Expert rough-in plumbing for new construction, renovations, and additions. Toronto Building Code compliant. Licensed contractors experienced in residential and commercial projects.
Rough-in plumbing is the first stage of new construction plumbing installation, happening after structural framing is complete but before walls, floors, and finished surfaces are installed. During rough-in, we run all water supply lines to fixtures, install drain lines and vent stacks, position shutoff valves, and perform pressure testing to ensure the system is leak-free.
The term "rough-in" refers to the unfinished state—pipes and connections are exposed in the walls, floors, and ceilings so they're accessible for inspection and testing. After rough-in passes inspection, walls can be sealed and finished fixtures (faucets, toilets, trim) are installed later.
Whether you're building a new home, adding a bathroom, finishing a basement, or renovating a kitchen, proper rough-in installation is critical for code compliance, inspection approval, and long-term plumbing reliability. Call (647) 554-4356 to discuss your rough-in project.
All work meets Toronto Building Code requirements. We handle permits, coordinate inspections, and ensure first-pass approval from Toronto Building Services.
Since 2000, Water Pro has rough-in'd hundreds of residential and commercial projects. Our expertise prevents costly mistakes and ensures project efficiency.
We coordinate with your general contractor, framers, and electricians to fit rough-in work seamlessly into your construction schedule without delays.
Every rough-in installation includes complete pressure testing at 50 PSI for 15 minutes minimum to verify zero leaks before walls are sealed.
No hidden costs. We provide detailed quotes upfront including materials, labor, permits, and inspections. What you see is what you pay.
Standard rough-in heights and spacing ensure your fixtures install correctly and function optimally. We prevent costly re-work from incorrect positioning.
We follow a systematic five-stage process to ensure code-compliant, professional rough-in installation
We meet with you and your contractor to review blueprints, discuss fixture locations, and identify any special requirements (basement sump pump, island sink, multiple bathrooms). We create a detailed pipe routing plan that meets code and avoids structural conflicts. Schedule a site visit.
We handle the permit application with the City of Toronto, including blueprints, drawings, and specifications. Permits ensure your work is properly inspected and documented for resale value. We coordinate permit timing with your construction schedule. Call for permit details.
We install water supply lines to all fixtures (sinks, toilets, showers, tubs) at proper heights and locations per Toronto Building Code. Drain lines are installed with correct slope (1/4" per 12") toward the main sewer. All connections use approved fittings and materials (copper, PEX, or PVC per code).
We install vent stacks (typically 3" diameter) that allow drains to function properly and prevent siphoning. After all lines are in place, we perform complete system pressure testing at 50 PSI for minimum 15 minutes to verify zero leaks. Any failures are corrected immediately. Questions about testing?
We arrange the rough-in inspection with Toronto Building Services. The inspector verifies pipe sizing, fixture locations, slope, vent positioning, and pressure test results. Once approved, work is documented in your building permit file. You can proceed with drywall and finishing work. Schedule your inspection.
Experienced in residential and commercial rough-in installation across Toronto
Complete rough-in for new single-family homes, townhouses, and condominiums. We coordinate with framers, electricians, and general contractors. From main water line connection to fixture rough-in throughout entire home, we ensure everything is installed per code and meets inspection standards.
Adding a bathroom to your home? We rough-in water supply for toilet, sink, shower/tub and drain lines with proper slope toward main sewer. Whether master ensuite, guest bathroom, or powder room, we handle fixture positioning and all code requirements. Typical cost: $4,500-$8,000 per full bathroom.
Kitchen rough-in requires supply lines to sink and potential island plumbing. We route lines to avoid structural conflicts with cabinets and appliances. If adding an island sink (popular in modern kitchens), we ensure hot/cold supply and proper drain access. Cost: $3,000-$6,000 depending on layout complexity.
Basement rough-in is specialized work because drains sit below the main sewer line. We install sump pump systems for gravity drainage, size lines correctly, and ensure proper slope. Basement bathrooms add complexity but increase home value significantly. Budget: $5,000-$12,000 with sump pump system.
We specialize in townhouse and condo rough-in where shared walls and complex main line routing require precision planning. Common challenges: tight floor spaces, stacked bathrooms, shared plumbing chases. Our experience ensures efficient, compliant installation in tight configurations.
Changing fixture locations during renovation (moving toilet to different wall, relocating sink)? We reposition rough-in lines to match new layout while maintaining code compliance. We plan routing to minimize wall cutting and coordinate with drywall contractors for efficiency.
All rough-in work meets or exceeds Toronto Building Code requirements
| Fixture Type | Supply Height | Drain Height/Centerline | Wall Distance |
|---|---|---|---|
| Toilet | Water supply 24" | Drain opening 24" | 12" from wall |
| Sink (Bathroom) | Hot/Cold 20-22" | Drain 18-20" | Centered on sink |
| Kitchen Sink | Hot/Cold 24-30" | Drain 24-30" | Per cabinet design |
| Shower Valve | Supply 48" | Drain 3" at bottom | Per design layout |
| Bathtub Valve | Supply 48-60" | Drain 12" centerline | Per tub dimensions |
| Laundry Sink | Hot/Cold 36-48" | Drain 36-48" | Centered on sink |
| Floor Drain | N/A | Flush with floor | Per placement needs |
We design and install all rough-in work to exceed minimum code. Quality first, always.
Transparent pricing based on project scope and complexity
$2,500-$4,500
Toilet, sink, and shower only. Minimal plumbing runs, straightforward access.
Includes: Permit, installation, pressure testing, inspection coordination.
$4,500-$8,000
Toilet, sink, shower, and tub. More complex venting and supply runs.
Includes: Full rough-in, testing, permits, 90-day guarantee.
$3,000-$6,000
Sink supply and drain lines. Island sink adds $2,000-$3,000 for additional runs. Get kitchen quote.
Includes: Supply lines, drainage, dishwasher connection points.
$5,000-$12,000
Bathroom below main sewer line. Includes sump pump system for drainage.
Includes: Sump pump, check valve, drainage line, full bathroom rough-in.
More fixtures = more supply/drain runs. Each additional bathroom or fixture adds $1,000-$2,000 to project cost.
PEX is 15-20% cheaper than copper, faster to install. Copper is traditional, resale-attractive. Both are code-approved.
Long runs from main sewer or water supply add cost. Island sinks, basement bathrooms require extended piping.
Open-frame buildings are easier than tight crawlspaces. Concrete slab penetration costs extra if needed.
Basement bathrooms below main sewer line require sump pump system (adds $1,500-$2,500).
Toronto permits cost $200-$500 depending on project scope. We handle all paperwork and scheduling. Call (647) 554-4356 for permit information.
Mistakes caught during rough-in inspection require expensive rework. We prevent them upfront.
Installing supply lines at wrong heights means finished fixtures won't align properly. Toilet off-centerline, sink supply lines in wrong position. We measure precisely per Toronto Building Code standards to get it right the first time.
Drains must slope 1/4" per 12 feet toward the sewer. Too steep causes waste to outrun water (dry pipes, odor). Too flat causes pooling and blockages. We check slope with laser level throughout installation.
Vents are critical but often overlooked. Without proper venting, drains slow, gurgle, or siphon traps dry (allowing sewer gas into home). Code violations cause inspection failures and expensive corrections.
Using unapproved materials, wrong pipe sizes, or improper connections fails inspection and triggers costly rework. We only use Toronto Building Code-approved materials and methods.
Pressure testing reveals leaks before walls are sealed. Skip this and discover leaks after drywall installation—meaning you have to cut walls open for repairs. Every rough-in we do includes full system testing.
Planning fixture locations wrong means moving pipes after drywall is up. This costs 3-5x more and requires concrete cutting if in floor. Accurate planning before rough-in installation saves thousands.
Expertise in GTA residential and commercial rough-in work
We coordinate all rough-in inspections with Toronto Building Services. As licensed contractors, we know exactly what inspectors look for: proper pipe sizing, fixture locations, slope compliance, vent positioning, and pressure testing records. We ensure first-pass approval.
Inspection typically scheduled 1-2 weeks after rough-in completion.
We work regularly with Toronto-area general contractors, builders, and renovation companies. We understand construction timelines and can fit rough-in work seamlessly into your project schedule. Reliable communication and professional coordination ensure no delays.
We're known for being responsive, reliable, and easy to work with.
While we specialize in residential rough-in (single-family homes, renovations, additions), we also handle commercial projects (small offices, retail, multi-unit residential). We scale our approach based on project type and complexity.
25+ years of GTA experience ensures expertise you can trust.
Both are Toronto Building Code approved and widely used. PEX is increasingly popular for new construction due to flexibility, cost, and installation speed. Copper is traditional and has excellent resale appeal. We recommend based on your project type and budget. PEX typically costs 15-20% less.
We use premium materials regardless of choice—no budget alternatives that compromise quality.
Common questions from Toronto homeowners and contractors planning rough-in installation
Rough-in is the first stage of plumbing installation where water supply lines, drain lines, and vent stacks are installed before walls, floors, and fixtures are finished. Pipes remain exposed for inspection and testing before walls are sealed. After rough-in passes inspection, finished fixtures are installed later.
Costs depend on scope. Small bathroom: $2,500-$4,500. Full bathroom: $4,500-$8,000. Kitchen: $3,000-$6,000. Basement: $5,000-$12,000. Pricing includes permits, labor, materials, testing, and inspection coordination. Call for a free quote specific to your project.
Timeline depends on project size. Small bathroom: 2-4 days. Full bathroom: 5-7 days. Basement with sump pump: 7-10 days. This includes planning, installation, pressure testing, and permit inspection scheduling. We coordinate with your general contractor's timeline.
Yes, rough-in requires a City of Toronto permit for any new construction, renovations, or additions. Permits cost $200-$500 and ensure your work is inspected and code-compliant. We handle all permit applications, documentation, and scheduling with Toronto Building Services.
Rough-in includes all water supply lines (hot and cold to fixtures), drain lines from fixtures to main sewer, vent stacks for proper drainage, fixture shutoff valves, and pressure testing to verify zero leaks. Does not include finished fixtures (faucets, toilets, trim) which are installed after drywall.
Yes, basement rough-in is a specialty. Challenges include drains being below main sewer line (requires sump pump for gravity drainage), distance to main line, and foundation considerations. Basement bathrooms cost more ($5,000-$12,000) but significantly increase home value. We handle all elevation challenges.
Toronto Building Code specifies: Toilet supply 24", Sink 20-22", Shower valve 48", Tub 48-60". Drains positioned per fixture type. These measurements ensure finished fixtures install correctly. We measure precisely using laser levels to ensure code compliance and proper alignment.
Both are Toronto Building Code approved. PEX is increasingly popular for new construction: more flexible (fewer fittings), faster installation, 15-20% cheaper, less freeze-prone. Copper is traditional and has excellent resale value. Both last 50+ years. We recommend based on your project type and budget.
Toronto Building Services inspects rough-in after pipes are installed and pressure-tested but before drywall sealing. Inspection verifies: pipe sizing, fixture locations, drain slope (1/4" per 12"), vent stacks, and pressure test results. Inspection typically takes 1-2 hours. We arrange scheduling and are present during inspection.
Technically yes, but it's expensive and disruptive. Before drywall: quick and affordable changes. After drywall: requires cutting walls open, concrete cutting if in floor, re-routing pipes, re-inspection, drywall repair. Costs increase 3-5x. This is why accurate planning before rough-in is critical. Finalize fixture locations before installation starts.
Schedule your free planning consultation today. We'll review your blueprints, discuss fixture locations, and provide a detailed quote for your rough-in project.
25+ Years Experience | Licensed & Insured | Toronto, Mississauga, Brampton, Durham Region, York Region, Peel Region