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 Vaughan
Roofing & Waterproofing in Vaughan
Vaughan is a city of new houses with problems that shouldn't exist yet. We've spent years separating genuine wear from builder shortcuts, and fixing both properly.
25+Years on GTA roofs
60 minEmergency response
Licensed& fully insured
GTARegion served
Our Services in Vaughan
What we do in Vaughan.
Four core services, each with bespoke local knowledge applied to Vaughan'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 Vaughan 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.
“A ten-year-old house that leaks isn't unlucky, it was built that way, and someone has to be willing to say so. That's the role we've settled into in Vaughan. We put the failure in writing: which flashing was shorted, which crack traces back to backfill settlement, what the builder's damp-proofing was never designed to do. Homeowners here don't need reassurance. They need a straight diagnosis, a defensible price, and a repair that outlasts the one the builder installed.”
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.
“A ten-year-old house that leaks isn't unlucky, it was built that way, and someone has to be willing to say so. That's the role we've settled into in Vaughan. We put the failure in writing: which flashing was shorted, which crack traces back to backfill settlement, what the builder's damp-proofing was never designed to do. Homeowners here don't need reassurance. They need a straight diagnosis, a defensible price, and a repair that outlasts the one the builder installed.”
Rated 5 out of 5Called after a storm damaged our roof. Someone was on site within hours, tarped everything, and had us fully repaired before the next rain.
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
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
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
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
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 Vaughan.
We work across all areas of Vaughan. If you don't see your neighbourhood listed, we almost certainly cover it.
Maple
Woodbridge
Kleinburg
Thornhill (Vaughan)
Concord
Vellore Village
Islington Woods
Carrville
Patterson
Sonoma Heights
East Woodbridge
Kortright Hills
FAQ
Vaughan roofing questions.
It's not normal, but in Vaughan it's common. Volume-built subdivisions from the 2000s and 2010s carry predictable installation defects, shorted valley liners, unsealed pipe boots, step flashing that was never woven into the brick veneer. These fail a decade or more before the shingles themselves wear out. We identify the specific defect and correct it, rather than patching over it.
Because builders install damp-proofing, not waterproofing, a thin spray coat with no crack-bridging ability. As backfill around a new foundation settles over the first five to fifteen years, hairline cracks open in the concrete and the coating splits right along with them. Vellore Village, Carrville, and Maple basements leak for exactly this reason, and it's fixable at the source.
Yes. The industrial and big-box stock around Highway 7 and the 400 runs on large-span flat membrane systems. TPO, EPDM, and modified bitumen, and we inspect, repair, and replace all three. We provide written condition reports suitable for property managers, lease reviews, and reserve planning.
We do, around the clock, with a typical on-site time of 60 minutes anywhere in Vaughan. Storm cells coming off the Oak Ridges Moraine hit these tall two-storey rooflines hard, and an open valley or lifted flashing can move a lot of water fast. We contain first, document the damage for insurance, then quote the permanent repair.
All of it, which in Vaughan means several quite different places: Woodbridge and Kleinburg in the west, Maple and Vellore Village through the centre, Concord and the Highway 7 corridor to the south, and Carrville and Thornhill Woods on the Richmond Hill side. The 400 and 407 make most of it a fast run for a crew, which is not something we can say about every municipality this size.
Yes, through the City of Vaughan's building standards department at City Hall on Major Mackenzie. Structural roof work and foundation alterations require a permit; a like-for-like reroof generally does not. Kleinburg's heritage conservation district adds a further review for exterior work, and we establish whether a property sits inside it before quoting.
In Depth
Built Fast: The Pattern Behind Vaughan's Roofing and Basement Problems
Vaughan grew faster than almost any municipality in Ontario, and the housing that growth produced shares a construction fingerprint. The roofs are large and complicated, multiple valleys, dormers, roof-to-wall transitions against brick veneer, which multiplies the number of flashing details a production crew had to get right on a tight schedule. Some were done properly. Many weren't, and the difference doesn't show up until year eight or twelve.
The foundations tell a parallel story. Subdivision lots were graded to move water toward engineered swales and sump systems, and the walls themselves received a damp-proofing spray rather than a true waterproofing membrane. When the backfill settles and the grading shifts, water starts loading against a coating that was never meant to resist it. Our work in Vaughan is largely about correcting these origins, deliberately, one documented defect at a time.
From Kleinburg Estates to Concord Warehouses
The range of buildings we service in Vaughan is wide. Kleinburg and the Kortright-area wooded lots carry premium homes under mature tree canopy, where debris load clogs valleys and gutters and accelerates localized wear. Woodbridge mixes older village stock with estate builds. And the employment lands along Highway 7 and the 400 hold flat-roof industrial and retail buildings measured in tens of thousands of square feet.
One contractor covering that spread only works if the diagnostic discipline is consistent, and ours is. Every Vaughan call starts with tracing the failure to its source, continues with a written scope and price, and ends with a repair we test before we leave. That's been the Blue Knight method since 1999, and Vaughan's building stock is exactly the kind that rewards it.
Nearby Service Areas
Other areas we serve near Vaughan.
About Vaughan
What we know about buildings in Vaughan.
Almost everything residential in Vaughan went up between the early 1990s and the late 2010s. Maple, Vellore Village, Carrville, Patterson, these are subdivisions of large-format homes with brick and stone veneers, steep multi-plane rooflines, and finished basements that families actually live in. On paper, none of it should be leaking. In practice, we get called to Vaughan constantly, because volume homebuilding trades speed for detail, and the details are exactly where water gets in.
Above grade, the recurring issues are geometric. These houses carry complicated roofs, intersecting gables, dormers, and valleys that dump water into concentrated channels. A dead valley tucked behind a dormer, a step flashing run that was face-nailed instead of woven into the brick, a valley liner cut short of its minimum coverage, each of these works fine for a few years, then fails on a house that's barely into its second decade. Below grade, the story is settlement. Foundations poured into disturbed backfill move in their first five to fifteen years, and the hairline cracks that result run straight through walls protected only by a builder's spray-applied damp-proofing coat.
Vaughan also has a serious commercial side. The Highway 7 and 400 corridor around Concord carries warehouse, light industrial, and big-box retail stock with large-span flat membrane roofs, a completely different discipline from residential shingle work, and one our crews handle regularly. Whether the call is a soaked ceiling in Kleinburg or a ponding TPO roof off Jane Street, we start the same way: diagnose first, then propose a scope in writing.
A ten-year-old house that leaks isn't unlucky, it was built that way, and someone has to be willing to say so. That's the role we've settled into in Vaughan. We put the failure in writing: which flashing was shorted, which crack traces back to backfill settlement, what the builder's damp-proofing was never designed to do. Homeowners here don't need reassurance. They need a straight diagnosis, a defensible price, and a repair that outlasts the one the builder installed.
About Vaughan
What we know about buildings in Vaughan.
Almost everything residential in Vaughan went up between the early 1990s and the late 2010s. Maple, Vellore Village, Carrville, Patterson, these are subdivisions of large-format homes with brick and stone veneers, steep multi-plane rooflines, and finished basements that families actually live in. On paper, none of it should be leaking. In practice, we get called to Vaughan constantly, because volume homebuilding trades speed for detail, and the details are exactly where water gets in.
Above grade, the recurring issues are geometric. These houses carry complicated roofs, intersecting gables, dormers, and valleys that dump water into concentrated channels. A dead valley tucked behind a dormer, a step flashing run that was face-nailed instead of woven into the brick, a valley liner cut short of its minimum coverage, each of these works fine for a few years, then fails on a house that's barely into its second decade. Below grade, the story is settlement. Foundations poured into disturbed backfill move in their first five to fifteen years, and the hairline cracks that result run straight through walls protected only by a builder's spray-applied damp-proofing coat.
Vaughan also has a serious commercial side. The Highway 7 and 400 corridor around Concord carries warehouse, light industrial, and big-box retail stock with large-span flat membrane roofs, a completely different discipline from residential shingle work, and one our crews handle regularly. Whether the call is a soaked ceiling in Kleinburg or a ponding TPO roof off Jane Street, we start the same way: diagnose first, then propose a scope in writing.
"A ten-year-old house that leaks isn't unlucky, it was built that way, and someone has to be willing to say so. That's the role we've settled into in Vaughan. We put the failure in writing: which flashing was shorted, which crack traces back to backfill settlement, what the builder's damp-proofing was never designed to do. Homeowners here don't need reassurance. They need a straight diagnosis, a defensible price, and a repair that outlasts the one the builder installed."
Blue Knight, Vaughan
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.