Basement Bathroom OttawaRough-in to finished, one fixed price
A finished basement bathroom for one fixed price - rough-in, permits, and pumps included.
- 15+ yrs hands-on
- Licensed & insured
- Written Triple Promise
Written Triple Promise
Fixed price · On time · 5-yr warranty
- WSIB cleared
A basement bathroom in Ottawa is one of the highest-return renovations in the house - but it lives or dies on what's under the slab. We start by finding your drain: if there's a rough-in, we build off it; if the drain sits above the slab or there's no line at all, we price an ejector or macerating pump into the fixed number instead of surprising you mid-build. Then we frame, waterproof, vent, and finish it on a written completion date, permit and inspection included.
What every basement bathroom ottawa job includes.
- Locating or confirming the existing drain rough-in
- Ejector or macerating pump when the slab needs it
- Framing, insulation, and moisture-managed wall assemblies
- Below-grade waterproofing and proper venting
- Licensed plumbing and electrical with permits handled
- Tile, vanity, toilet, and shower or tub install
- Egress and code compliance for lower-level bathrooms
- Final walkthrough and written workmanship warranty
Related: Bathroom renovations Ottawa · All bathroom services.
What you can actually expect.
- A finished, inspected basement bathroom - not a stalled rough-in
- One fixed price quoted on-site, locked in writing
- Drainage solved - gravity, ejector, or macerating pump as the slab requires
- Waterproofing and venting done to code below grade
- 5-year written workmanship warranty
Why Ottawa homeowners choose us.
Basements are where corner-cutting hides - skipped vapour control, a shower drain teed into a pump that can't handle it, no permit so no inspection. Ottawa's freeze-thaw and older poured foundations make that worse. We do the unglamorous parts right: confirm the drain before quoting, size the pump to the fixtures, manage moisture behind the finishes, and pull the City of Ottawa plumbing permit so it's inspected. One project manager, one crew, one written Triple Promise - fixed price, on time, fully warrantied.
See also: Licensed, insured & guaranteed.
- Fixed price
- On time
- Fully warrantied
How the build runs.
- 01Day 0
Free consult
Find the drain, check the slab, assess venting.
- 02≤ 48 hrs
Fixed-price quote
Written quote including any pump or drain work.
- 03Week 1
Design lock
Layout and finishes signed off; plumbing permit pulled.
- 0410–18 days
Build
Rough-in, inspection, waterproof, finish - one crew.
- 05Final day
Walkthrough + warranty
Final inspection cleared, written warranty signed.
What basement bathroom ottawa costs in Ottawa.
$14,000–$32,000+
A basement bathroom built off an existing rough-in lands in the $15K–$22K range. No rough-in - meaning we cut the slab or add an ejector/macerating pump - pushes toward $25K–$32K+. The pump-or-no-pump question is the biggest cost swing, which is exactly why we answer it at the consult and fix the number before you sign.
For permit timelines and inspection rules, see City of Ottawa plumbing permits.
Full breakdown: Get a fixed-price quote · Bathroom permit guide.
Straight answers, no fluff.
- Q.01
Do I need a pump for a basement bathroom in Ottawa?
It depends on where your drain sits. If the main sewer line runs below your basement slab, the bathroom can drain by gravity - no pump. If the line exits above the slab, you need an ejector pit or a macerating (upflush) system to lift the waste. We confirm which at the free consult and price it into the fixed quote, so it's never a mid-build surprise.
- Q.02
Do basement bathrooms need a permit?
Yes. Adding a bathroom means new plumbing and usually new electrical, both of which require a City of Ottawa permit and inspection. We pull the permit, schedule the inspections, and clear them before the final walkthrough. Skipping it is how you end up with a bathroom you can't disclose when you sell.
- Q.03
How do you keep a below-grade bathroom from getting damp or mouldy?
We manage moisture from behind the finishes: appropriate wall assemblies, waterproofing at the shower, proper mechanical venting, and no organic materials where they can wick water. That's the part liner and quick-finish jobs skip - and the reason basement bathrooms fail.
- Q.04
Is the price fixed even with the unknowns down there?
Yes. We do the investigating up front - drain location, slab, venting - so the written quote reflects the real scope. Once you sign, the number is locked; the only change is if you request one, priced and approved in writing first.
Ready for a fixed price on your
Ottawa project?
Call (343) 505-3613 or request a free design consult - written quote and timeline back within 48 hours.
- Fixed price. The number on page one is the number on the final invoice.
- On time. Your completion date is in the contract. Miss it, we pay you.
- 5-year workmanship warranty. Anything we built fails, we come back and fix it.