HAUSE SEWER NETWORKsewers@hause.ca403-679-3100
WaterMainReplacement.ca
City program · Hamilton

Hamilton: lead water service replacement

Hamilton lead water pipe replacement: property-line ownership, the City side in 12–16 weeks, the $3,000 water-bill loan, permits and testing.

Conceptual illustration of city and owner work windows with corresponding service sections
Illustrated field guideCity and owner work windows with corresponding service sectionsHamilton · permit · coordinated work windows
Short answer

Hamilton owners own the water service from inside the home to the property line; the City owns it from there to the main. When you replace your private lead portion under permit, the City replaces the public portion, which it says takes 12 to 16 weeks. A $3,000 loan, repaid on the monthly water bill over up to ten years, can help pay for the private side (as checked September 2026).

Key takeaways
  • The City replaces its portion after the owner replaces the private lead pipe under a water service replacement permit.
  • Conditions include a properly installed meter, removal of any shared-service interconnection and an inspection of the private work.
  • The lead service loan is $3,000, interest-bearing, and repaid through the monthly water bill over a maximum of ten years.
  • Owners who qualify for LEAP or OESP can get the loan interest-free unless payments default.
  • Hamilton estimates about 20,000 homes built before 1955 may have a lead water service.
A new white PVC sewer pipe laid on granular bedding in a trench
IllustrationA new PVC lateral on proper granular bedding, checked for grade before backfill.
Partial versus full replacement of a lead water serviceTwo sections. In the top one only the utility side of a lead service has been replaced: new pipe runs to the property line, a new joint connects it to the old lead pipe, and the lead on the private side stays in the ground; disturbing it can release lead particles into the water for a period afterwards. In the bottom one both sides are replaced, so there is no lead between the main and the house.PARTIAL REPLACEMENT — ONE SIDE ONLY NEW PIPE, UTILITY SIDELEAD LEFT IN PLACE NEW JOINT AT THE CUT · DISTURBED LEAD CAN SHED PARTICLES MAINHOUSEFULL REPLACEMENT — BOTH SIDES TOGETHER NEW PIPE, UTILITY SIDENEW PIPE, PRIVATE SIDENO LEAD LEFT FROM THE MAIN TO THE HOUSE MAINHOUSE ILLUSTRATIVE · HEALTH CANADA: PARTIAL REPLACEMENT CAN LEAVE LEAD ISSUES · FLUSH AND FILTER AFTER WORK
Fig. 1Partial versus full lead service replacement: replacing only one side leaves lead in the ground and a disturbed joint, while full replacement removes lead from the main to the house.

01 /Who owns which part of the service in Hamilton?

The City of Hamilton says you own the water service pipe from inside your home to the property line, and the City owns and maintains the pipe from the property line to the water main. It estimates about 20,000 homes built before 1955 may have a lead water service. Hamilton has added orthophosphate to its water for corrosion control since November 2018, which reduces lead release but does not remove the pipe.

Parts of a house water service from the main to the meterA section from the street to the basement. The water main runs under the street. A corporation stop taps the top of the main. The service line runs under the boulevard to a curb stop, a buried valve reached through a curb box from the surface, near the property line. The private part of the service continues below frost to the foundation wall. Inside, the main shut-off valve comes first, then the water meter, then a pressure-reducing valve where one is fitted. The point where ownership changes is set by each utility. STREET BOULEVARD BASEMENT FROST DEPTH VARIES WATER MAIN ① CORPORATION STOPthe tap on the main ② CURB STOPCURB BOX TOTHE SURFACE PROPERTY LINE ③ SERVICE LINE, BELOW FROST COVERset locally ④ MAIN SHUT-OFF ⑤ METER ⑥ PRVTO FIXTURES UTILITY SIDE (TYPICAL) OWNER SIDE (TYPICAL) SECTION · ILLUSTRATIVE · EACH UTILITY SETSWHERE OWNERSHIP CHANGES — CONFIRM LOCALLY
Fig. 2The parts of a house service. Hamilton splits ownership at the property line.

Not sure what you have? The City offers a free Check Size and Type Inspection through 905-546-2489. It is worth booking before paying for quotes, because the size of your existing service also matters for flow in a larger or renovated house, which the low pressure guide explains.

02 /How does the City replace its side?

Hamilton's rule is sequential: when you replace the private portion of your lead water service, the City replaces the public portion. The City says this happens within 12 to 16 weeks once the conditions are met. Until then, the new private pipe is joined to the old lead public pipe, so filtering drinking water through that gap is sensible.

  1. Get a permit

    A water service replacement permit is required for the private work.

  2. Replace the private portion

    At the owner's expense, by a contractor, under the permit.

  3. Meet the conditions

    A properly installed meter, and any interconnection with a neighbour's shared service removed.

  4. Inspection

    The private work is inspected.

  5. City side

    The City replaces the public portion, which it says takes 12 to 16 weeks.

03 /How does Hamilton's lead service loan work?

Hamilton offers a $3,000 interest-bearing loan for the private side. The loan, including interest, is transferred to the owner's monthly water bill and repaid over a maximum of ten years. Households that qualify for LEAP (the Low-income Energy Assistance Program) or OESP (the Ontario Electricity Support Program) can get a zero-interest loan, which stays interest-free unless payments default.

  • Eligible owners: the owner or owners of the property, with property taxes current.
  • Eligible pipe: a water service substantially composed of lead.
  • Quote required: at least one quote from a licensed contractor.
  • Rate and fee: the City's live page did not list the current interest rate or application fee when checked; ask for them before applying.

The cost page sets the loan beside other cities' grants and rebates and shows the published cost figures that exist in Canada.

04 /Where do Hamilton residents get water tested for lead?

Hamilton's page says private laboratories can test for lead, and points residents to the Ontario Ministry of the Environment (1-800-565-4923) and to Public Health's Safe Water Info Line (905-546-2189). The City does not advertise a free household lead test. The lead testing guide explains sampling after water has stood in the pipe, and why one clean result does not prove a lead service is safe.

  1. Book the free Check Size and Type Inspection, or check the pipe at your meter with the Lead Water Line Check.
  2. Collect at least one written quote from a licensed contractor that states the method, length, depth and restoration.
  3. Apply for the loan if you want it, then obtain the water service replacement permit.
  4. After the private work passes inspection, confirm the date for the City side and keep filtering until it is done.

You can also request quotes through this site with a photo of the pipe at your meter. Hamilton's Water Storefront at 330 Wentworth St N handles program questions in person on weekdays.

05 /What should Hamilton owners watch for in quotes?

Because the City's replacement of its side depends on your private work passing inspection, the quote should make clear that the contractor will meet the City's conditions, not only lay pipe.

  • Permit: who obtains the water service replacement permit.
  • Meter: whether the meter installation meets the City's requirement, and who fixes it if not.
  • Shared services: whether any interconnection with a neighbour exists and will be removed.
  • Inspection: who books it, and whether the trench stays open until it passes.
  • Loan paperwork: help with the licensed-contractor quote the loan requires.

FAQQuestions people ask

Will Hamilton replace its part of my lead service?

Yes, once you replace the private portion under permit and meet its conditions. The City says the public side is then replaced in 12 to 16 weeks.

How is Hamilton's lead pipe loan repaid?

The $3,000 loan and its interest are added to your monthly water bill and repaid over a maximum of ten years.

Can the Hamilton loan be interest-free?

Yes for owners who qualify for LEAP or OESP; it stays interest-free unless payments default.

Does Hamilton check what my water service is made of?

Yes. A free Check Size and Type Inspection can be booked at 905-546-2489.

Where can I ask Hamilton about lead pipes in person?

At the Water Storefront, 330 Wentworth St N, on weekdays, or by phone at 905-546-2489.

Request quotes

Describe the problem once. Get a straight answer.

Describe the water-service issue and anything you already know — pipe material, affected taps, utility records and the scope you have been quoted. The HAUSE Sewer desk replies with next steps and, where available, a local contractor for the job.

Sewage backing up right now? Stop using water, keep people away from the water, and do not touch electrical equipment near it.

Tell us about the job

Free request. We read every one and reply by email or phone.

HAUSE Sewer is an independent network, not a contractor. See our privacy notice.

The HAUSE Sewer network

One sewer line, every angle.