Cost guide · Updated August 2026
Event Porta Potty Rental Costin Madison, WI
Event Porta Potty Rental in Madison costs $175 to $280 per unit for a standard unit, weekend event. Delivery, scheduled servicing and pickup are included. About 1 hour west of Waukesha via I-94. The full line-item breakdown and every add-on are below.
- $175
- From
- $280
- Up to
- unit
- Basis
- August
- Data vintage
Base rates in Madison
| Rental type | Low | High | Basis |
|---|---|---|---|
| Standard unit, weekend event | $175 | $280 | per unit |
| Deluxe flushing unit with sink, weekend event | $210 | $360 | per unit |
| Mid-event service visit (multi-day festivals) | $45 | $95 | per unit per visit |
| Attendant service for large events | $35 | $65 | per hour |
Add-on costs
These are the line items that turn a base rate into a final invoice. Every one of them is optional except the route surcharge, which is determined by your address.
| Add-on | Low | High | Basis |
|---|---|---|---|
| Attendant service for large events | $35 | $65 | per hour |
| Additional weekly service visit | $45 | $95 | per unit per visit |
| ADA-accessible unit upgrade | $190 | $350 | per unit |
| Hand-wash station | $85 | $200 | per station |
| Winter antifreeze charging (Dec–Mar) | $25 | $65 | per service visit |
| Route surcharge beyond 45 minutes from Waukesha | $35 | $110 | per delivery |
| After-hours or weekend dispatch | $75 | $200 | per order |
Ranges reflect Wisconsin market rates observed in 2026 for delivery, weekly servicing, and pickup. Final pricing depends on unit type, service frequency, placement distance from our Waukesha dispatch point, and rental duration. Call for a firm quote.
What drives the price in Madison
- Peak simultaneous attendance, which is the figure municipal permit tables key on rather than total gate count across the day
- Event duration, since units serving a 10-hour event need roughly double the count of a 4-hour event at the same headcount
- Alcohol service, which raises usage rates by an estimated 10-20% and is the most common cause of an undersized order
- Mid-event servicing on multi-day festivals, billed per unit per visit
- Peak-weekend scarcity between Memorial Day and Labor Day, when Wisconsin festival demand consumes regional inventory
Local factors specific to Madison
Madison demand is driven by a dense calendar of permitted public events on a physically constrained isthmus, plus sustained institutional construction around the University of Wisconsin campus and the Capitol. The Alliant Energy Center draws multi-day agricultural and trade shows that need mid-event servicing, and Ironman Wisconsin creates a linear, course-length placement problem rather than a single-venue one.
The isthmus is the defining constraint. Between Lake Mendota and Lake Monona the street grid is narrow, one-way, and heavily parked, and Capitol Square placements have to work around a permanent pedestrian ring. Course events like Ironman need units staged at intervals along public right-of-way, each requiring its own access window before roads close.
Estimate your Madison order
This uses the same OSHA and PSAI math we quote from. It gives you a range, not a quote — call (262) 583-6347 to convert it into a firm number.
| Standard portable restrooms | 5 |
|---|---|
| ADA-accessible units | 1 |
| Hand-wash stations (if food served) | 3 |
Estimated total $1,320 – $2,275 for a weekend event.
PSAI baseline of one unit per 50 guests over 8 hours, with a 15% alcohol adjustment applied. Your municipality may publish a binding table that overrides this.
Confirm this with a real quote: (262) 583-6347How many units Madison actually requires
Wisconsin has no statewide portable restroom ratio for public events. Requirements are set municipality by municipality, and only a minority of cities publish a binding numeric table. Where no ordinance table exists, organizers and suppliers size orders using Portable Sanitation Association International guidance.
| Attendee count at one time | 1 hr | 1-2 hr | 2-3 hr | 3-4 hr | 4-5 hr | 5-6 hr | 6-7 hr | 7-8 hr | 8-9 hr | 9-10 hr |
|---|---|---|---|---|---|---|---|---|---|---|
| 400-999 | 0 | 4 | 4 | 6 | 6 | 6 | 8 | 8 | 8 | 8 |
| 1,000-1,999 | 4 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 12 |
| 2,000-2,999 | 4 | 8 | 8 | 8 | 8 | 12 | 12 | 12 | 12 | 16 |
| 3,000-3,999 | 8 | 8 | 10 | 10 | 10 | 12 | 16 | 16 | 20 | 20 |
| 4,000-4,999 | 8 | 8 | 12 | 12 | 16 | 16 | 20 | 24 | 24 | 28 |
| 5,000-5,999 | 12 | 12 | 12 | 16 | 20 | 30 | 30 | 30 | 30 | 34 |
| 6,000-6,999 | 12 | 12 | 16 | 16 | 20 | 30 | 30 | 36 | 36 | 40 |
| 7,000-7,999 | 12 | 12 | 16 | 20 | 30 | 32 | 40 | 40 | 52 | 52 |
| 8,000-8,999 | 12 | 12 | 20 | 24 | 32 | 32 | 40 | 44 | 52 | 54 |
| 9,000-9,999 | 16 | 16 | 24 | 28 | 40 | 40 | 52 | 52 | 60 | 64 |
| 10,000 and up | 16 | 16 | 28 | 40 | 40 | 52 | 52 | 60 | 60 | 72 |
In practice: Before booking, confirm two numbers with your permitting office: whether the municipality publishes a binding table, and whether it counts peak or aggregate attendance. Those two answers change the order size more than any other factor.
Source: Individual Wisconsin municipalities; Portable Sanitation Association International, Municipal special event ordinances; PSAI event guidance. Verified August 2026.
Madison pricing questions
How much does event porta potty rental cost in Madison, WI?
$175 to $280 per unit for a standard unit, weekend event, and $210 to $360 per unit for a deluxe flushing unit with sink, weekend event. Every quoted rate includes delivery, scheduled servicing, and pickup. Ranges reflect Wisconsin market rates observed in 2026 for delivery, weekly servicing, and pickup. Final pricing depends on unit type, service frequency, placement distance from our Waukesha dispatch point, and rental duration. Call for a firm quote.
Is delivery included in the Madison price?
Yes. Delivery, scheduled servicing, and pickup are included in the ranges above. The one variable is distance: about 1 hour west of waukesha via i-94. Placements beyond roughly 45 minutes from our Waukesha yard carry a route surcharge of $35 to $110 per delivery.
What is the cheapest way to rent in Madison?
Longer rental terms and standard weekly servicing produce the lowest effective rate, because a one-day or weekend rental absorbs a full delivery and pickup trip in a single billing period. Booking outside the May-to-September peak also helps, since Dane County Farmers' Market on Capitol Square and the wider summer calendar concentrate regional demand into a handful of weekends.
Why do quotes for Madison vary between suppliers?
The three variables that move a quote most are service frequency, unit type, and whether winter antifreeze charging is included. A quote that looks low is often weekly service where your site needs twice-weekly, which matters because an under-serviced unit at a public event fails long before the event does.
Do you charge extra for winter rentals in Madison?
Yes, modestly. Dane County runs colder overnight than the Lake Michigan shoreline, so the antifreeze window here opens earlier and closes later than it does in Milwaukee. Antifreeze charging adds $25 to $65 per service visit, which typically moves a monthly construction rental from $150–$275 to roughly $195–$340 per unit.
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