If you’re planning a bathroom upgrade in Toronto or the GTA, a double vanity installation cost can vary dramatically depending on what’s involved. A full double vanity installation isn’t just about setting a cabinet in place—it includes demolition of the old fixture, plumbing connections for two sinks, venting, and sometimes structural adjustments. Understanding the real breakdown helps you budget accurately and avoid surprise costs when work starts.
We recently completed a 72-inch double vanity replacement in the GTA that involved lifting a 300-pound cabinet upstairs, removing an old single-sink vanity, and running new plumbing for dual sinks. That project reflects what many homeowners face: the hidden labour and logistics that push costs beyond the cabinet price tag alone. This guide walks through the actual components, real numbers, and what you should expect to pay in 2026.
What Goes Into a Double Vanity Installation
A double vanity installation involves more than one task. You’re replacing the old fixture, running new drain and supply lines for two sinks, ensuring proper venting, and securing a heavy cabinet to wall studs.
Cabinet & Structure
The vanity cabinet itself is the anchor. Double vanities range from 48 to 96 inches wide and typically weigh 200–400 lbs depending on material (solid wood, plywood, or composite). The cabinet must be secured to wall framing with lag bolts or appropriate fasteners, and the wall may need reinforcement if studs aren’t positioned correctly.
Demolition & Removal
The old vanity, sink, and faucet must come out first. This includes cutting and capping off old supply lines, disconnecting the drain trap, and safely removing the fixture. Disposal of the old cabinet and materials adds to labour time, especially if it’s being hauled downstairs or off-site.
Plumbing Rough-In & Connections
Two sinks mean two separate drain lines (or one shared drain with a proper Y-fitting), two supply lines (hot and cold), and often new vent piping. Ontario plumbing code requires proper slope on drain lines (1/4 inch per foot) and accessible shut-off valves. If the new vanity location differs from the old one, new rough-in work is needed.
Faucets & Fixtures
You’re installing two faucets, supply hoses, and drain assemblies. Each sink needs its own tailpiece, P-trap, and connection to the main drain or secondary drain line.
Total scope: demolition, plumbing disconnect/reconnect, cabinet installation, sink mounting, faucet installation, caulking, and cleanup. RenoHeal’s vanity installation service handles all of this as a single project.
Real Project Snapshot: 72″ Double Vanity Replacement in the GTA
A North York homeowner wanted to upgrade from a single-sink 48-inch vanity to a spacious 72-inch double vanity in their master bath. The old fixture was working but outdated; the new cabinet and dual sinks would give them more counter space and morning routine flexibility.
Project Details
- Vanity size: 72 inches (double sink)
- Cabinet weight: 300 lbs
- Old fixture: Single-sink vanity, existing plumbing at original location
- Bathroom layout: Master bathroom; vanity positioned against exterior wall with studs available for anchoring
- Access challenge: New vanity had to be carried upstairs (second floor) and maneuvered through a doorway
- Plumbing scope: Disconnect old drain and supplies, run new dual supply lines, install proper dual drain configuration with Y-fitting and venting
- Additional work: Removal and disposal of old vanity, patching wall where old faucet holes existed, caulking perimeter
Why This Project Is Typical
Moving from single to double vanity is one of the most common bathroom upgrades we see across Etobicoke, Scarborough, and Markham. The weight and stair logistics are real factors—you can’t just drag 300 lbs across a hardwood floor. The plumbing complexity also grows because you’re designing for two separate drain paths and ensuring code-compliant venting. Old walls may not have studs in the right spots, requiring additional blocking.
This job required careful sequencing: demo first, plumbing prep, cabinet installation with bracing, sink and faucet mounting, final caulking. Each step affects cost. Get a free estimate if you’re considering a similar upgrade—we can assess your specific bathroom layout and give you a real labour and materials breakdown.
Double Vanity Installation Cost Toronto: Full Price Breakdown for 2026
A typical double vanity installation in Toronto or the GTA runs between $2,200 and $4,500 CAD, depending on the vanity quality, plumbing complexity, and labour accessibility. Here’s what you’re actually paying for:
| Item | Cost Range (CAD) | Notes |
|---|---|---|
| Double vanity cabinet (48–72 inches) | $800–$2,000 | Mid-range to premium. Includes sink basin or vessel sinks. |
| Plumbing labour (supply, drain, vent) | $600–$1,200 | Two P-traps, supply lines, shut-off valves. Relocation costs extra. |
| Installation labour (cabinet, countertop, sinks) | $400–$800 | 4–6 hours on-site. Includes levelling, sealing, finishing. |
| Old vanity removal & disposal | $150–$300 | Requires hauling, dump fees. Included in most quotes. |
| Materials (caulk, brackets, fasteners) | $100–$250 | Silicone, plumber’s putty, anchors, shims. |
A real RenoHeal project: a 72-inch double vanity replacement with two sinks, old single vanity removal, and full plumbing hookup (including new supply lines and P-traps) ran $3,100 in Scarborough. The vanity weighed 300 lbs and required careful stair access, which added labour time but no surprise fees.
Your actual cost depends on whether existing plumbing is reusable, cabinet finish, and whether you’re in Toronto proper or farther out (Markham, Richmond Hill, or Vaughan may add travel time). Get a free estimate with measurements and photos of your current setup.
Factors That Push the Price Up or Down
Access and Stair Carry
If your bathroom is upstairs or in a tight corner, labour goes up. A 72-inch vanity weighs 200–350 lbs and doesn’t fit through narrow hallways or tight stairwells without skill. Some installers charge $50–$150 extra per floor or per awkward angle. Ground-floor bathrooms cost less.
Plumbing Relocation
If your new vanity doesn’t line up with existing drain and supply lines, you’ll need to move pipes. This adds $300–$600 and may require permits in Toronto if it involves structural changes. A second sink means two P-traps, two supply shut-offs, and proper venting—standard work, but it takes time.
Vanity Size and Material
A budget 48-inch vanity costs $600–$1,000; a 72-inch custom vanity runs $1,500–$2,500. Engineered wood is cheaper than solid wood or stone tops. Vessel sinks and premium finishes add $200–$400 to material costs.
Floor Condition
Soft or uneven subfloors mean extra shims, time, and potential floor repair before installation. If the floor dips toward the drain, the vanity won’t sit level, and plumbing won’t drain properly. Levelling can cost $150–$400 extra in Etobicoke or Brampton basements.
Work with a licensed bathroom service that offers free estimates and knows Toronto GTA codes. RenoHeal’s fully insured technicians handle all these variables and warranty eligible work.
DIY vs. Hiring a Professional
Installing a double vanity yourself might seem like a way to save money, but plumbing mistakes in Ontario can end up costing far more than professional labour. One misaligned drain pipe or leaking connection can lead to water damage, mold growth, and structural issues—repairs that easily exceed $2,000–$5,000.
Ontario plumbing code is strict about trap sizing, vent placement, and slope requirements. If your 72-inch vanity needs two separate drain lines and a shared vent, getting the pitch wrong (it should slope 1/4 inch per foot toward the main stack) will cause slow drains or backups. Professional installers know these codes and pass inspections on the first try.
When DIY becomes risky:
- Moving a 300-pound vanity upstairs without proper bracing or dolly work causes injuries and wall/floor damage.
- Disconnecting old plumbing without shutoffs in the right place floods your bathroom.
- Using the wrong fittings or silicone caulk (instead of plumber’s caulk) leads to leaks within weeks.
- Missing a permit inspection in Toronto, Scarborough, or Mississauga can void your home insurance claim if problems arise.
Hiring a professional bathroom service takes the liability off your shoulders. Experienced technicians come with insurance, know local code, and guarantee their work. For a 72-inch double vanity with plumbing, labour typically runs $400–$700, which is worth the peace of mind and speed.
Common Mistakes to Avoid During Double Vanity Installation
Double vanities have tighter margins for error than single units. The most frequent issue we see in North York and the GTA is incorrect rough-in spacing—homeowners or contractors measure once and cut twice, only to find the p-trap doesn’t align with the wall stub-out or the second sink’s drain sits directly above the vent, which violates Ontario code.
Top installation mistakes:
- Wrong drain alignment: Each sink needs its own trap and a clear path to the main vent. If the second drain sits 6 inches to the left but the wall stub-out is 8 inches right, your vanity won’t fit properly.
- Inadequate support: A 300-pound vanity needs blocking behind the wall studs where the cabinet fastens—usually at 16 and 32 inches from the edge. Skipping this causes the vanity to sag or pull away from the wall.
- Over-torquing faucet nuts: Tightening brass fittings too hard cracks the ceramic bowl underneath. Hand-tight plus a half-turn with a wrench is the rule.
- Forgetting the shutoff valves: Install isolation valves (quarter-turn ball valves) under both sinks for future repairs. This is code-required in Toronto and Vaughan.
- Improper caulking: Using paintable caulk instead of 100% silicone at the backsplash and wall seams allows water to seep behind the vanity.
Getting measurements right from the start—especially the horizontal distance between sink centres and the vertical height of the drain stub-outs—prevents expensive rework. If you’re unsure, a free estimate from a seasoned installer in Toronto or the GTA can catch these issues before they become problems.
How to Get an Accurate Quote in the GTA
Getting an accurate quote for double vanity installation means giving your contractor the right information upfront. Measurements are the foundation—you’ll need the width of your cabinet opening, the depth of the vanity, and the height from the floor to where the top of the vanity will sit. Also note the countertop material (quartz, marble, laminate) since that affects both labour and cutting costs.
Tell your contractor about plumbing details: how many supply lines are currently in place, where the drain exits, and whether you’re upgrading from a single sink. Mention if the old vanity needs removal and disposal—in Toronto and surrounding areas like North York and Scarborough, haul-away costs vary by contractor.
Don’t forget to describe access. If your double vanity weighs 300 lbs and needs to go upstairs through a narrow hallway, labour costs increase. Note any wall damage, electrical outlets you’re moving, or tile work needed around the new cabinet.
RenoHeal offers free estimates—our team measures, assesses plumbing runs, and provides a detailed labour and material breakdown. We’ve completed over 3,500 projects across the GTA, so we catch hidden costs early.
Frequently Asked Questions
How much does it cost to install a double vanity in Toronto?
Most Toronto homeowners pay between $800 and $2,500 for a complete double vanity installation, including labour, basic plumbing connections, and hardware. The wide range comes down to whether plumbing needs to be moved, the vanity unit itself, and countertop material. Budget an additional $300–$800 if new drain rough-in or supply line relocation is required.
Do I need a plumber to install a double vanity, or can a handyman do it?
If you’re connecting to existing supply and drain lines without moving anything, an experienced handyman can handle the full installation — cabinet, countertop, sinks, faucets, and drain hookups. If the rough-in needs to be relocated or new walls need to be opened for pipe work, a licensed plumber is required for that portion under Ontario regulations. RenoHeal coordinates both trades so you don’t have to manage multiple contractors.
How long does a double vanity installation take?
A straightforward swap — removing the old vanity and installing a new double unit with existing plumbing in place — typically takes 4 to 8 hours in a single day. If the countertop is a custom cut stone slab requiring a separate template and fabrication visit, the project spans two days. Plumbing relocation adds time and may require a follow-up inspection before the walls are closed.
Can a 72-inch double vanity fit through a standard doorway?
A standard interior door in Ontario is 32 to 36 inches wide, so a 72-inch vanity cabinet cannot pass through as a single unit. Most manufacturers account for this by shipping the cabinet in two 36-inch sections that are joined on-site — confirm this with your supplier before ordering. If your unit is one solid piece, your installer may need to remove the door and casing or, in rare cases, bring the vanity in through a larger opening.
Does replacing a single vanity with a double vanity require moving plumbing?
It depends on where the existing drain and supply lines sit relative to the new cabinet’s sink positions. A double vanity has two drains and two sets of supply lines, so if your current rough-in is centred for one sink, at least one side will likely need new connections. Minor extensions using existing access points are common and manageable without opening walls; a full relocation means cutting into the floor or wall and requires a plumber.
Is a permit required for vanity installation in Ontario?
A straightforward vanity replacement — same location, no new drain rough-in — does not require a building permit in Ontario. However, if the project involves relocating drain lines, adding new supply connections inside walls, or any work that changes the existing plumbing configuration, a plumbing permit from your local municipality is required under the Ontario Building Code. RenoHeal will flag permit requirements during your free estimate so there are no surprises.
What to Expect When Budgeting for Double Vanity Installation Cost in Toronto
A double vanity upgrade is one of the most impactful bathroom improvements you can make — it adds storage, function, and real resale value. The total cost typically lands between $800 and $2,500 for most GTA homes, with plumbing relocation being the single biggest variable. Get clarity on your rough-in locations before you purchase the vanity unit and the numbers become much more predictable.
Material quality, countertop choice, and whether you’re working with existing drain positions will move your project toward the low or high end of that range. Hiring one team to handle cabinet installation, plumbing connections, and finishing details keeps the job on schedule and eliminates the coordination headaches that come with managing multiple trades.
RenoHeal has completed 3,500+ home projects across Toronto and the GTA, and our technicians handle double vanity installations start to finish — same-day availability, $5M liability insurance, WSIB coverage, and a workmanship warranty on eligible services. Request a free quote today and find out exactly what your project will cost, or visit our vanity installation service page to learn more about how we work.