What it costs in the GTA
| Job | Typical range |
|---|---|
| Drain snaking, single fixture | $150–$300 |
| Main line clearing or hydro-jetting | $300–$700 |
| Sewer camera inspection | $200–$400 |
| Leak or pipe repair, typical | $250–$1,500 |
| Main drain or sewer line repair or replacement (private side) | $3,000–$8,000 |
| Licensed plumber, hourly | $120–$180/h |
Before HST. After-hours calls, finished basements that need opening up, and digging under driveways or mature trees push prices up. Ranges where published GTA and Ontario sources overlap, checked November 2026. Not a quote.
Rebates, permits & rules
- In Toronto, your sewer line is split at the property line: the City owns the part under the street, you own the part from the property line to the house. Call 311 for a blocked main drain. City staff check the City side with a camera through your cleanout, and fix it at no cost if the problem is theirs.
- Plumbing is a compulsory trade in Ontario: the person doing the work must hold a plumber's certificate of qualification or be a registered apprentice under one. Ask for the number.
- Replacing a drain or sewer line, or rerouting pipes, usually needs a building permit and inspection from your city.
- Adding a backwater valve or sump pump? Toronto's Basement Flooding Protection Subsidy can cover most of it. See the basement waterproofing guide.
- Signed the contract at your home? Ontario gives you 10 days to cancel most contracts signed there, for any reason.
What a complete quote includes
If any of these aren't on your quote, ask. Missing doesn't mean it's wrong, but it should be in writing.
- What's blocked or leaking, and how they found it (camera, test, visual)
- Method: snake, hydro-jet, spot repair, liner or full replacement
- Length and depth of pipe being replaced, and the pipe material
- Which side of the property line the problem is on
- Building permit and inspection, if needed, and who pulls it
- Digging, concrete, landscaping or drywall repair: included or extra
- A copy of the camera video
- Licensed plumber's certificate number
- Warranty on the repair, in writing
- A full sewer replacement quoted without a camera inspection
- No video or photos of the problem
- Main line work in Toronto with no mention of checking the City side first
- Restoration (concrete, lawn, drywall) left off the quote
- Price only by the hour with no estimate of hours
- One slow fixture is usually a snake job. Several drains backing up at once points to the main line.
- Blockages that keep coming back every few months: get a camera inspection before paying for another clearing.
- Tree roots in a clay or cast-iron line: clearing buys time; a spot repair or new line fixes it.
- A single cracked or offset section: a spot repair can cost far less than a full line.
- Collapsed or badly bellied pipe along its length: replacement, open trench or trenchless.
5 questions to ask before you sign
- Can I see the camera footage, and where exactly is the problem?
- Is it on my side of the property line or the City's?
- Why this method instead of a spot repair or trenchless?
- Does the price include the permit and putting my yard, driveway or wall back?
- What happens to the price if you find more damage once you open it up?
Paste your quote into ChatGPT, Claude or Gemini with this prompt:
I'm a homeowner in [city], Ontario. Here is my plumbing or drain repair quote: [paste]. List what it includes and leaves out (how the problem was found, camera footage, method, pipe length and material, which side of the property line, permits, digging and restoration, licensed plumber, warranty), flag anything vague, and give me 5 questions to ask before I agree. Don't guess a fair price.
Or skip the copy-paste: our free Quote Checker already knows what a plumbing & drain repair quote should include, and compares the price with real GTA ranges.
Common questions
How much does it cost to unclog a main drain in Toronto?
Clearing a main line by snaking or hydro-jetting usually runs about $300–$700. A camera inspection to find the cause is typically another $200–$400.
Who pays to fix a blocked sewer line in Toronto?
It depends where the problem is. The City is responsible for the part under the street and you're responsible for the part on your property. Call 311 first so the City can check its side.
How much does sewer line replacement cost in the GTA?
Repairing or replacing the private side of a main drain or sewer line typically costs about $3,000–$8,000, depending on length, depth and what has to be dug up and restored.
Do I need a licensed plumber in Ontario?
Yes for paid plumbing work: plumbing is a compulsory trade, so the person doing it needs a certificate of qualification or must be a registered apprentice working under a licensed plumber.