Water Damage Markham
Water damage Markham homes suffer is usually a different animal from the old-house flooding downtown: newer builds, finished lower levels, sump pumps and big roof areas.
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What is different about Markham
Much of Markham is far newer than the older parts of Toronto. In Milliken, Cornell, Berczy and Wismer, the lower levels of those houses are often fully finished with theatre rooms, bedrooms and bathrooms. A leak in a finished lower level costs far more to repair than the same leak in an unfinished basement, because there is more drywall, flooring and cabinetry to dry or replace.
Older pockets have their own issues. Unionville's heritage streets and old Markham Village have century homes with stone foundations and added basements. Thornhill's mid-century streets have original clay and cast iron drains. Where the Rouge River and Don River branches run through valleys, ground water can be high in wet seasons.
The City's plumbing protection program
The City of Markham runs a Private Plumbing Protection Rebate Program for eligible work on private plumbing that reduces basement flooding risk, including backwater valves, weeping tile disconnection with sump pump installation, and lateral repair. Check markham.ca for the current rules, since amounts and conditions have changed. The City has also posted a warning about phone scams connected to the program, so deal only with contractors you called yourself.
That work reduces future risk. If water is already in the building, call us first for removal and drying, then think about prevention once the structure is dry.
Water damage sources we see in Markham
- Sump pump failure in storms or power outages
- Supply line and fridge water line failures behind finished walls
- Roof and ice dam leaks into second-floor ceilings
- Water heater tanks in utility rooms
- Window well and grade problems around newer foundations
- Sewer backup in older neighbourhoods
When you call us in Markham
- AnswerA person takes your call at any hour and notes the address, the cross streets and what is wet.
- CrewWe bring extraction and drying gear sized to a finished lower level or a full main floor.
- AssessFree assessment, moisture mapping and a written scope and price.
- DryEquipment is monitored until readings are right. Drying usually takes 3 to 5 days.
- DocumentPhotos, readings and removed-material lists are put together for your insurance adjuster.
Prevention once the structure is dry
After a loss, many owners want to know how to stop a repeat. We can tell you what we saw: where water entered, how the grade runs around the foundation, whether the sump pit was working and whether the plumbing that failed is likely to fail elsewhere. For sump pumps, a battery backup and a working alarm are the usual conversation. For window wells, covers and clear drainage matter. For sewer backup, a licensed plumber can assess a backwater valve, and the City's rebate program is worth reading first.
Prevention work is separate from our own job. Our job is to get the building dry and documented, and to leave you with a clear picture of what happened.
What Markham's Private Plumbing Protection Rebate lists
The City of Markham's Private Plumbing Protection Rebate Program, under By-law 2020-45, lists a maximum rebate for each measure rather than one overall figure. An indoor backwater valve on the sanitary or storm lateral is listed at one thousand seven hundred fifty dollars, and an outdoor valve at two thousand dollars. Disconnecting weeping tile from the sanitary lateral and installing a sump pump is listed at five thousand dollars, a gravity disconnection to the storm lateral at three thousand dollars, and relining or repairing a lateral at two thousand five hundred dollars. These are the City's program limits, not our prices (checked November 2026).
The program is separate from the water removal and drying this page describes. If you are thinking about it after a flood, start with the City's own page, because the work has to be cleared by the Environmental Services Department before it is installed.
Markham FAQ
Is Markham part of Toronto?
No. It is a separate city in York Region, with its own City hall and permit office, so permits for repairs come from Markham.
Do you work in condos and townhouse complexes?
Yes. We coordinate with the property manager so we can reach shut-off valves and shared stacks.
Will you tell me what my policy pays?
No. We work with your insurance adjuster and document everything, and your insurer decides what the policy pays.
Request a quote
Tell us what you need and we will get back to you. In a hurry? Calling is fastest.