Wet Basement Mississauga
A wet basement Mississauga owners deal with may be groundwater, creek-driven surface water or a sewer connection, and the 2024 summer storms showed how quickly all three can combine.
Fully licensed and insured
Open 24 hours, 7 days
What happened in 2024
On July 16, 2024, Toronto Pearson recorded 97.8 mm of rain, more than a month of rain in one day. On August 17, 2024, Pearson recorded 128.3 mm, its rainiest day on record, and Mississauga took some of the worst of it. The City responded with stormwater work, a city-wide Flood Mitigation Action Plan and two rebate programs for eligible prevention work, described on mississauga.ca/flood. If you suffered basement flooding, the City asks that you call 311.
We do not replace any of that. We handle the private side of the loss: removing water, drying and documenting.
Which part of Mississauga are you in?
Cooksville and Mineola sit along Cooksville Creek. Port Credit and Lakeview are low and close to the lake. Streetsville and Meadowvale sit by the Credit River. Erin Mills, Churchill Meadows and Lisgar are newer areas with finished lower levels and sump pumps. Malton has older bungalows. Each area has its own risk, and we ask your street and building type on the first call.
Sewers in Peel are run by the Region and storm drainage by the City, so the right office to call can depend on what failed. Peel also lists a backwater valve rebate on its site, with its own conditions.
Signs your Mississauga basement needs attention
- Standing water after any storm
- Damp patches on a finished wall
- A floor drain that gurgles or holds water
- A sump pump that runs constantly
- Musty odours near carpets
- Staining on drywall at floor level
What we do
- Call and planA person answers and we plan the crew.
- Free assessmentWe measure moisture and look for the entry point.
- Scope and price in writingYou decide whether to proceed.
- Remove and dryWet finishes come out, drying equipment goes in and readings are taken at each visit.
- Give you the recordsWe prepare photos and readings for your insurance adjuster.
Condos and townhouse complexes
Mississauga has many condominium towers around the City Centre and townhouse complexes across Erin Mills, Meadowvale and Cooksville. In a tower the lower level may be a garage, a locker room or a mechanical room, and water there can reach several owners. We work with the property manager so we can reach the shut-offs and move equipment safely.
We record the source and the pattern of the water, which helps the people responsible for the building sort out who deals with what.
What the City asks you to report
After a flood, the City of Mississauga asks residents to report basement flooding by calling 311, so its records reflect what happened on your street. Reporting helps the City understand where its stormwater and sewer systems struggle. Make the report, then call us for the work inside your home. The two steps are separate and both worth taking.
Sump pumps, downspouts and permits in Mississauga
A wet basement in Mississauga can sometimes be addressed outside the walls. The City's rebate list includes downspout disconnection at one hundred twenty-five dollars each, up to five hundred dollars, and a sump pump at up to six thousand dollars, as part of a seven thousand five hundred dollar property maximum. On permits, the City lists none for damp-proofing a basement or for sump pumps, but requires one for a storm lateral backwater valve and for foundation drain capping; call 311 (905-615-4311 outside the city) to confirm for your job (checked November 2026).
Mississauga wet basement FAQ
Is Mississauga's rebate available to me?
Rules are set by the City and may change, so read the current terms at mississauga.ca/flood or ask 311.
What should I do first?
Make the area safe, photograph the damage and call us.
Do you work on weekends?
Yes, every day.
Do I need a permit to damp-proof a basement in Mississauga?
The City of Mississauga lists damp-proofing a basement as work that does not need a building permit, and lists no permit for sump pumps either. A backwater valve and foundation drain capping do need one. Call the City's 311 line to confirm for your project.
Request a quote
Tell us what you need and we will get back to you. In a hurry? Calling is fastest.