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Roof Replacement

Residential Roof Repair

We specialise in all kinds of residential roof repair, replacement and installation.

Commercial Flat Roof Repair

Commercial Flat Roof

We specialize in commercial roof replacement & flat roof repair in the Greater Toronto Area.

Residential Siding Button

Residential Siding

We install wood, steel, aluminum, steel or composite siding based on your requirements.

aluminum eavestrough

Aluminum Eavestrough

We repair or replace aluminum eavestrough of all lengths and sizes.

Welcome to Best Flat Roof by Decor Star

the best flat roof contractor in Toronto

Some of Our Clients

What Our Clients Say About Us

Hire the Best Contractor For Your Flat Roof Repair or Replacement

We’ve been repairing flat roofs in the Greater Toronto Area for over 10 year. Trust us to repair your roof.

Toronto Commercial Flat Roof Repair & Replacement

Welcome to Best Flat Roof Toronto. We are a top rated flat roof repair company servicing the GTA and surrounding areas.  If you are looking for an experienced flat roof specialist licensed and insured by the Workplace Safety and Insurance Board in Toronto, then you’ve come to the right place.  We offers repair services, flat roof replacement, and complete new installation for roofs, garage, and roof top patios.  Not only are we experts in single residential dwellings, we also specialize in condos, commercial plazas, industrial buildings and other commercial structures  We also offer additional repair services, such as residential siding, insulation, flashing and aluminum eavestrough. Contact us today and setup your free estimate!

Why Choose Us?

  • Over 10 Years Experience

    Over 10 Years Experience

    Best Flat Roof has been in business for over 10 years serving Toronto, Scarborough and surrounding areas.

  • Competitive Prices

    Competitive Prices

    We offer one of the most competitive flat roof repair prices in Toronto.  If you find a better quote from another professional flat roof contractor, We can match it or beat it.

  • We Guarantee Our Work

    We Guaranty Our Work

    We are so confident of the workmanship of our professional Toronto flat roof contractors, we guarantee our work for 10 years or more.  For details, speak to one of our roofing contractors.

  • Peace of Mind

    Peace of Mind

    With our experience, our guarantee, and rave reviews from our customers on Homestars, you can enjoy peace of mind that your roof repair or installation is in safe hands..

Brands That We Trust

Unbiased Third Party Recognition


HomeStars Best Flat Roof
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