Sink Installation & Replacement in Toronto & the GTA
Toronto & the GTA • Call 647-784-8448
Tornado Plumbing & Drains installs and replaces kitchen, bathroom, vanity, and laundry sinks across Toronto and the GTA, handling the drain alignment, supply lines, and shutoffs so the new sink fits and seals the first time. Tornado Plumbing & Drains installs and replaces kitchen, bathroom, vanity, and laundry sinks across Toronto and the GTA — including supply lines, drain trim, P-trap, garbage disposal, and shutoff replacement when needed.
Last updated April 24, 2026
When this service makes sense
Part of Plumbing Repairs & Installations in Toronto & the GTA
Book this service when
Book this when a basin is cracked or rusted through, a new sink will not sit flush or clamp tight, the drain no longer lines up with the trap, or the shutoffs under the sink are seized.
Common signs
- A cracked or chipped cast-iron or porcelain basin, or a stainless bowl with rust-through at the drain that no longer holds water
- The new sink you bought doesn't sit flush — the cutout is too small for the lip, or an undermount won't clamp tight to the countertop underside
- Drain alignment is off: the new tailpiece sits higher or lower than the existing trap arm, so the P-trap leaks or won't thread up
- Old quarter-turn or compression shutoffs under the sink are seized, weeping, or won't fully close to let you change the faucet
If you're not sure, compare these too
- Faucet Repair & Replacement - when the faucet is the only thing changing
- Garbage Disposal Installation & Repair - when a disposer is being added under the new sink
On this page
Quick guide and key details
What changes price and scope
- Sink type: drop-in, undermount, or farmhouse.
- Whether the sink is supplied.
- Cabinet work and seal detail on undermount or farmhouse installs.
How a professional visit usually unfolds
1. Remove existing sink
Disconnect supply and drain, lift out the old sink. Required for replacement.
2. Test shutoffs and supply
Confirm the shutoffs close and the supplies are sound. Avoids a leak after install.
3. Install new sink
Set the new sink, seal, and secure. Permanent installation.
4. Connect plumbing
Faucet, supply lines, drain trim, P-trap. Complete the system.
5. Test
Run hot, cold, drain, and check for leaks. Confirms everything works.
Recent Sink Installation & Replacement work
These real project photos show the kind of work this service involves, so you can see examples before you book.
Technician handling a residential interior plumbing service call
This is a useful general indoor-service photo for interior plumbing pages where homeowners want to see a real technician on site instead of generic brand graphics.
Sink installation pricing (Toronto 2026)
| Scope | Starting from | Typical range |
|---|---|---|
| Drop-in sink replacement | $280 | $280 to $500 |
| Undermount sink installation | $450 | $450 to $900 |
| Farmhouse sink installation | $650 | $650 to $1,400 |
| Sink + faucet combo install | $450 | $450 to $1,000 |
Ranges are for planning and triage. Final pricing depends on access, urgency, materials, and whether the visit stays isolated once the area is opened.
Cities Where This Service Is a Strong Fit
Related Services
- Plumbing Inspection & Maintenance
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- Faucet Repair & Replacement
Faucet repair in Toronto for drips, under-sink leaks, and seized handles, plus replacement. Book online or call 647-784-8448. From $120, licensed & insured.
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Toilet repair and installation in Toronto: running toilets, base leaks, weak flush, and new installs. Book online or call 647-784-8448 — repairs from $150.
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Rough-in plumbing in Toronto & GTA: drain, waste, and vent (DWV), supply, and fixture stub-outs for new bathrooms, basements, kitchens, and laundry rooms.
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- Basement Bathroom Rough-In Plumbing Cost in Toronto (2026): What You Pay With and Without Existing Stubs
Basement bathroom rough-in in Toronto: $3,500–$6,500 with existing stubs, $6,500–$9,500 gravity slab break-in, $8,500–$13,500 with new ejector pit.
- How to Hire a Licensed Plumber in Toronto (Checklist + Red Flags)
Hiring a plumber in Toronto: verify the Certificate of Qualification and City contractor licence, confirm insurance and WSIB, and spot the red flags to avoid.
Licensed, insured, reviewed Toronto plumbers
- Serving Toronto & the GTA since 2015 — over 1,200 completed jobs.
- Master plumber T95-4969603 · Plumbing contractor T94-4992639 · Drain contractor T87-4722944 · Building renovator T85-4728632 · Plumbing license FI6216638.
- 4.9-star Google rating from 320+ reviews. 400+ HomeStars reviews (Best of 2019–2025). BBB-accredited.
- Same-day and after-hours dispatch across Toronto, Etobicoke, North York, Scarborough, York, Mississauga, and Burlington.
25-year workmanship warranty
Every job Tornado Plumbing & Drains completes in Toronto and the GTA — repair, install, replacement, drain work, sewer work, fixture work — is backed by a 25-year workmanship warranty. The written terms are provided with every quote. If our work fails within 25 years of the install date, we come back and make it right.
Matching a new sink to your existing rough-in
The hard part of a sink swap is rarely the sink itself — it's whether the new bowl depth, drain location, and faucet hole spacing line up with the cabinet, countertop cutout, and the rough-in already in the wall and floor. A deeper undermount or farmhouse basin can drop the tailpiece below the existing P-trap arm, and switching from a 3-hole to a single-hole faucet leaves open deck holes that need a cover plate or escutcheon. We measure all of that before disconnecting anything so the finished connection is leak-free and code-compliant, not just snug. If you're putting a new faucet on the new sink, we can handle that in the same visit — see faucet repair and replacement.
Signs your sink needs replacing — or that a swap just went wrong
- A cracked or chipped cast-iron or porcelain basin, or a stainless bowl with rust-through at the drain that no longer holds water
- The new sink you bought doesn't sit flush — the cutout is too small for the lip, or an undermount won't clamp tight to the countertop underside
- Drain alignment is off: the new tailpiece sits higher or lower than the existing trap arm, so the P-trap leaks or won't thread up
- Old quarter-turn or compression shutoffs under the sink are seized, weeping, or won't fully close to let you change the faucet
- Supply lines are kinked, undersized, or corroded brass, and the new faucet uses different connector sizes
- You're moving from a drop-in to an undermount (or adding a second bowl or garbage disposal) and the plumbing has to be reconfigured
- Persistent musty smell or swollen cabinet base from a slow drain or supply leak that's been wicking into the vanity or kitchen cabinet
What's included
- On-site check of the existing cutout, cabinet space, rough-in drain height, and faucet hole layout to confirm your new sink and faucet will fit before we disconnect anything
- Full removal and safe disposal of the old sink, plus any old faucet, basket strainer, or garbage disposal being replaced
- Setting and securing the new sink — drop-in clip mount, undermount clamps and adhesive, or vanity-top install — sealed with mildew-resistant silicone
- Reconnecting or replacing supply lines, shutoff valves, faucet, basket strainer, drain trim, P-trap, and garbage disposal so every joint is leak-tested
- Code-compliant trap and venting connections, with garbage disposal electrical confirmed where applicable
- Cleanup of the work area, removal of old fixtures, and a final fill-and-drain test on both the supply and drain side
- Written 25-year workmanship warranty on the installation
When sink work is the right call:
- Replacing a damaged or stained sink.
- Renovating the kitchen or bathroom.
- Adding a sink in a basement, laundry, or wet bar.
- Switching from drop-in to undermount.
- Upgrading from single-bowl to double-bowl (or reverse).
- Replacing alongside a faucet or countertop installation.
Sink installation cost
Pricing depends on sink type (drop-in, undermount, farmhouse), whether it is supplied or not, and what other work happens at the same time. Drop-in replacements stay in the lower range. Farmhouse and undermount installs are higher because of cabinet work and seal detail.
What to share when you call
- Sink type and size.
- Whether the sink is on hand or being supplied.
- Whether faucet, garbage disposal, or shutoff replacement is part of the scope.
- Cabinet style (open, vanity, custom).
- Photos of the existing sink and supplies.
- Renovation timing if part of a larger project.
Toronto context
Sink installs in Toronto kitchens and bathrooms hinge on the rough-in. Pre-1980 cast-iron sink drains often need replacement at the same time — the new sink connects to a new branch in PVC, not a cobble of cast-iron and ABS adapters that leak two years later.
What to confirm before approving sink work
- Shutoffs and supply lines should be inspected — old ones often need replacement.
- Drain alignment should be verified before the new sink is set.
- Final installation should be leak-tested under sustained flow.
Useful info on the call: sink type, supply readiness, and other fixtures involved.
Frequently asked questions
Can I replace my drop-in with an undermount?
Yes if the countertop supports it. Solid surface, stone, or laminate countertops have different requirements. Tile countertops often do not work well with undermount.
Do I need a new faucet at the same time?
Often yes — faucet hole spacing and configuration may not match between old and new sinks. Replacing both at the same time is usually cleaner.
Will the existing P-trap fit?
Usually with adjustment. New sink heights and drain locations sometimes require new trap fittings.
Can I install a garbage disposal at the same time?
Yes. Add it to the booking so the disposal mounting and electrical are ready.
How much does sink installation cost in Toronto?
Drop-in sink replacement starts from $280, with the final price depending on the sink type, whether the supply lines and shutoffs need replacing, and any drain re-alignment. We diagnose the connection first and quote in writing before any work begins, so there are no surprises. Book online or call 647-784-8448 for a firm number.
Do you install kitchen sinks I bought myself?
Yes. We install customer-supplied kitchen, bathroom, vanity, and laundry sinks across Toronto and the GTA, including drop-in, undermount, and farmhouse styles. We confirm the new sink fits your existing drain alignment and cabinet before installing, and handle the faucet, supply lines, shutoffs, and P-trap as part of the connection.
Related services
Sink Installation & Replacement: real customer reviews
What customers say about our sink installation & replacement work, in their own words, straight from their Google reviews.
Sharon Muszynski
May 2025“I highly recommend Serhiy. I have used him several times, and he always does quality work. He recently replaced a toilet, faucet, and house shut-off valve, all of which had leaks and were faulty. He knows what he is doing - He is licensed, experienced, efficient, and pays attention to details. His pricing is very fair, and unlike some others, the price doesn't go up based on the area you live in. All this is hard to find in professionals. Someone honest (he won't fix things that don't need repair to create work) and who takes pride in a job well done. I will definitely call him again for future plumbing needs.”
Most relevant to Plumbing Repairs & Installations in Toronto & the GTA.
Google place photo: Tornado Plumbing & Drainslorraine wood
August 2022“Tornado Plumbing and Drains did an excellent job replacing my old drains and correcting some very old plumbing in my old house in only 2 days. Peter was very thorough in evaluating and explaining in detail the problems with the drains and how they would be repaired. He was extremely patient in answering all of my concerns. The team showed up on time, protected the work areas and did an excellent job with the final clean-up. They are assisting me with the rebate for the valve also. The cost for the work was very reasonable and several thousand dollars less than two other companies. I have already recommended Tornado to several friends and recommend them without reservation.”
Most relevant to Rough-In Plumbing in Toronto & the GTA.
Google place photo: Tornado Plumbing & DrainsJohn Donahue
October 2022“Peter was very thorough in going about his work, both inside and outside the home. Very polite, very detailed and very helpful.”
Most relevant to Rough-In Plumbing in Toronto & the GTA.
Google place photo: Tornado Plumbing & DrainsAuthoritative sources for this service
Public references — City of Toronto programs, federal guidelines, and standards bodies — used for the rules and figures cited on this page.
- CSA B125.3 — Plumbing fittings(standard)
- City of Toronto — Priority Lead Water Service Replacement Program(city)
- Ontario Building Code — Part 7: Plumbing Services(regulator)
- City of Toronto — Combined sewers and basement flooding(city)
- City of Toronto — Plumbing permits(city)
- City of Toronto Sewer Use Bylaw — Chapter 681(city)
Other services homeowners often compare with this one
If your situation could fit one of these adjacent services instead, open the page that matches more closely before you book.
Fast answers before you call
Can I replace my drop-in with an undermount?
Yes if the countertop supports it. Solid surface, stone, or laminate countertops have different requirements. Tile countertops often do not work well with undermount.
Do I need a new faucet at the same time?
Often yes — faucet hole spacing and configuration may not match between old and new sinks. Replacing both at the same time is usually cleaner.
Will the existing P-trap fit?
Usually with adjustment. New sink heights and drain locations sometimes require new trap fittings.
Can I install a garbage disposal at the same time?
Yes. Add it to the booking so the disposal mounting and electrical are ready.
Book Sink Installation & Replacement today.
Tornado Plumbing & Drains handles Sink Installation & Replacement across Toronto and the GTA. Call 647-784-8448 or book online for a clean diagnosis, written scope, and the 25-year workmanship warranty on every install and repair.