01Flat, shingle, metal. Commercial and residential.
Roof Repair
- Roof leak repairs
- Emergency tarping
- Storm damage repair
- Shingle repairs & replacement
- Flat roof repairs (EPDM, TPO, Mod-Bit)
- Flashing repairs
- Drain issues
- Rooftop troubleshooting
Serving Mississauga
Roofing & Waterproofing in Mississauga
Mississauga was built in waves, postwar Applewood, 1970s Erin Mills, the Hurontario condo corridor, and each wave is failing on its own schedule. We know which wave your building belongs to before we quote it.
25+Years on GTA roofs
60 minEmergency response
Licensed& fully insured
GTARegion served
Our Services in Mississauga
What we do in Mississauga.
Four core services, each with bespoke local knowledge applied to Mississauga's specific building types and conditions.
01
02Below grade. Balcony. Terrace. Parking deck.
Basement Waterproofing
- Basement leaks
- Below-grade waterproofing
- Sump pump installation
- Balcony leaks
- Terrace leaks
- Underground parking waterproofing
- Crack injections
- Concrete slab leaks
0324 hours a day. On site within 60 minutes across the GTA.
Emergency Roof Repair
- Flooding response
- Storm & wind damage
- Fire-related roof & building repairs
- Insurance claim support
- Temporary protection & tarping
- Structural drying coordination
- Emergency rebuilds
04Comprehensive reports a lender will accept.
Roof Inspection
- Residential inspections
- Commercial roof assessments
- Industrial inspections
- Drone inspections
- Thermal imaging
- Moisture detection
- Forensic leak investigations
- Insurance reports
01Flat, shingle, metal. Commercial and residential.
Roof Repair
02Below grade. Balcony. Terrace. Parking deck.
Basement Waterproofing
0324 hours a day. On site within 60 minutes across the GTA.
Emergency Roof Repair
04Comprehensive reports a lender will accept.
Roof Inspection
Why Blue Knight
Why Mississauga property owners choose us.
01Emergency
60-Min Response
Active leaks anywhere in the GTA get same-day priority dispatch. We answer at 2am, including weekends and holidays.
02Coverage
Licensed & Insured
Complete liability coverage on every job. All work is documented and you are protected from start to finish.
03Transparency
Written Reports Every Time
Inspection reports, repair documentation, and scope estimates in writing before we touch anything.
04Experience
25+ Years on GTA Roofs
We've worked on tens of thousands of GTA buildings. We recognise failure patterns before they become emergencies.
05Diagnosis
Find the Cause First
We trace the actual failure mode before proposing a scope, and we quote what that scope requires rather than inventing urgency.
“Tract housing rewards pattern recognition. When we've already fixed the same failed wall flashing on six houses from the same Erin Mills builder, the seventh diagnosis is fast and the quote is accurate, and when a Lakeview basement leaks, we already know to ask about the water table before anyone mentions cracks. Twenty-five years of GTA work means Mississauga's construction waves are familiar territory for us, from Applewood bungalow to Hurontario high-rise. We still inspect every building individually. We just start from knowledge instead of guesses.”
01Emergency
60-Min Response
Active leaks anywhere in the GTA get same-day priority dispatch. We answer at 2am, including weekends and holidays.
02Coverage
Licensed & Insured
Complete liability coverage on every job. All work is documented and you are protected from start to finish.
03Transparency
Written Reports Every Time
Inspection reports, repair documentation, and scope estimates in writing before we touch anything.
04Experience
25+ Years on GTA Roofs
We've worked on tens of thousands of GTA buildings. We recognise failure patterns before they become emergencies.
05Diagnosis
Find the Cause First
We trace the actual failure mode before proposing a scope, and we quote what that scope requires rather than inventing urgency.
“Tract housing rewards pattern recognition. When we've already fixed the same failed wall flashing on six houses from the same Erin Mills builder, the seventh diagnosis is fast and the quote is accurate, and when a Lakeview basement leaks, we already know to ask about the water table before anyone mentions cracks. Twenty-five years of GTA work means Mississauga's construction waves are familiar territory for us, from Applewood bungalow to Hurontario high-rise. We still inspect every building individually. We just start from knowledge instead of guesses.”
Rated 5 out of 5Flat roof replacement on a commercial unit. Clean, fast, no surprises on the invoice. The crew left the site cleaner than they found it.
Rated 5 out of 5Blue Knight was, by far, the best. Responsive, ethical, totally professional — and their crew went above and beyond at no extra charge.
Rated 5 out of 5They installed a full new roof in one day. The crew worked around the house without us hardly knowing they were there.
1 / 3
Rated 5 out of 5
Flat roof replacement on a commercial unit. Clean, fast, no surprises on the invoice. The crew left the site cleaner than they found it.
Mississauga, ON·GuildQuality
Rated 5 out of 5
Blue Knight was, by far, the best. Responsive, ethical, totally professional — and their crew went above and beyond at no extra charge.
Toronto, ON·Google
Rated 5 out of 5
They installed a full new roof in one day. The crew worked around the house without us hardly knowing they were there.
North York, ON·HomeStars
Rated 5 out of 5
I emailed at 4 a.m. and spoke with someone that same day. Estimate and completed work all within one day. Pricing was fair, work was excellent.
Toronto, ON·Google
Rated 5 out of 5
Luciano did not try to sell me a new roof. Appreciated the honesty — he showed up when he said he would.
Etobicoke, ON·Google
Rated 5 out of 5
We had a leak diagnosed by two other contractors who could not find the source. Blue Knight found it on the first visit and fixed it the same week.
Scarborough, ON·Google
Rated 5 out of 5
Called after a storm damaged our roof. Someone was on site within hours, tarped everything, and had us fully repaired before the next rain.
Vaughan, ON·HomeStars
Rated 5 out of 5
Had a slow basement leak for years. Every other company just caulked it. Blue Knight found the actual source and did a proper waterproofing job. No issues since.
North York, ON·Google
Rated 5 out of 5
Our neighbours recommended them for a valley repair. Small job, but they treated it like it mattered — showed up on time, matched the shingles perfectly, and charged exactly what they quoted.
Richmond Hill, ON·HomeStars
1 / 9
GTA Roofing Projects Since 1999
Featured Projects.
Where We Work
Rooftops across the GTA.
From downtown Toronto to the 905 and beyond, one crew, one warranty, twenty-five years of GTA rooflines.
Toronto
Greater Toronto Area
Extended Service Area
Service availability may vary. Call (647) 383-8664 to confirm coverage for your area.
Where We Work
Rooftops across the GTA.
From downtown Toronto to the 905 and beyond, one crew, one warranty, twenty-five years of GTA rooflines.
Toronto
Greater Toronto Area
Extended Service Area
Service availability may vary. Call (647) 383-8664 to confirm coverage for your area.
Areas Served
Neighbourhoods & areas we serve in Mississauga.
We work across all areas of Mississauga. If you don't see your neighbourhood listed, we almost certainly cover it.
Port Credit
Streetsville
Meadowvale
Erin Mills
Clarkson
Lakeview
Applewood
Malton
Cooksville
Hurontario
City Centre
Churchill Meadows
Lisgar
Lorne Park
FAQ
Mississauga roofing questions.
Because those 1970s and 80s foundations got builder damp-proofing, a thin sprayed coating, rather than true waterproofing, and that coating has a service life the subdivisions are now reaching together. Combine an expired coating with Peel clay that holds water against the wall, and hydrostatic pressure finds its way in. It's an upgrade problem, not a defect in your specific house.
Yes, full coverage across the city, lakefront to the Brampton boundary. Response and scheduling are identical everywhere: Mississauga sits inside our standard GTA service zone, so emergency dispatch runs within 60 minutes and scheduled repairs typically book within two to five business days.
Yes. The Hurontario corridor carries a substantial stock of flat-roof condo, office, and retail buildings, plus below-grade parking structures. We handle membrane repair and replacement, parking-deck waterproofing, and scheduled inspections, with reports formatted for boards, property managers, and reserve fund planning.
You should be informed, not worried. The Cooksville Creek watershed has a documented flood history, and properties near it face higher groundwater and overland flow risk during major storms. A below-grade assessment tells you what your specific foundation and grading can handle, and targeted waterproofing plus backflow protection covers most of the risk.
Yes, through the City of Mississauga's building department at the Civic Centre on Burnhamthorpe. Structural roof work and foundation alterations need a permit; a like-for-like reroof generally does not. We determine which applies to your job before quoting it and we file the application ourselves rather than leaving it with you.
Since 1999, alongside the rest of our GTA service area. Mississauga rewards that kind of repetition more than most cities, because it was built in distinct waves and each wave fails on its own schedule. Knowing which decade a street belongs to tells us most of what to expect before anyone gets out of the truck.
In Depth
Clay, Creeks, and Construction Waves: What Makes Mississauga Different
Every city has a defining condition, and Mississauga's is the Peel clay plain. Clay soil sheds surface water badly and holds subsurface water stubbornly, which means foundations here work harder than the same foundations would in sandier ground east of Toronto. The city's drainage network, including Cooksville Creek, with its well-documented flood history, concentrates that water during major storms. Roofs feed the system too: every downspout that discharges beside a foundation wall in clay soil is quietly loading the basement below it.
That's why we treat roofing and waterproofing in Mississauga as one water-management problem rather than two trades. A wet basement diagnosis here starts at the eavestroughs and grading before anyone talks about excavation, and a roof assessment notes where the water goes after it leaves the roof. The building stock came in waves, postwar Applewood, 70s-80s Erin Mills and Meadowvale, 2000s Churchill Meadows, the Hurontario towers, and each wave interacts with the clay differently. We've worked on all of them.
One Standard Across a Very Large City
Mississauga's size attracts every kind of contractor, from excellent to briefly incorporated. Our answer to that market is consistency: the same diagnose-before-repair process we've run since 1999, on every call, in every neighbourhood. The visit starts with finding the actual failure, tracing the leak path, testing the theory, photographing the evidence, and the written estimate follows from what we found, not from what the truck happens to carry.
That documentation habit pays off in Mississauga specifically. Insurance claims after wind and water events move faster with photo-documented failure reports. Resale disclosures are cleaner when repairs come with paperwork. And for the condo corridor, board-ready reports turn a repair into a record the corporation can rely on for reserve planning. We never fabricate urgency, we don't sell replacements to roofs that need a $600 flashing repair, and every price is in writing before work begins.
Nearby Service Areas
Other areas we serve near Mississauga.
About Mississauga
What we know about buildings in Mississauga.
Mississauga sits on the Peel clay plain, and that single fact explains more service calls than any other. Clay drains poorly, holds water against foundations, and turns every heavy rain into a hydrostatic pressure test for whatever the builder put on the wall. Cooksville Creek's flood history is the dramatic version of the story; the quiet version plays out in thousands of Erin Mills and Meadowvale basements where 1970s and 80s builder damp-proofing, a thin coating that was never true waterproofing, is reaching the end of its life all at once.
The roofing story follows the same waves. Applewood and Cooksville carry postwar bungalows on their third shingle cycle. The vast tract subdivisions of Erin Mills, Meadowvale, and Lisgar are moving through their second, with builder-grade flashings and boots failing on a near-uniform schedule street by street. Port Credit and Lakeview mix older lakefront housing, with the high water tables that come with it, against new infill, while Streetsville's heritage core needs work that respects buildings the rest of the city doesn't have.
Then there's the vertical city: the condo and commercial corridor along Hurontario and around Square One, with a large stock of flat membrane roofs and below-grade parking structures that need commercial-grade assessment, not residential guesswork. We work across all of it, same diagnostic process everywhere, materials and methods matched to what the building actually is.
Tract housing rewards pattern recognition. When we've already fixed the same failed wall flashing on six houses from the same Erin Mills builder, the seventh diagnosis is fast and the quote is accurate, and when a Lakeview basement leaks, we already know to ask about the water table before anyone mentions cracks. Twenty-five years of GTA work means Mississauga's construction waves are familiar territory for us, from Applewood bungalow to Hurontario high-rise. We still inspect every building individually. We just start from knowledge instead of guesses.
About Mississauga
What we know about buildings in Mississauga.
Mississauga sits on the Peel clay plain, and that single fact explains more service calls than any other. Clay drains poorly, holds water against foundations, and turns every heavy rain into a hydrostatic pressure test for whatever the builder put on the wall. Cooksville Creek's flood history is the dramatic version of the story; the quiet version plays out in thousands of Erin Mills and Meadowvale basements where 1970s and 80s builder damp-proofing, a thin coating that was never true waterproofing, is reaching the end of its life all at once.
The roofing story follows the same waves. Applewood and Cooksville carry postwar bungalows on their third shingle cycle. The vast tract subdivisions of Erin Mills, Meadowvale, and Lisgar are moving through their second, with builder-grade flashings and boots failing on a near-uniform schedule street by street. Port Credit and Lakeview mix older lakefront housing, with the high water tables that come with it, against new infill, while Streetsville's heritage core needs work that respects buildings the rest of the city doesn't have.
Then there's the vertical city: the condo and commercial corridor along Hurontario and around Square One, with a large stock of flat membrane roofs and below-grade parking structures that need commercial-grade assessment, not residential guesswork. We work across all of it, same diagnostic process everywhere, materials and methods matched to what the building actually is.
"Tract housing rewards pattern recognition. When we've already fixed the same failed wall flashing on six houses from the same Erin Mills builder, the seventh diagnosis is fast and the quote is accurate, and when a Lakeview basement leaks, we already know to ask about the water table before anyone mentions cracks. Twenty-five years of GTA work means Mississauga's construction waves are familiar territory for us, from Applewood bungalow to Hurontario high-rise. We still inspect every building individually. We just start from knowledge instead of guesses."
Blue Knight, Mississauga
Ready to schedule your estimate?
We come to you, assess the roof, and give you a written quote. You are not obliged to proceed. Most estimates completed same week.