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
North York's post-war housing stock is well into its second and third roofing cycle. We know the specific failure patterns on these buildings, and we fix them properly the first time.


Four core services, each with bespoke local knowledge applied to North York's specific building types and conditions.
01Flat, shingle, metal. Commercial and residential.
02Below grade. Balcony. Terrace. Parking deck.
0324 hours a day. On site within 60 minutes across the GTA.
04Comprehensive reports a lender will accept.
01Flat, shingle, metal. Commercial and residential.
02Below grade. Balcony. Terrace. Parking deck.
0324 hours a day. On site within 60 minutes across the GTA.
04Comprehensive reports a lender will accept.
Active leaks anywhere in the GTA get same-day priority dispatch. We answer at 2am, including weekends and holidays.
Complete liability coverage on every job. All work is documented and you are protected from start to finish.
Inspection reports, repair documentation, and scope estimates in writing before we touch anything.
We've worked on tens of thousands of GTA buildings. We recognise failure patterns before they become emergencies.
We trace the actual failure mode before proposing a scope, and we quote what that scope requires rather than inventing urgency.
“North York's building stock spans sixty years of construction methods. We know the difference between a 1955 wartime-era shingle roof and a 1978 flat-roof mid-rise. Our crews pull the right materials and methods for each, not a generic approach applied to everything.”
Active leaks anywhere in the GTA get same-day priority dispatch. We answer at 2am, including weekends and holidays.
Complete liability coverage on every job. All work is documented and you are protected from start to finish.
Inspection reports, repair documentation, and scope estimates in writing before we touch anything.
We've worked on tens of thousands of GTA buildings. We recognise failure patterns before they become emergencies.
We trace the actual failure mode before proposing a scope, and we quote what that scope requires rather than inventing urgency.
“North York's building stock spans sixty years of construction methods. We know the difference between a 1955 wartime-era shingle roof and a 1978 flat-roof mid-rise. Our crews pull the right materials and methods for each, not a generic approach applied to everything.”
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.
Rated 5 out of 5Had 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.
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.
They installed a full new roof in one day. The crew worked around the house without us hardly knowing they were there.
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.
Blue Knight was, by far, the best. Responsive, ethical, totally professional — and their crew went above and beyond at no extra charge.
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.
Luciano did not try to sell me a new roof. Appreciated the honesty — he showed up when he said he would.
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.
Flat roof replacement on a commercial unit. Clean, fast, no surprises on the invoice. The crew left the site cleaner than they found it.
Called after a storm damaged our roof. Someone was on site within hours, tarped everything, and had us fully repaired before the next rain.
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.
From downtown Toronto to the 905 and beyond, one crew, one warranty, twenty-five years of GTA rooflines.
Service availability may vary. Call (647) 383-8664 to confirm coverage for your area.
From downtown Toronto to the 905 and beyond, one crew, one warranty, twenty-five years of GTA rooflines.
Service availability may vary. Call (647) 383-8664 to confirm coverage for your area.
We work across all areas of North York. If you don't see your neighbourhood listed, we almost certainly cover it.
The whole of the former borough, from Steeles down to Eglinton and from the Humber across to Victoria Park. That takes in Willowdale and Bayview Village in the north, Bathurst Manor and Lawrence Manor through the middle, and Flemingdon Park and Victoria Village on the east side. Our shop is on Suntract Road, so most North York addresses are a short run for a crew.
Yes, through Toronto Building, which handles North York from the North York Civic Centre office on Yonge. Structural roof work and foundation alterations need a permit; a like-for-like reroof generally does not. We confirm which applies to your job before we quote it and we file the paperwork ourselves.
Regularly. The mid-rise stock along the Yonge and Sheppard corridor is largely professionally managed, and much of our work there runs on scheduled maintenance agreements rather than one-off calls. Our reports are formatted for reserve fund studies and board minutes, which is usually what a manager actually needs from a contractor.
We have been on North York rooftops since the early 2000s and the business has been based here throughout. The borough went from post-war suburb to dense urban centre inside two generations, so the building stock holds every era at once, and reading which one you are standing on is most of the diagnosis.
North York is not one place. The residential grid between Lawrence and Sheppard is wartime and post-war housing on generous lots, much of it now on a second or third roof. The Yonge corridor from Sheppard up to Finch is a wall of 1970s and 80s mid-rise and highrise, almost all of it flat-roofed. Hoggs Hollow sits in a ravine with its own drainage behaviour, and Flemingdon Park and Victoria Village on the east side carry a mix of postwar rental blocks and infill.
Those are four different buildings requiring four different trades, and a contractor who only does one of them will tell you the other three need replacing. We run residential shingle crews and commercial membrane crews out of the same shop, which is the only reason we can answer for the whole borough rather than the part that suits us.
We arrive with the tools to trace, not just look. Every service call in North York starts with identifying the actual failure mode, not treating the symptom. For a residential bungalow that's showing ceiling stains, that means getting on the roof, checking the valley flashings, the pipe boots, and the attic ventilation. For a flat-roof building, it means checking laps, penetrations, and drain details.
Our written reports document what we find before we fix it. You'll know what failed, why it failed, and what the repair involved. That paper trail matters for insurance claims, future sales, and property management accountability.
North York was built fast in the 1940s through 1960s. Bungalows and wartime semis dominate the residential streets between Lawrence and Sheppard, and most of those original roof structures have been reroofed at least once. The second set of shingles is often where the trouble starts, improper installation over the original deck, blocked attic ventilation, and flashings that were never upgraded.
The North York Centre corridor adds a different problem set: mid-rise and highrise residential buildings from the 1970s and 80s, most with flat roofing systems that have aged past their warranted lifespan. Modified bitumen, EPDM, and early TPO membranes on these buildings fail in predictable ways, and the repairs require trades who understand commercial membrane systems, not just residential shingle contractors.
We've worked on both. Residential bungalows in Willowdale, institutional buildings near Yonge and Sheppard, commercial retail along Wilson and Lawrence, our crews have covered the full range of North York construction. If you're seeing staining on a ceiling, efflorescence on a parapet, or water in a basement utility room, we can trace it.
North York's building stock spans sixty years of construction methods. We know the difference between a 1955 wartime-era shingle roof and a 1978 flat-roof mid-rise. Our crews pull the right materials and methods for each, not a generic approach applied to everything.
North York was built fast in the 1940s through 1960s. Bungalows and wartime semis dominate the residential streets between Lawrence and Sheppard, and most of those original roof structures have been reroofed at least once. The second set of shingles is often where the trouble starts, improper installation over the original deck, blocked attic ventilation, and flashings that were never upgraded.
The North York Centre corridor adds a different problem set: mid-rise and highrise residential buildings from the 1970s and 80s, most with flat roofing systems that have aged past their warranted lifespan. Modified bitumen, EPDM, and early TPO membranes on these buildings fail in predictable ways, and the repairs require trades who understand commercial membrane systems, not just residential shingle contractors.
We've worked on both. Residential bungalows in Willowdale, institutional buildings near Yonge and Sheppard, commercial retail along Wilson and Lawrence, our crews have covered the full range of North York construction. If you're seeing staining on a ceiling, efflorescence on a parapet, or water in a basement utility room, we can trace it.
"North York's building stock spans sixty years of construction methods. We know the difference between a 1955 wartime-era shingle roof and a 1978 flat-roof mid-rise. Our crews pull the right materials and methods for each, not a generic approach applied to everything."
Blue Knight, North York
We come to you, assess the roof, and give you a written quote. You are not obliged to proceed. Most estimates completed same week.