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Spiros Aluminum & Roofing Inc.

Toronto roofers since 1986

Roofing Company in Toronto

Roof repair, re-roofing and flat roofs for Toronto homes, from semis with a flat roof out back to steep Scarborough roofs full of valleys and dormers. A family roofing company since 1986, and every job is quoted in writing.

★★★★★ 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

Modern luxury Toronto home with a new flat roof

Local roofing in Toronto

Semis, row houses and flat rear roofs

Much of old Toronto is semis and row houses built in the late 1800s and early 1900s, in neighbourhoods like Leslieville, Riverdale, Cabbagetown and the Annex. The front of the house usually has a steep shingled roof, and the back has a flat or low-slope roof over the kitchen or a later addition. Those flat sections, and the joins between the two, are where most leaks start.

On a semi or row house, your roof meets your neighbour’s. The flashing along that line needs care so water can’t get in on either side. Lots are tight, so getting materials up and old shingles out takes planning, and a bin on the street, boulevard or a public lane needs a Street Occupation Permit from the City.

A few Toronto jobs our customers have written about on HomeStars:

  • A Toronto semi where we replaced the flat roof across both halves, working carefully around the skylights and gutters (2021).
  • A 95-year-old Toronto roof with old layers piled on it. We stripped them off, added insulation and put on a new roof (2021).
  • A flat roof rebuilt the way we’d do a commercial one: foam insulation, cement board, two layers of membrane, and new flashing at the chimney and the plumbing stack (2022).
  • An East York house where the shingled main roof and the flat porch roof were both done in one day, with a new turbine vent (2024).
  • A big, steep Scarborough roof with lots of valleys and dormers, torn off and re-shingled (2020).

What we do

Roofing services in Toronto

Residential and commercial work, quoted in writing.

Roofer resealing copper step flashing at a stone chimney

Roof repair

Leaks, lifted or missing shingles, failed flashing at chimneys and vents, storm and ice-dam damage. We find where the water is getting in before we price the fix.

Roof replacement in progress on a luxury stone home in Kleinburg

Roof replacement

Tear-off to the deck, ice and water shield at the eaves and valleys, new underlayment, vents and shingles, and a cleaned-up yard. Comparing materials? Start with our guide to roof shingle types.

Modern luxury Toronto home with a new flat roof

Flat roofing

Modified bitumen roofs and flat-roof repairs for rear additions, garages, semis and commercial buildings.

New black seamless eavestrough on a luxury stone home

Eavestroughs

Seamless aluminum eavestrough and downspouts, repairs, cleaning and leaf guards.

New skylights on the roof of a luxury Toronto home

Skylights

Skylight replacement and leak repair, with new flashing so the unit sits tight to the roof.

Bronze aluminum soffit and fascia on a luxury stone home

Soffit and fascia

Aluminum soffit and fascia that keeps the attic venting and protects the roof edge from rot.

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 a roofing 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

Neighbourhoods we cover in Toronto

Scarborough, East York, the Beaches, Leslieville, Riverdale, the Danforth, Leaside, Cabbagetown, the Annex, High Park and Roncesvalles. For the north and west ends, see our North York and Etobicoke pages.

Questions

Toronto roofing questions

Not for a straight re-roof. The City of Toronto doesn’t require a building permit to replace roofing material when no structural work is needed. Structural changes and additions do need one, and so does a new skylight if more than one rafter has to be cut. A bin on the street, boulevard or a public lane needs a separate Street Occupation Permit from the City, which comes with a daily fee.

Yes. What matters most is the flashing where your roof meets your neighbour’s, so water can’t get in along that line. New shingles won’t match the colour of older ones exactly, so some neighbours agree to do both halves at the same time. When a flat roof runs across both houses, doing it in one go is usually the cleanest job.

Rear additions on older Toronto homes usually have a flat or low-slope roof, and those tend to fail at the seams, around the drain, or where the addition meets the main wall. If the area was shingled, that’s often the problem: shingles need pitch to shed water, and on a roof that flat the water sits and finds a way in. The fix is usually a proper membrane and new flashing where it meets the house.

A typical Toronto house takes one to two days for a tear-off and new shingles. Steep roofs with lots of valleys and dormers, rotten boards under the old shingles, or a stretch of rain can add a day. A flat roof over a rear addition or garage is often done in a day.

Most asphalt shingle replacements on Toronto and GTA homes land between $9,000 and $26,000 in 2026. Size, pitch, how many layers come off and any rotten decking move the price the most. Architectural shingles typically run $5.50 to $9 per square foot installed, and flat roofs about $5 to $17. Our 2026 roof replacement cost guide breaks it down by house size.

Late spring to early fall. Shingles need warm weather to seal. In the cold they get stiff and can take weeks to bond, so winter re-roofs need extra hand-sealing. Leaks and repairs get handled all year.

It can. In the Cabbagetown heritage districts, repairs using the original roofing material don’t need a heritage permit, but switching to a different material does. If your house is in a heritage district, check with the City’s Heritage Planning team before you change what the roof is made of.

Need a roofer in Toronto?

Call the family team at 416-286-7759 or send us a few details and we’ll book an inspection.