Porta Potty Rental in Ontario, CA
Ontario is an incorporated city in San Bernardino County, California, and we take portable toilet rental calls for any address in it. Call (888) 417-6737, answered 24/7, and we connect you with a provider that serves the site. Dry ground is typical, with about 9 inches of precipitation a year (NOAA normals), so ask for units to be staked on windy, open sites.
Updated 2026-10-13
- 1Call with the site address, dates and headcount.
- 2We connect you with a provider that serves the site.
- 3The provider confirms units, price, delivery, servicing and pickup.
Ontario at a Glance
Climate figures: NOAA 1991–2020 normals from the Riverside Muni Ap, CA station, about 11 miles away.
Planning Around the Weather
DOE's Building America map puts San Bernardino County in the Hot-Dry climate region (IECC 2021 zone 3B, PNNL county guide). This region combines hot summers with low humidity: sun, dust and water supply are the usual planning issues, more than rain. Freezing nights are rare, about 4 a year, so water-carrying units can usually run through the winter.
Dry, Windy Sites
Only about 9 inches of precipitation falls in an average year, in the driest tenth of U.S. places in our data. Dry ground usually holds a truck and a wheelchair well, but open, dry sites can get windy and dusty: ask for units to be staked or tied down on exposed ground.
Heat
About 101 days a year reach 90°F or more, more than three in four U.S. places in our data, so heat is the normal condition for months at a time. About 22 days a year go past 100°F. On sunny, dry sites, place units in shade where the site allows. For rentals longer than a day in the warm months, set servicing by the heat rather than the calendar, shade the units, and add hand-wash stations.
Job Sites and Home Projects
New Housing
About 14.3% of Ontario's housing units were built in 2010 or later (ACS 2020–2024), above the U.S. share of 11.4% and higher than three in four U.S. places in our data: newer construction sits alongside older stock, so job sites range from new homes to additions and repairs. About 4.5% were built in 2020 or later, in the top tenth of U.S. places in our data.
Homes From the 1970s and 1980s
The median year built for Ontario's housing is 1980 (ACS 2020–2024), newer than most U.S. places in our data. Housing from that era is now 35 to 55 years old; crews replacing roofs, windows or mechanical systems on it need a toilet on site like any other crew.
Older Paint on Renovation Jobs
A large share of Ontario's housing, about 50% of units, was built before 1980 (ACS 2020–2024). EPA’s Renovation, Repair and Painting Rule covers paid work that disturbs painted surfaces in homes built before 1978, and OSHA’s lead standard for construction (29 CFR 1926.62) requires adequate hand-washing facilities for workers exposed to lead. If the crew will sand, scrape or demolish old paint, put one of the hand-wash stations next to the toilet.
Housing Mix
The most common housing type is detached houses, about 58% of units (lower than most U.S. places in our data), followed by buildings with five or more units at about 20% (ACS 2020–2024). Detached houses usually have a driveway or yard where a crew's unit can stand within reach of the service truck. Apartment and condo projects bring larger crews, and a property manager decides where units go. About 42% of occupied homes are rented (owner share lower than most U.S. places in our data), so check who controls the property before a unit goes on it.
OSHA 29 CFR 1926.51 sets the floor: one toilet for up to 20 workers, then a seat and a urinal per 40 (per 50 at 200 or more). More on sizing: job-site porta potties in Ontario.
Events, Weddings and Parties
On one of Ontario's hot days, a five-hour event for 1,000 people needs 9 units on the PSAI event chart, or 10 to 11 with alcohol (PSAI adds 10–20%). Every cluster of restrooms needs at least 5% accessible units, rounded up; hard, dry ground usually works as the route to the ADA unit, loose sand or gravel does not.
With only about 4 freezing nights a year, summer is the season to plan around; for a summer wedding, a restroom trailer brings air conditioning but needs a power source, while deluxe units need no hookups. At open-field events on dry, exposed ground, ask for units to be staked. More: event restrooms in Ontario and wedding restroom options.
Who to Ask About Local Rules
Ontario is an incorporated city with its own municipal government. For an event on public land, or a unit that will stand on a street, sidewalk or in a park, ask the Ontario city government before you book what applies.
Official Resources
Official Ontario government pages to check before placing units on public land or a street. We link to them; we don't summarise their rules.
- Engineering Applications & Resources | City of Ontario, California (City of Ontario (Engineering): right-of-way / street-use permits; checked 2026-10-13)
- Reservations | City of Ontario, California (City of Ontario: park and facility reservations; checked 2026-10-13)
Rental Types Available
Tell us the units you want; the provider serving your site confirms what's available.
Event Porta Potty Rental in Ontario
Festivals, fairs, races, parties and community events of any size.
Construction Porta Potty Rental in Ontario
Job-site units sized to OSHA's construction toilet requirements.
Wedding Restroom Rental in Ontario
Restroom trailers and deluxe units for outdoor ceremonies and receptions.
Restroom Trailer Rental in Ontario
Flushing toilets, running water and climate control in a towable trailer.
ADA Porta Potty Rental in Ontario
Wheelchair-accessible units for public events and job sites.
Hand-Washing Station Rental in Ontario
Freestanding sinks with fresh water and soap for events and job sites.
Deluxe Porta Potty Rental in Ontario
Roomier units with a foot-pump flush and often a sink inside.
Nearby Locations
- Eastvale, CA 5 mi
- Rancho Cucamonga, CA 7 mi
- Jurupa Valley, CA 8 mi
Also in San Bernardino County
Straight-line distances between Census place points; not a service-area or travel-time claim. All California locations.
Questions About Renting in Ontario
Can I rent porta potties in Ontario, CA?
Yes. Call (888) 417-6737, answered 24/7, with the Ontario address and dates; we connect you with a provider that serves the site, and the provider confirms units, price, delivery, servicing and pickup.
What weather should I plan for in Ontario?
NOAA 1991–2020 normals from the Riverside Muni. Airport, CA station, about 11 miles away: about 101 days a year at or above 90°F, 4 nights at or below 32°F and 9 inches of precipitation. Plan for dry, open ground first: stake units on windy sites.
How does summer heat affect a rental in Ontario?
About 101 days a year reach 90°F, so units fill sooner in summer; ask for servicing to match and add hand-wash stations for longer events.
I rent my home in Ontario. Can I order a porta potty?
Yes, but get the landlord's or property manager's OK on where it will stand first. About 42% of Ontario's occupied homes are rented (ACS 2020–2024), so this comes up often.
Who do I ask about a permit for an event or a unit on the street in Ontario?
Ask the Ontario city government. Its special-events or street-use office can say what applies to your date.
What affects the price of a porta potty rental?
Unit type, number of units, rental length, servicing frequency and how easy the site is to reach. The provider quotes before you book.
Don't know where to start?
Call now and tell us about your event or job site. We will help you work out the units you need and connect you with a provider that serves your location.
(888) 417-6737Phones answered 24 hours a day, 7 days a week.