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 Oshawa
Roofing & Waterproofing in Oshawa
Oshawa's industrial heritage produced a dense stock of workers' housing and commercial buildings, many now at a critical point in their roofing lifecycle.
25+Years on GTA roofs
60 minEmergency response
Licensed& fully insured
GTARegion served
Our Services in Oshawa
What we do in Oshawa.
Four core services, each with bespoke local knowledge applied to Oshawa'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 Oshawa 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.
“Oshawa property owners know what quality work looks like. We meet that standard, honest assessment, permanent repairs, written documentation.”
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.
“Oshawa property owners know what quality work looks like. We meet that standard, honest assessment, permanent repairs, written documentation.”
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.
Rated 5 out of 5I 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.
1 / 3
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
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 Oshawa.
We work across all areas of Oshawa. If you don't see your neighbourhood listed, we almost certainly cover it.
Central Oshawa
O'Neill
Vanier
Donevan
Eastdale
Samac
Pinecrest
Taunton
Windfields
FAQ
Oshawa roofing questions.
Homes of this age are on their third or fourth roofing cycle. Original deck condition, accumulated flashing failures, and chimney masonry issues are all common. We assess the full picture.
Yes, industrial and commercial flat-roof work is within our capability.
Within 60 minutes throughout Oshawa.
Yes, including older workers' housing foundations.
Yes, pre-purchase inspections with written reports accounting for the age of Oshawa's housing stock.
In Depth
Older Housing Stock Roofing in Oshawa
Oshawa's workers' housing from the 1920s-60s is among the oldest residential stock in the GTA outside central Toronto. These buildings have decades of repair history layered on top of original construction.
We read that history in the building before proposing any work.
Commercial and Industrial Roofing in Oshawa
Oshawa's industrial and commercial corridors have extensive flat-roof stock. We work on these buildings with the commercial membrane expertise they require.
Written reports for property management and lease review.
Nearby Service Areas
Other areas we serve near Oshawa.
About Oshawa
What we know about buildings in Oshawa.
Oshawa's identity as Canada's automotive capital shaped its building stock. Decades of auto industry employment created substantial residential neighbourhoods of 1920s-1960s housing, workers' cottages, semis, and bungalows built in waves corresponding to factory expansions. This stock is now 60-100 years old and has been reroofed multiple times.
The commercial and industrial corridors. Simcoe Street, Taunton Road, the Oshawa waterfront redevelopment area, have significant flat-roof stock ranging from original 1940s industrial to recent commercial.
Oshawa's housing market has a strong owner-occupier culture, people who care about their buildings and want honest, capable contractors. That's what we bring to Oshawa.
Oshawa property owners know what quality work looks like. We meet that standard, honest assessment, permanent repairs, written documentation.
About Oshawa
What we know about buildings in Oshawa.
Oshawa's identity as Canada's automotive capital shaped its building stock. Decades of auto industry employment created substantial residential neighbourhoods of 1920s-1960s housing, workers' cottages, semis, and bungalows built in waves corresponding to factory expansions. This stock is now 60-100 years old and has been reroofed multiple times.
The commercial and industrial corridors. Simcoe Street, Taunton Road, the Oshawa waterfront redevelopment area, have significant flat-roof stock ranging from original 1940s industrial to recent commercial.
Oshawa's housing market has a strong owner-occupier culture, people who care about their buildings and want honest, capable contractors. That's what we bring to Oshawa.
"Oshawa property owners know what quality work looks like. We meet that standard, honest assessment, permanent repairs, written documentation."
Blue Knight, Oshawa
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.