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Serving Ajax & the GTALicensed & WSIB covered

Flat Roofing Services in Ajax

Reliable flat roofing for Ajax properties — membrane systems and repairs for Durham Region homeowners.

The overview

Reliable flat roofing for Ajax properties — membrane systems and repairs for Durham Region homeowners.

Real Ajax pricing

Flat Roofing cost in Ajax

Typical 2026 price ranges for Ajax homeowners. For a detailed pricing guide with project scenarios and material breakdowns, see our full Ajax cost guide.

Typical Ajax projectPrice rangeNotes
Commercial on Bayly Street (1,200 sq ft)$11,000–$16,500Standard commercial TPO, good road access
Residential addition in South Ajax (350 sq ft)$3,800–$5,800Small area, lake proximity specification
Warehouse/light industrial near Westney (4,000 sq ft)$33,000–$50,000Commercial TPO, straightforward industrial access
Permit fee in Ajax
$145–$340 at Town of Ajax Building Department

Ajax flat roofing costs are approximately 6% below the Toronto baseline, reflecting Durham Region labour dynamics.

See the full Ajax flat roofing pricing guide
Local expertise

Flat Roofing for Ajax homes

Ajax's residential flat roofing work focuses primarily on additions, garages, and porches on the community's 1990s–2000s housing stock. Many of these original membranes are approaching replacement age. We serve Ajax homeowners with straightforward, competitive pricing and honest assessments of whether repair or replacement makes more sense for your specific situation.

Areas we serve in Ajax
South AjaxCentral AjaxWestney HeightsRiversideNorthwest Ajax
Ajax-specific considerations
  • 1990s–2000s membranes approaching replacement age
  • Town of Ajax permit requirements
  • Competitive Durham Region pricing
Common project types
  • Homes with flat addition sections
  • 1990s builds with flat garages
  • Commercial properties
Reviewed by Patrick Grygoruk · Owner & Project Manager

25+ years in GTA exterior renovation · Licensed Ontario contractor · WSIB-covered · permits managed for you. Meet the team

Honest answers

Flat Roofing in Ajax — questions answered

Ajax flat roofing costs follow Durham Region rates — typically $8–$14 per sq ft installed for TPO or EPDM. A typical residential addition or garage section runs $3,000–$8,000 depending on size and condition of the existing substrate.

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