questions About Wedding and Event Restroom Trailer Rentals
How far ahead should I book for a wedding?
For weekends from May through October, booking a few months ahead is smart, since harvest season and fair season fill the calendar. We also handle last-minute calls with same-day delivery when a unit is open.
Can the trailer arrive the day before the event?
Yes. We usually deliver the day before and pick up the day after. If your venue has strict load-in hours, we work inside them, and our driver will call you with an arrival time before heading out.

Will the trailer work on a lawn or a dirt lot?
Usually. Dry lawn, gravel and packed dirt are all fine for our five-star event trailers. After rain we lay plywood under the jacks, and we ask about soft ground before we roll.
How many trailers does a big festival need?
It depends on attendance, hours and the length of the grounds. A 9-stall covers 400 to 900 guests over five hours, so larger crowds get two or more units spread out. We plan it with you on the phone.
Does someone stay with the trailer during the event?
Most events do fine without one, because we stock the unit full before the doors open. For festivals and multi-day events we keep a service crew nearby to restock and pump.
Can you deliver to a venue with a narrow gate or a long driveway?
Often, yes. Send us a photo of the gate and the path, and we will pick a size that fits, like the 2-stall or 3-stall for tight spots.
Call The Lavatory NorCal to Book an Event Bathroom Trailer
Weddings, galas, fairs and every party in between, one call covers it. Call (209) 202-3741 now, day or night, or get a free event quote online. We will hold your date, size the trailers and have them set before the first guest arrives.