Commercial flat roof leaking, ponding or past its life? Guelph Roofers installs and repairs TPO, EPDM and modified bitumen roofs on plazas, warehouses, multi-unit buildings, home additions and garages across Guelph.
Get a Free Quote Call 226-790-2967Flat roofs fail differently from shingle roofs: seams open, ponding water finds every pinhole, and flashing at HVAC curbs and parapets lets go. We service commercial flat roofs for property managers and business owners across Guelph's industrial and retail areas, and residential flat roofs on additions, porches and garages.
Heat-welded single-ply membrane for commercial roofs — reflective, energy-efficient and the most common choice for new flat roofs in Ontario.
Proven rubber membrane for residential flat roofs, garages and additions, with fully adhered or mechanically fastened installation.
Two-ply torch-down or self-adhered mod-bit for roofs with heavy foot traffic or complex details.
Seam re-welding, membrane patches, flashing repairs at curbs and parapets, and drain and scupper repairs.
Tapered insulation, added drains and scuppers to stop standing water from shortening the roof's life.
Semi-annual inspections and drain clearing for property managers who would rather not hear about a leak from a tenant.
Flat roof inspection with photos and written report
Certified installation of the major membranes
Disruption to tenants and operations
Guelph crew, fast response for leaks
We work on flat roofs across Guelph's commercial corridors — the Hanlon Business Park, Woodlawn Road, the plazas along Stone Road and Speedvale — and on multi-unit residential buildings managed by local property management companies. On the residential side, Guelph's century homes often have flat-roofed rear additions and porches that were tarred decades ago and are now the source of the leak.
Shingle roof instead? See roof repair or roof replacement in Guelph. Leak during business hours? See emergency roof repair.
We also serve: Guelph, Erin, Elora, Cambridge, Rockwood, Kitchener, Fergus and surrounding Wellington County communities.
A properly installed TPO or EPDM roof lasts 20 to 30 years. Modified bitumen is similar. Most flat roofs that fail early do so because of ponding water, clogged drains or flashing that was never done right — all of which show up on an inspection.
Often, yes. Seam failures, flashing leaks and isolated membrane damage are repairable. If the membrane is brittle across the whole roof, the insulation underneath is wet, or there are many patches already, replacement is better value. A core sample tells us whether the insulation is saturated.
Yes. We schedule around business hours where possible, keep access clear and coordinate with your property manager so tenants are not surprised.
For commercial roofs, TPO is the most common choice: it is heat-welded at the seams, reflective and holds up well to Ontario winters. For residential additions and garages, EPDM is cost-effective and proven. We recommend based on the roof, not a single product.
Pricing is per square foot and depends on the membrane, insulation, tear-off and the number of penetrations and details. We provide a written quote after an on-site inspection.
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