MAMBA DRAINAGE SERVICES
Bathroom Renovation Plumbing Vancouver
Bathroom renovation moving the toilet, opening up the shower, adding a double-vanity, or relocating the tub? Plumbing rough-in and finish coordinated with your GC.
Rough-in, fixture install, supply + drain routing, City permits, code compliance. (778) 961-0824.
Bathroom Renovation Plumbing in Vancouver
Bathroom renovations almost always include plumbing work. Moving the toilet to gain layout space, opening up the shower, adding a double-vanity, relocating the tub or removing it entirely for a larger walk-in shower. All of this requires plumbing rough-in (the supply lines and drain pipes inside the walls and under the floor) before the finishes go in.
Common Vancouver bathroom reno plumbing scopes:
Toilet relocation. Moving a toilet 2-6 feet requires new closet flange placement, new supply line routing, and verification of proper drain slope to the existing stack. $789-$1,489 plumbing portion. Combined with new floor and tile install by your GC.
Shower expansion. Removing a tub for a larger walk-in shower means new drain location, new shower valve rough-in, new supply lines, and verification of waterproofing rough-in (we coordinate with your tile contractor). $1,489-$2,989 plumbing rough-in. See also our shower repair page for trim and finish work.
Double vanity addition. Adding a second sink to a previously single-sink vanity. New supply lines to the second sink, new drain to the existing branch with proper venting, two faucet installs. $1,289-$2,189 plumbing portion.
Full bathroom gut-and-remodel. Complete plumbing reroute – all supply lines, all drains, new fixtures, possibly upgrading from galvanized supply to PEX, new shut-offs throughout. $2,989-$6,989 plumbing portion. Often combined with pipe replacement if the house has Poly B or galvanized.
All bathroom reno plumbing in Vancouver requires City permits. We pull the permit, schedule the rough-in inspection (before drywall closes), schedule the final inspection (after fixtures install), and produce stamped certificate of work for your property file. $5M general liability, full WCB.
Coordination with your GC is critical. Plumbing rough-in happens after framing and before drywall. Final fixture install happens after tile is in and before paint touch-up. Wrong sequencing causes scratches on new finishes or delays the entire project. We work with most established Vancouver GCs and can coordinate the schedule directly.
Rough-In Plumbing Phase
Plumbing rough-in is the inside-the-walls and under-the-floor work that happens before tile, drywall, and paint. Done wrong, it forces expensive re-work after finishes go in.
Toilet rough-in. New closet flange at the proper distance from the finished wall (typically 12″ for standard toilets, 10″ or 14″ for compact / heritage builds). PEX or copper cold-water supply to the angle stop location. Verified drain slope (minimum 1/4″ per foot) to the existing stack.
Vanity rough-in. Hot and cold supply stub-outs at proper height (typically 21″ above finished floor for single-handle, varies for widespread). Drain stub-out at proper height (typically 17″ AFF for a vanity sink). Wall blocking for wall-hung sinks or vessel sinks.
Shower rough-in. Mixing valve placement (typically 45-48″ AFF for shower head, 12″ higher for handheld bar). Shower drain placement (centered under the head for fixed showers, offset for benches or curbs). Waterproof pan flange verification.
Tub rough-in. Tub drain placement (typically 14-16″ from drain end of the tub), tub spout supply stub-out at proper height, mixing valve coordination with the shower if combined tub-shower.
Vent stack verification. BC plumbing code requires fixture venting to prevent siphon pressure issues. We verify the existing vent stack will adequately serve the new fixture count, add new vent connections where needed.
Rough-in inspection. City of Vancouver plumbing inspector visits after rough-in is complete and BEFORE drywall closes. We schedule the inspection, walk the inspector through the rough-in, address any code issues immediately. Pass the inspection, then your GC can close walls.
Typical rough-in phase duration: 1-3 days depending on scope. We coordinate with your GC’s framing crew and drywall crew to minimize project delay.
Fixture Install Phase + Final Inspection
After tile and drywall, before paint touch-up, we do the fixture install phase.
Toilet install. Set new toilet on the closet flange, fresh wax seal (or Korky beeswax-free), brass closet bolts, level + caulk + supply line. See toilet repair and installation for fixture details.
Vanity faucet install. Install new lavatory faucet (Moen, Delta, Kohler, Grohe, Brizo, Hansgrohe), pop-up drain stopper, P-trap, supply lines, quarter-turn shut-offs. See faucet installation.
Shower trim install. Mount cartridge in the rough-in valve body, install trim plate and lever, install shower head and arm, install hand-held slide bar (if applicable), test flow and temperature. See shower service.
Tub fixture install. Install tub spout (slip-fit or threaded), tub drain and overflow, test for leaks. Coordinate with tile contractor on caulk lines.
Final inspection. City of Vancouver plumbing inspector visits after all fixtures are installed. Verifies code compliance on supply, drain, venting, and fixture install. Pass the inspection, certificate of work issued, project signed off.
Coordination back to your GC. After our final inspection passes, your GC can complete paint touch-up, mirrors, towel bars, and final cleaning. We typically schedule our fixture install for 1-2 days, with the City inspection scheduled for the day after install completion.
Typical full bathroom renovation timeline: 3-6 weeks total with proper plumbing coordination. Our plumbing portions: 1-3 days rough-in, 1-2 days fixture install, plus inspections.
Bathroom Renovation Plumbing Services
Plumbing Rough-In (Pre-Drywall)
Supply lines, drain pipes, vent stack additions, fixture stub-outs. City inspection coordination. 1-3 days. $1,489-$2,989.
Toilet Relocation Rough-In
Closet flange relocation, supply line routing, drain slope verification. $789-$1,489.
Shower Expansion (Tub-to-Walk-In)
Drain relocation, new shower valve rough-in, supply line work, waterproofing coordination. $1,489-$2,989.
Double Vanity Addition
Second sink supply, drain, venting. $1,289-$2,189.
Fixture Install (Post-Tile)
Toilet, vanity faucet, shower trim, tub spout install. Coordinated with GC for timing. $789-$1,489.
Full Bathroom Gut-and-Remodel
Complete plumbing reroute, all supply + drain + fixtures + permits. $2,989-$6,989 plumbing portion.
Why Vancouver Homeowners Choose Mamba for Bathroom Reno Plumbing
GC Coordination Standard
We work with most established Vancouver GCs. Rough-in scheduled with framing, fixture install after tile, before paint touch-up. Proper sequencing saves cycle time and prevents finish damage.
City Permits and Inspections Handled
Every reno includes the City of Vancouver permit, rough-in inspection coordination, final inspection scheduling, stamped certificate of work.
Code-Compliant Throughout
BC plumbing code venting, fixture spacing, supply pressure rated. No DIY shortcuts. Documentation for resale and insurance.
Coordinated with Other Mamba Services
If your reno includes pipe replacement (Poly B or galvanized swap), hot water tank upgrade, or gas line work for a new fireplace, we handle it all in coordinated scheduling.
Vancouver Bathroom Renovation Plumbing Prices
Toilet relocation rough-in: $789-$1,489.
Shower expansion (tub-to-walk-in) rough-in: $1,489-$2,989.
Double vanity addition rough-in: $1,289-$2,189.
Full bathroom gut-and-remodel (rough-in + fixture install): $2,989-$6,989 plumbing portion.
Fixture install phase (post-tile, toilet + vanity faucet + shower trim + tub): $789-$1,489.
City permits and inspections: Included.
Combined with Poly B or galvanized repipe: Add $4,489-$9,989 (see pipe replacement for full repipe pricing).
Combined with hot water tank upgrade: Add $1,489-$2,489 (see hot water tank).
Heritage bathroom restoration premium: Add 15-25% for non-standard rough-ins and code-compliance work in pre-1970 East Van homes.
Bathroom reno coming up? Plumbing rough-in is the foundation – get it right.
9 Bathroom Renovation Plumbing Tips
- Plan plumbing layout before framing. Moving a toilet 2 feet after framing is expensive. 6 feet is much more expensive. Lock the layout before walls close.
- Schedule rough-in inspection before drywall. City of Vancouver requires rough-in inspection visible. Closed drywall before inspection means cutting it open. We schedule properly.
- Upgrade supply lines during reno. If you have Poly B or galvanized, the reno is the perfect time to upgrade to PEX. Marginal cost during a reno vs. standalone repipe.
- Verify pressure-balance shower valves. BC code requires pressure-balance or thermostatic shower valves for scald protection. Older homes may have non-compliant valves; reno is the time to upgrade.
- Coordinate vent stack with new fixtures. Adding fixtures to a small bathroom may require additional venting. We verify during rough-in planning.
- Choose fixtures BEFORE rough-in. Different toilets have different rough-in distances. Different shower valves need different rough-in heights. Pick fixtures first, design rough-in around them.
- Coordinate with tile contractor on waterproofing. Schluter KERDI, Wedi, or traditional pan liner. The waterproofing method affects the drain assembly we install. Coordinate before rough-in.
- Plan for proper fall on shower drain. 1/4″ per foot minimum slope. Improper slope causes standing water on the tile and shorter tile life.
- Get the certificate of work for property records. Stamped certificate from City inspection is valuable at resale. We email it within 24 hours of final inspection.
Frequently Asked Questions
Rough-in phase 1-3 days. Fixture install phase 1-2 days. City inspections add 2-5 days total. Full bathroom project typically 3-6 weeks with all trades.
Yes – City of Vancouver requires plumbing permits for fixture relocation or new plumbing routing. We pull the permit and coordinate inspections.
Yes – we work with most established Vancouver GCs. Coordinated scheduling on rough-in (with framing crew) and fixture install (after tile, before paint).
We handle the plumbing portion. For tile and paint we coordinate with your GC or recommend Vancouver contractors. Some homeowners prefer plumbing-only scope; many want full project coordination through their GC.
Yes – pre-1970 Vancouver heritage bathrooms need careful work to preserve character while meeting current code. Sioux Chief adapters, brass conversions, code-compliant supply transitions. 15-25% premium typical.
Yes – if your home has Poly B or galvanized supply, doing the repipe during the bathroom reno is the most cost-effective time. Marginal cost during a reno vs. standalone repipe.
10-year workmanship warranty on bathroom reno plumbing rough-in and fixture install. Manufacturer warranties separate (Moen, Kohler, Delta lifetime on cartridges; Toto 5-10 year on toilets; PEX-A 25-year manufacturer).
Plumbing rough-in 1-3 days requires water shut-off to that bathroom but not the whole house. Fixture install 1-2 days. Full reno (with tile, drywall, paint by your GC) the bathroom is usually unavailable for 3-6 weeks.
Yes – sometimes just relocating the vanity, adding a hand-held shower bar, or changing the shower trim is enough. $789-$2,489 for partial reno plumbing work.
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