Bismarck Porta Pros rents portable toilets, dumpsters, restroom trailers and related equipment across the city and surrounding towns. Most questions fall into 5 categories: sizing your order, costs, placement rules, service intervals and what goes where. We've answered the ones we hear most.
Count your workers or guests and apply OSHA 1926.51(c)(1) rules for construction sites: one toilet for 20 people or fewer, then one toilet seat and one urinal per 40 workers from 20 up to 200. For events and general use, a standard guideline is one unit per 50 attendees over 8 hours, or one per 100 for shorter gatherings. A standard porta potty rental holds 60 to 70 gallons and stands about 92 inches tall, so placement must account for ground clearance and accessibility. If any attendees have mobility challenges, add an ADA accessible porta potty for every five to ten units; ADA Standards section 213.2 requires at least one accessible unit per cluster, never fewer than one. Start with the headcount, add 20 percent for safety, and call us to discuss your specific event.
Daily rates for a standard unit run $100 to $350, depending on how long you need it and how many units you're renting at once. Weekly rentals cost $130 to $500 per unit, and monthly runs $125 to $325. Delivery fees range from $50 to $150 per trip for a week and $100 to $500 for a day or event. Service visits add $30 to $220 per week, or higher for weekend emergency calls. Porta potty rental cost varies most by duration and volume: the longer your rental, the better the per-unit rate. A single unit for one day costs more per day than the same unit for a full week. Deluxe flushable porta potties and restroom trailers command higher prices. Ask for a quote that lists each line item so you know what you're paying for.
Placement depends on ground type, foot traffic, and whether the unit blocks emergency routes. Hard, level ground is best, gravel or asphalt works; mud or soft earth does not. The unit itself is about 44 by 48 inches on the ground and needs a flat spot to prevent tipping. A portable toilet rental cannot sit in standing water, block fire lanes, or obstruct sight lines at intersections or building exits. If you want to place it in the public right of way, the sidewalk or street verge, check with the city first; permit rules vary. For events, keep units at least 50 feet from food service and upwind if possible. Construction sites must follow OSHA portable toilet requirements on spacing and access. If you're unsure about your specific location, send us a photo or address and we'll confirm it works.
A residential septic tank is typically pumped every 3 to 5 years, depending on tank size and household size. High-use households may need service more often. If you're renting a holding tank for temporary use, Bismarck Porta Pros handles pumping on the schedule you choose. For commercial tanks and grease interceptors, pumping happens more frequently because solids and fats accumulate faster; a grease trap is pumped when fats, oils, grease and solids reach 25 percent of the liquid depth. Don't ignore warning signs: slow drains, sewage smells, or wet patches in the yard. Septic tank warning signs often mean the tank is full or a line is blocked. Emergency septic service is available on weekends and after hours in Bismarck for urgent situations.
Hazardous waste never goes in a dumpster: no paint, solvents, oil, batteries, refrigerants or asbestos. Tires, yard waste and heavy metals require separate disposal. Most roll-off dumpsters accept construction debris, wood, drywall, concrete and general trash. Appliances, electronics and propane tanks are banned. Fill the dumpster so the lid closes; overflowing loads can spill on the road and create liability. For detailed rules, see what cannot go in a dumpster. When in doubt, ask before you load. A dumpster permit may be required if the unit sits in the public right of way in Bismarck; placement on private property usually does not.
Same-day delivery is often possible for standard units. Call before noon for afternoon delivery or next-business-day service. Weekend and holiday schedules are shorter, so plan ahead.
Private residential property usually does not need a permit. Commercial sites and public right-of-way placements do; confirm with the city first.
Yes. Units remain functional in cold weather, but access and ground stability matter more. Snow and ice make placement trickier; discuss winter conditions with Bismarck Porta Pros when you book.
Deluxe units include a flushing mechanism, hand sanitizer, and interior lighting. Standard units are gravity-drain only. Both hold the same tank volume.
We serve Bismarck and surrounding towns including Mandan (7.4 miles west), Lincoln (7.7 miles southeast) and Apple Valley (9.2 miles east). Call to confirm service for your exact location.
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