Commercial · Toronto & York Region
Commercial Flat Roofing in Toronto & the GTA
Modified bitumen flat roofs, repairs and replacements for commercial and industrial buildings across Toronto and York Region.
★★★★★ 5.0 on Google (75 reviews) · 4.9 on HomeStars (175 reviews)
Since 1986
Family-run by the Spiros family
25,000+ installs
Roofs and exteriors across the GTA
265+ Reviews
5.0 Google · 4.9 HomeStars
100% Canadian
Local crew, no call centre
Commercial Flat Roofing
Flat roofs built for Ontario winters
We’ve roofed several buildings at Canada’s Wonderland in Vaughan with Rutherford Contracting, working around a park that stays open.
Most commercial buildings in the GTA have flat or low-slope roofs. We install and repair modified bitumen systems with properly flashed parapets, curbs and drains, the places flat roofs usually fail.
- Modified bitumen systems
- Parapet and curb flashing
- Drain and scupper repairs
- Seam and blister repairs
Know the signs
Signs of flat roof trouble
Call us if you notice any of these. Catching it early usually means a smaller bill.
- Ponding water
- Blisters and bubbles
- Seams lifting
- Leaks near rooftop units
- Soft spots underfoot
Why Spiros
Why homeowners and businesses choose us
Family-run since 1986
The family started the company in 1986 and still runs every job. You deal with the people who own the business.
25,000+ roofs and exteriors
Four decades of work across Toronto and York Region, from custom homes and estates to commercial buildings.
Trusted on landmark projects
We re-roofed several buildings at Canada’s Wonderland and roof new custom homes for builders across York Region.
Clear written quotes
Scope, materials and price in writing before work starts. Reviewers regularly mention clear, fair pricing.
On schedule, clean site
Customers mention crews arriving on the date promised and leaving the property spotless.
265+ Reviews
5.0 Google · 4.9 HomeStars
How it works
How the job runs
01
Call or book online
Tell us what you’re seeing: a leak, missing shingles, an old roof. We book a time that suits you.
02
Inspection
We check the roof, flashing, vents and eavestroughs, look in the attic where we can, and take photos.
03
Written quote
You get the scope, materials and price in writing and time to think it over.
04
The job and clean-up
We protect the house and yard, do the work, and clean the site before we leave.
Service area
Where we work
From our office in Richmond Hill we cover Toronto and York Region, north to Bradford and Innisfil.
Questions
Commercial Flat Roofing questions
Yes. We plan the work around your hours and tenants and keep access routes clear.
Yes, across Vaughan, Richmond Hill, Markham, Newmarket, Aurora and the rest of York Region.
Commonly 15 to 20 years or more with good drainage and maintenance.
Yes. A yearly check catches small problems before they become leaks.
Reviewed by the Spiros Aluminum & Roofing family team, roofing in the GTA since 1986. Have another question? See our Roofing FAQ.
Talk to the family team
Call 416-286-7759 or send us a few details and we’ll book an inspection.