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Toronto homes built before the mid-1950s may have a lead water service pipe, according to the City of Toronto. You can check the pipe where it enters your water meter, which is usually in the basement: lead is grey, scratches easily and doesn't sound hollow when tapped. The City offers free lead testing, and it replaces the City-owned section of the pipe, but the section from the property line into the house is the homeowner's to replace, and the City doesn't publish a price for that work, so get several contractor quotes.
Quality Inspections does not test water for lead. This guide explains how to check, test and replace a lead service in Toronto and the rest of the GTA.
Which Toronto Homes Have Lead Water Pipes?
Toronto homes built before the mid-1950s are the ones most likely to have a lead water service pipe. The City of Toronto says apartment and other buildings with more than six units do not have lead service pipes, whatever their age.
The water service is the pipe that runs from the watermain under the street to your house. Lead can also come from other places inside a home. The City lists:
- Lead solder used on plumbing before 1990
- Leaded-brass fixtures such as faucets and valves
- Water pipes in older homes
Nationally, Health Canada notes that lead was an acceptable pipe material under the National Plumbing Code of Canada until 1975, so older homes and neighbourhoods are more likely to have it.
The water leaving Toronto's treatment plants does not contain lead. The lead gets in on the way to your tap, which is why the age of the house and its pipes matters.
Why Is Lead in Drinking Water a Concern?
Lead in drinking water is a concern mainly for young children and pregnant people, because it can affect brain and nervous system development. Toronto Public Health says lead exposure, "even at low levels," can affect children's brain and nervous system development, and that lead "can cross the placenta."
Health Canada's drinking water guideline for lead is a maximum acceptable concentration of 0.005 mg/L (5 µg/L), measured at the tap. According to the Guidelines for Canadian Drinking Water Quality, lead levels should also be kept "as low as reasonably achievable," because science can't identify a level below which lead has no health effects. Health Canada lowered the limit from 0.01 mg/L, set in 1992, to 0.005 mg/L in March 2019.
Ontario's regulated drinking water standard is higher. The City of Markham and Halton Region both state the Ontario standard as 0.010 mg/L (10 µg/L).
The service pipe matters most. Health Canada's technical document says lead service lines "can contribute 50–75% of the total lead at the tap after extended stagnation times."
How Can You Tell If You Have a Lead Pipe?
Look at the pipe that comes through the basement floor or wall and connects to your water meter. The City of Toronto says it may be lead if it's "grey, scratches easily and does not sound hollow when you tap it." Halton Region adds two quick checks: scratch it gently with a coin, and hold a magnet to it. Lead is soft and won't attract a magnet. Galvanized steel will.
| Pipe material | How to identify it | Era used | Concern |
|---|---|---|---|
| Lead | Soft, dull grey; scratches easily with a coin; not magnetic; doesn't sound hollow when tapped (Toronto, Halton) | Toronto: homes built before the mid-1950s. Peel: before 1960. Markham: before 1953 | Releases lead into drinking water; Health Canada's limit is 5 µg/L |
| Galvanized steel | Grey and magnetic (Halton) | Older homes; ask a licensed plumber | Doesn't contain lead itself, but the City of Toronto counts it as substandard and replaces its own galvanized services with copper (Toronto) |
| Copper | Copper-coloured; not magnetic | Markham says houses built after 1953 generally used copper (Markham) | No lead in the pipe, but joints may have lead solder if done before 1990 |
| PEX / plastic | Plastic tubing; not metal | Markham says many newer homes use PVC | Halton says plastic pipes don't contain lead |
If you're not sure, the City of Toronto suggests three routes:
- Hire a licensed plumber to inspect the pipe, usually from the basement near the meter.
- Check property records, or ask the owner if you rent.
- Call 311 to ask the City to check its records. The City says this can take up to 30 business days.
Remember that the pipe at the meter only shows the private side. The City-owned section under the boulevard can be a different material.
How Do You Get Free Lead Testing From the City of Toronto?
The City of Toronto offers free lead testing to residents of homes built before the mid-1950s. According to the City's lead testing page, as of October 2026:
- Register for a kit by calling 311.
- Pick up the kit at one of four Toronto Public Health offices (5100 Yonge St., 1530 Markham Rd., 850 Coxwell Ave., or 399 The West Mall), Monday to Friday, 8:30 a.m. to 4:30 p.m.
- Take the sample using the instructions in the kit.
- Drop it off at 30 Dee Ave., 399 The West Mall or 850 Coxwell Ave.
- Get results by mail within 30 days of the Toronto Water lab receiving the sample.
Questions go to the City's water quality line at 416-392-2894.
A test result shows lead at the tap on that day. It doesn't tell you what the service pipe is made of, so if you have an older home, confirm the pipe material too.
What Does the City of Toronto Replace, and What Do You Pay For?
The City of Toronto replaces the section of the water service from the watermain to the property line, and the homeowner is responsible for the section from the property line into the house. The City runs two programs, and both expect you to deal with your side.
| Section of the service | Who owns it | What the City of Toronto does (as of October 2026) |
|---|---|---|
| Watermain to property line | City of Toronto | Replaces lead or galvanized steel pipe with copper during planned road, sewer and watermain work, about 3,000 substandard pipes a year (Capital program) |
| Watermain to property line, on request | City of Toronto | Under the Priority Lead Water Service Replacement Program, replaces a lead City-side pipe if you commit to replacing your side, aiming to finish within 12 weeks of approval |
| Property line into the house | Homeowner | Not replaced by the City. The City "strongly recommends" replacing it in homes built before the mid-1950s |
The priority program gives you two ways to apply:
- Option one: Hire the City's contractor to do both sides at once. You pay for the private side, and the City encourages you to get several independent quotes.
- Option two: Hire your own contractor for your side first, then apply for the City's side. You attach proof, such as a contractor or licensed plumber invoice, or a home inspector's report confirming the private side isn't lead.
The City says applications can take up to two weeks to process, and permanent concrete or asphalt restoration can follow 18 to 24 months later. You also get a faucet filter for lead removal before the work starts.
Replacing both sides matters. Health Canada's technical document says galvanic corrosion from partial lead service line replacement "has also been shown to increase concentrations," and that the best approach is to "remove the full service line."
How Much Does It Cost to Replace a Lead Water Service in Toronto?
The City of Toronto doesn't publish a price for replacing the private side of a lead water service, so the only reliable number is a contractor quote. Quotes will vary with the length of the run, what's in the way (a driveway, trees, a finished basement) and how the contractor does the work.
Ask each contractor:
- Whether the quote includes the connection inside the house and restoring the basement floor or wall
- Whether they'll coordinate with the City's contractor so both sides are done together
- Whether any permits and landscaping restoration are included
On financing, the City's 2025 lead mitigation report only lists past Council decisions, including a 2014 direction to develop a self-funded loan program and a 2017 case-by-case option through Toronto Renovates. None of the City's current lead pages we reviewed describe a financing program for the private side as of October 2026, so ask 311 what's available.
The same report says the City replaced 1,035 City-owned lead services in 2025 and that approximately 13,664 remained at the end of 2025.
How Can You Reduce Lead Exposure Until the Pipe Is Replaced?
Flush the cold tap, use cold water for drinking and cooking, and use a filter certified for lead removal. The City of Toronto recommends:
- Flush the cold tap for at least five minutes if water hasn't been used for a few hours.
- Use cold water for drinking, cooking and baby formula, because lead dissolves more readily into hot water.
- Filter with a filter certified to NSF-053 for lead removal (commonly written NSF/ANSI 53), and replace cartridges on schedule.
Halton Region adds that boiling water will not reduce lead levels. Health Canada's technical document notes that flushing alone hasn't been found to sufficiently reduce lead exposure in schools, so don't rely on flushing alone.
Toronto also offers a faucet filter rebate for eligible households: a child under six or a pregnant person in the home, a single-family home, duplex or triplex, and household income under $50,000. Since 2014, the City has added phosphate to treated water to form a protective coating inside pipes.
How a Home Inspection Handles Lead Pipes
A home inspection can look at the visible water service pipe where it enters the house, but it can't test water or see the buried pipe. Quality Inspections does not test for lead. During a pre-purchase inspection, the inspector looks at:
- The pipe entering at the water meter, and whether its appearance is consistent with lead, galvanized steel, copper or plastic
- Visible supply piping in the basement, including older galvanized runs
- Signs of past plumbing repairs, leaks or mixed materials
What's out of scope: the pipe under the lawn and the City-owned section, water quality testing, and lead content in solder or fixtures. If the pipe looks like lead or you're unsure, call a licensed plumber and book the City's free lead test.
Our first-time buyer checklist for Toronto covers other questions to ask about older homes.
Lead Pipes Across the GTA: What Peel, Halton and York Say
Each GTA municipality draws the line between public and private pipe slightly differently, and the age cut-offs vary. As of October 2026:
- Toronto. Homes built before the mid-1950s may have lead services; the City replaces its side and offers free testing. See our Toronto home inspection page.
- Peel Region (Mississauga, Brampton). Peel says homes built before 1960 might have lead in the water service, and the owner is responsible for the pipe from the property line in. Peel suggests replacing your private pipe when the Region replaces watermains in your area. Peel offers free lead testing for eligible homes built before 1960; book at 905-791-7800, ext. 4685.
- Halton Region (Oakville, Burlington). Halton encourages owners of homes built before 1975 to check for lead. It says its cast iron watermain program, completed in 2007, replaced all known lead public service lines. The owner is responsible from the curb stop into the home.
- York Region (Markham, Richmond Hill, Vaughan). The City of Markham says lead was used for residential service lines before 1953 and that all known lead service lines up to the property line have been replaced. Private lines and inside plumbing may still contain lead. Check with your local municipality for Richmond Hill and Vaughan.
Frequently Asked Questions
How do I know if my Toronto house has a lead water pipe?
Check the pipe entering your water meter: the City of Toronto says lead is grey, scratches easily and doesn't sound hollow when tapped. A licensed plumber can confirm it, or you can ask 311 to check City records.
Is lead testing free in Toronto?
Yes, as of October 2026. Call 311 to register, pick up a kit at a Toronto Public Health office, and get results by mail within 30 days of the lab receiving your sample.
Who pays to replace a lead service pipe in Toronto?
The City of Toronto pays for the section from the watermain to the property line. The homeowner pays for the section from the property line into the house.
What is the safe level of lead in drinking water in Canada?
Health Canada's maximum acceptable concentration is 5 µg/L (0.005 mg/L), and it recommends keeping lead as low as reasonably achievable. Ontario's regulated standard is 10 µg/L.
Are galvanized pipes a problem?
Galvanized steel doesn't contain lead, but the City of Toronto treats it as substandard and replaces City-side galvanized services with copper. A licensed plumber can tell you whether older galvanized piping in a house should be replaced.
Does a home inspector test for lead in water?
Quality Inspections does not test for lead. An inspection notes the visible pipe at the meter; for testing, use the City's free program or an accredited lab.
Do condos have lead service pipes?
The City of Toronto says buildings with more than six units do not have lead service pipes. Smaller older buildings and houses may.
Sources
- Lead in drinking water — City of Toronto
- Lead testing for residents — City of Toronto
- Capital Water Service Replacement Program — City of Toronto
- Priority Lead Water Service Replacement Program — City of Toronto
- Toronto Water Annual Lead Mitigation Report 2025 — City of Toronto
- Health impacts of lead — Toronto Public Health
- Guidelines for Canadian Drinking Water Quality: Lead — Health Canada
- Guideline Technical Document: Lead (full document) — Health Canada
- Health Canada sets new guideline for lead in drinking water — Health Canada
- Private-side water service — Peel Region
- Water testing for lead — Peel Region
- Keeping drinking water safe — Halton Region
- Tap water quality and testing — City of Markham
Book an Inspection
A pre-purchase inspection includes the visible plumbing and the pipe at the water meter, with a digital report and photos within 24 hours. Call (416) 899-8116 or send the property details to book.