New Plumbing Rough-Ins in North Bay
New plumbing rough-in in North Bay is a licensed layout-and-install service from Poly-B Plumbing for new homes, additions, basement suites and light commercial units in North Bay, Callander, Sturgeon Falls, Powassan and the surrounding communities. A rough-in is the water, drain and vent piping installed inside the framing before the walls are closed, pressure-tested and inspected, with fixtures connected later at finish. Poly-B works from your plans or sketches, applies Ontario Building Code Part 7 for slope, venting and fixture units, coordinates the City inspection, and keeps to the builder’s schedule. A single bathroom rough-in takes one to two days; a full home two to five. Call 705-345-6616.
Service hours
- Monday to Thursday7:00 am to 7:00 pm
- Friday7:00 am to 5:00 pm
- Saturday and SundayClosed
Emergency service is available during business hours only. Members of the $49-per-month plan get priority scheduling.
What a rough-in includes, stage by stage
| Stage | What Poly-B installs | What gets inspected |
|---|---|---|
| Underground (before the slab) | Building drain, floor drain, sump pit, backwater valve if required, stub-ups for basement fixtures, water service entry | Underground drain inspection before concrete is poured |
| Drain, waste and vent (framing stage) | ABS or PVC stacks, branch drains at 1 in 50 minimum slope, vents sized to fixture units, cleanouts on stacks and building drain | Drainage and venting test, usually a water or air test with the inspector present |
| Water supply (framing stage) | PEX or copper distribution, main shut-off, isolation valves, hot and cold to every fixture location, hose bibs, water heater and softener stubs | Pressure test on the supply system |
| Finish (after drywall and tile) | Fixtures set, trims installed, water heater connected, everything tested at the tap | Final plumbing inspection with the building final |
Who Poly-B roughs in for
- Builders and general contractors on new homes, infill lots and cottages, who need a plumber who reads the plans, shows up on the framing date and passes inspection the first time.
- Homeowners adding a bathroom, a laundry room or a kitchen relocation during a renovation, coordinated with the contractor or directly with you.
- Basement developments and secondary suites, where the drain has to reach a fixture below the building drain, which usually means a sewage ejector or a carefully planned underground.
- Garages, workshops and detached buildings with a washroom or a utility sink, where the line to the building has to be buried below frost.
- Light commercial units: retail, office and small restaurant fit-outs, including grease interceptors and backflow devices where the City requires them.
Code facts that decide how a North Bay rough-in is laid out
Ontario Building Code Part 7 sets the rules and Poly-B applies them at the layout stage, because a drain laid wrong in the framing is a jackhammer job later. Drainage pipe of 3 inches or less falls at least 1 in 50 in the direction of flow, or a lesser slope only where a 0.6 m per second flow can still be shown. Every fixture is trapped and vented within the distance the code allows for its size, and vents are sized to the fixture units they serve. Stacks and the building drain get cleanouts. For the water service outside the building, the City of North Bay Engineering Design Guidelines require 1.8 m of cover for frost protection, and services with less than 1.0 m are not permitted; a line to a detached garage that ignores that will freeze in its first winter. On rural builds around Corbeil, Astorville, Bonfield and Powassan, the sewage system is a septic system permitted under OBC Part 8 through the North Bay-Mattawa Conservation Authority, and Poly-B is licensed for septic as well as plumbing and wells.
What a plumbing rough-in costs in North Bay
Poly-B Plumbing quotes rough-ins by scope, in writing, within 24 to 48 hours of seeing the plans or the site. The price depends on:
- Fixture count and spread. A stacked bathroom above a bathroom is efficient; a bathroom at the far end of a slab is not.
- Underground work. Basement fixtures below the building drain need an ejector pit; a sump pit and a backwater valve are often best done in the same pour.
- Material. PEX is standard for supply; copper where specified. ABS or PVC for drainage.
- Site conditions. Framing that changes mid-job, or a well and septic tie-in on a rural lot, is quoted as it arises rather than padded in advance.
Members of the $49-per-month plan get perks on future tie-ins and upgrades once the build is done.
How Poly-B runs a rough-in
Review plans and layout
Blueprints, sketches or a walkthrough. For renovations, the existing plumbing is assessed and layout options offered.
Confirm code and permits
OBC Part 7 for slope, venting, fixture units and access; permit coordinated with your contractor or pulled directly if Poly-B is managing the job.
Install water and drain lines
PEX or copper, ABS or PVC, mounted, supported and sloped correctly, with isolation valves and cleanouts where the code and common sense want them.
Pressure test and inspection
Supply lines pressure-tested, drainage tested, City inspection scheduled and attended.
Site coordination
Work with the framer, electrician and HVAC trade, stay in lane, leave the site clean and ready for the next stage.
Why builders in North Bay call Poly-B
- Over twenty years of layout experience, not just a certificate. Owner Paul Bosse is a second-generation Red Seal journeyman plumber in the trade since 2003.
- Licensed and insured for residential and light commercial, with up to $5 million in liability coverage. Plumber (306A) is a compulsory trade regulated by Skilled Trades Ontario.
- Licensed for wells and septic, which matters on every rural lot around North Bay.
- Written scope, so the builder and the homeowner both know what was priced.
- Flexibility when framing changes: runs are adjusted or rerouted, always inside the code.
Sources: Ontario Building Code 7.4.8, minimum slope; City of North Bay Engineering Design Guidelines, March 2021; North Bay-Mattawa Conservation Authority, septic permits; Skilled Trades Ontario, Plumber (306A).
Rough-in timing on a North Bay build
Plumbing rough-in follows framing and precedes electrical and HVAC in most sequences, because drains and vents need the straightest path and cannot bend around a duct. Poly-B books the rough-in date with the framer so the trades are not stacked in the same walls on the same day, and schedules the drainage and supply tests so the inspector’s visit lands before the insulator, not after. On winter builds, temporary heat matters: water tests are done with air where a house is not yet heated, and lines are left drained so nothing freezes between inspection and drywall.
What North Bay customers say
“Excellent customer service”TGunzSupreme, Google review, June 2025
“Paul is such a professional and you’re always updated on when he is coming.”Wayne Macchiusi, Google review, May 2025
Where Poly-B roughs in plumbing
Rough-in questions from North Bay builders and homeowners
Does Poly-B handle the plumbing permit?
Poly-B Plumbing coordinates with your contractor on the building permit, or pulls the plumbing permit directly when Poly-B is managing the job, and attends the City inspections.
Can Poly-B help plan where fixtures go?
Yes. Pipe routing, drain location and venting design are part of the quote, and Poly-B Plumbing will tell you when a proposed layout will cost more than a small change would.
How long does a rough-in take?
A single bathroom rough-in usually takes one to two days. A full home ranges from two to five days depending on access and scope.
What if the framing changes mid-job?
Poly-B Plumbing adjusts runs or reroutes as needed, staying inside the Ontario Building Code, and tells you before the change affects the quote.
Can a basement bathroom be roughed in below the sewer line?
Yes, with a sewage ejector pit and pump. Poly-B Plumbing plans the pit in the underground stage so the concrete is poured once.
Request a rough-in quote in North Bay
Monday to Thursday 7 am to 7 pm, Friday 7 am to 5 pm. Send the plans and Poly-B returns a scoped quote within 24 to 48 hours.
Call 705-345-6616 Request a free online quote
Poly-B Plumbing, 1107 Yellek Trail, North Bay, ON P1B 8G5.