How many portable toilets do I need on a construction site?
OSHA 1926.51(c)(1) requires 1 toilet facility for 20 workers or fewer, then 1 toilet seat and 1 urinal per 40 workers from 20 to 200, and 1 per 50 workers at 200 or more. Your exact count depends on crew size and how long the job runs. A four-person framing crew needs just one unit. A 60-person concrete pour needs three.
Chelsea hosts active commercial and residential construction. Placement near the job, not a long walk away, keeps OSHA compliance real and morale high. Boston Porta Pros can deliver within hours of your call and position units where workers actually need them. Standard porta potty rentals hold 60 to 70 gallons and are serviced weekly under normal conditions. We handle weekly, monthly and one-time rentals.
A standard unit measures about 44 by 48 inches on the ground and stands about 92 inches tall, so it fits through most gates and alleys. If your site has tight access or limited space, tell us and we'll find a solution. ADA accessible units require 5 percent of your fleet, at least one, if you're clustering units together per ADA Standards section 213.2. ADA accessible porta potties cost 120 to 240 dollars weekly.
What are the permit rules for porta potties in Chelsea?
Placement in the public right of way in Chelsea requires confirming local permit rules with the city before you order. Boston Porta Pros knows the rules here and can advise you, but each site is different. A driveway or private lot almost never needs a permit. A sidewalk or street placement does.
The rental cost itself doesn't change, but the permit timeline might. Chelsea is 7.5 miles north of Boston and has its own building and inspections department. If your project is on city land or near the curb, the permit takes a few days. Our service areas page lists what we cover. Call us with your address and we'll tell you straight up whether you need paperwork.
Permanent facilities like office buildings and warehouses in Chelsea already have plumbing. Temporary construction, demolition, events and emergency work need us. We've placed units at school renovations, parking lot repairs, street festivals and storm cleanup across the region. Boston Porta Pros shows up on time, services on schedule and picks up when the job is done.

How often does my portable toilet get serviced?
Standard units get one service visit per week under normal use, per ANSI/PSAI Z4.3. That means pumping the tank, refilling supplies, and cleaning the interior. If you have a 60 to 70 gallon tank and ten workers using it over a 40-hour week, weekly service keeps it fresh. Heavy use, more than 30 people or extended hours, needs twice-weekly service.
Chelsea events, festivals and outdoor markets draw crowds that need fast turnaround. We can arrange extra service runs if foot traffic spikes. Deluxe flushable porta potties cost 150 to 300 dollars per week and come with upscale interiors, hand soap and sanitizer. Those suit weddings, corporate events and temporary office setups better than rough construction sites.
29 CFR 1910.141(d)(2) requires handwashing facilities with soap and towels or a hand drying device, hand sanitizer alone doesn't meet code. If your crew is applying paints, coatings, herbicides or insecticides, OSHA 1926.51(f)(1) mandates washing stations at the site. Boston Porta Pros rents portable sinks and handwashing stations to handle that requirement. Soap and paper towels are included.

Can I rent a portable toilet for just one day?
Yes. Daily rates run 100 to 350 dollars depending on the unit type. A weekend rate is higher because demand spikes. Delivery to Chelsea from Boston takes under 15 minutes, so a one-day event rental is realistic.
We also rent restroom trailers with multiple stalls and running water for festivals, concerts and outdoor markets. Roll-off dumpsters and temporary fence are available on the same short-term basis. Call or request a quote and we'll hold a unit for you.

What happens if the holding tank fills up before my service date?
Call us immediately. If you're using the unit more than expected, we'll add an extra service. We monitor tank capacity and you shouldn't have to wonder. A standard tank holds 60 to 70 gallons. Heavy traffic in summer heat fills it faster than you'd predict.
If you're renting a portable toilet for a long event or a multi-month job in Chelsea, discuss your expected use with Boston Porta Pros upfront. We'll size the tank and set the service interval to match. Monthly porta potty rentals run 125 to 325 dollars and are serviced twice monthly by default.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.