Restroom Calculator

Need an estimate for how many porta potties your event needs? Use this handy calculator! For a more specific quote tailored to your needs, call us today at 800-210-8407!

My event is estimated at attendees, for hours.
  • Will there be more women than men?
  • Will there be alcohol served?

Your Estimated Sanitation Services

Based on what you've told us, we've generated this estimate for your needs.

If you have more details or would like expert advice to make sure you get the best sanitation solution, please call us at 800.210.8407.

Estimated Standard Portable Restrooms Needed:0
Estimated Hand Wash Stations Needed:0
Estimated Enhanced Access Restrooms Needed:0

Looking for a custom quote on those items?


Choose a Service

Portable Restroom at State Fair


We supply comfort, dignity, and luxury through our array of portable restrooms, showers, and sanitation accessories.

Misting Fans at Event

Climate Control

From cold and brisk winters to hot and humid summers and everything in between, Minnesota makes managing construction projects or hosting events an attentive task.

Onsite residential septic services pulling hoses

Septic Services

We are proud to offer a wide variety of septic services to our service area in Duluth, Minnesota.

Handwashing with SaniSink


The SaniSink™ is the ultimate solution for hand washing and safe water drinking in a stand-alone, portable unit.

Crowd at event with portable restrooms

Why Choose On Site Companies?

We have served our clients for nearly three decades as market leaders in portable sanitation and temporary climate control. At On Site Companies, it is our incredible team that allows us to expertly and individually serve our clients. We take pride in the dignity, comfort, and capabilities we provide our clients and their workers, guests, family, and community. Our range of rentals allows us to supply your job site, event, workplace, and any situation with the most effective option available. We are committed to delivering satisfaction in every rental and purchase.

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5 locations with a modern fleet and computerized routing

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Enough units, equipment, and staff to service jobs of ANY size

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Availability for last minute, overnight, and on weekend requests

Request Quote

Quickly and easily build your custom quote. Find the right rental for your job site or occasion by exploring available options and prices. For more questions, we encourage you to get in touch with our team. We look forward to working with you!

Questions? Get In Touch!

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What People Say About Us

On Site - out of site!!

We rented On Site restrooms for our daughters wedding at our lake home. Everyone loved them!!! They were very clean and had all the paper products supplied. We highly recommend On Site!

- Suzie

Great customer service!

I called to schedule for the first time, and it was seamless thanks to Deon. He was extremely courteous, knowledgeable, and professional.

- Jasmine

Always on time

Always on time. never leaves a mess in the street. and you can't beat their prices!

- Robert

Great service

Great service: on schedule, thorough, friendly. Didn’t need instructions, just did a nice job and didn’t interrupt our work flow.

- Mark

Great to work with!

Delivery and pick up are always on time the products are always clean and in great working order.

- Suzie