A lumbered slope framed over a flat roof deck to move water toward the drains, with a two-ply system installed over it.
Lumbered Slope Build and Two-Ply System, Toronto
Open Lumbered Slope Build and Two-Ply System, Toronto
Flat roofing in Aurora, York Region
Aurora Flat Roof Repair, Installation, and Replacement
Low-slope roofing for Aurora in York Region: leak tracing, tear-offs, new membrane and rebuilt flashing, quoted in writing before anything comes off.
What you get from Flat Roofs Toronto
24/7 Emergency Response
Leaks do not wait for business hours.
Free No-Obligation Quotes
Scope, system and number, in writing, first.
Manufacturer & Workmanship Warranties
The materials and the installation are both covered.
Flat Roofs Only
Low-slope work is the whole business, not a sideline.
The Flat Roofs of Aurora
Aurora's building stock splits three ways for a flat roofing crew. The older commercial blocks on the historic main street carry low slope decks hidden behind street facing parapets, most of them patched built up assemblies. The subdivisions are sloped overhead, but flat sections sit over attached garages, porticos and rear additions. Business park units carry wide low slope fields loaded with rooftop mechanical. Sitting well inland, Aurora sees colder overnight lows and deeper snow than the lakeshore, so seams and parapet flashings work harder through every freeze thaw swing. Leaks here usually announce themselves at a wall junction or a transition, not out in the open field.
What We Do on Aurora Roofs
We trace a leak back to its entry point instead of tarring the stain, rebuild parapet and wall flashings, replace failed drains and scuppers, reflash skylights and vent stacks, and tear off and rebuild decks that are past patching. Emergency flat roof repair runs 24/7 in Aurora, and every quote is free and no obligation.
Where Aurora Sits in Our Service Area
The plan opens on this part of the GTA. Every city we cover in the region is in the legend beside it.
Select a region on the plan
Systems That Suit Aurora
Small decks over garages and additions take SBS modified bitumen laid two ply, or EPDM. Wide business park fields favour TPO or PVC. Old tar and gravel comes off first, and cold applied liquid suits tight parapet returns and awkward corners. Compare every flat roofing system.
Two Ply
Modified Bitumen
Torch-applied or self-adhered SBS in two plies, with a granule-surfaced cap. The default on Toronto houses because it handles tight perimeters, curbs and wall terminations without a wide sheet.
- 15 to 20 year service life
- Redundant second ply
- Repairs patch cleanly
Torch Free
Cold-Ply
The same two-ply build assembled in cold adhesive rather than with an open flame. It is what we specify over occupied buildings, beside vinyl siding and anywhere a torch is not welcome.
- No open flame on the roof
- Low odour on occupied buildings
- Granule-surfaced cap
Single Ply
TPO and PVC
Hot-air welded thermoplastic sheet, laid in wide rolls with far fewer seams. It suits large commercial fields, and the reflective white surface keeps a warehouse roof cooler through a Toronto summer.
- Welded rather than glued seams
- Reflective white surface
- Fast over large areas
Rubber
EPDM
A synthetic rubber membrane that stays flexible through freeze thaw movement and takes ponding better than most. Common on garages, additions and small commercial decks.
- Flexible in cold weather
- Tolerates standing water
- Simple to detail and repair
Local Considerations in Aurora
The conditions that decide how long a roof here lasts, and what we detail differently because of them.
- Aurora sits farther from the lake than the city, so overnight lows drop lower and the freeze thaw cycling that pries open lap seams and flashing laps bites harder here.
- Snow shed from a sloped main roof piles onto the flat deck over a garage or portico, and the ice dam that forms at that transition backs water under the membrane.
- Attached commercial blocks share party walls and parapets, so a leak that shows up in one unit often starts at the neighbouring flashing or coping above.
Recent Flat Roofing Projects
Real jobs photographed on site by the crews who did them.
Flat Roof Application Detail, Toronto
A detail from a flat roof membrane application, showing the finished surface of the system.
Attic Inspection and Blown-In Insulation, Toronto
Inspection of a flat roof attic space followed by blown-in insulation. The cavity is checked before any insulation is added.
Flat Roofing Advice
What we have written about keeping a low-slope roof watertight in this climate.
Flat Roofing in Richmond Hill: Best Systems for 2026
A practical 2026 guide to flat roofing in Richmond Hill: best membrane systems, real installed costs, Ontario Building Code insulation and drainage rules.
Commercial Flat Roofing in Markham: 2026 Guide
Commercial flat roofing in Markham: 2026 costs, membrane systems, drainage and Ontario Building Code rules, permits and maintenance for GTA building owners.
Commercial Flat Roofing in Vaughan: An Owner Guide
Commercial flat roofing Vaughan guide: 2026 costs, TPO, EPDM and modified bitumen options, drainage, permits and maintenance for York Region building owners.
Aurora Flat Roofing Questions
Straight answers to what people ask us about a roof on this street.
What does a flat roof replacement cost in Aurora?
Replacement in Aurora generally runs $8 to $15 per square foot installed. The spread comes from deck condition, how much insulation goes back on, the amount of parapet and flashing work, and how hard the roof is to reach. A small deck over a garage sits at the low end of the total; a business park field with heavy mechanical sits at the top. Quotes are free.
Can flat roof work be done in Aurora over the winter?
Yes. Torch applied and self adhered modified bitumen both go down in cold weather with adjusted practice, shorter rolls, and close attention to substrate temperature and moisture. Single ply welding is slower but workable. We do not leave an Aurora building open overnight in January, so winter jobs are staged in sections and dried in daily. Emergency repair runs all year.
Water shows up where my flat roof meets the sloped roof. Why?
That transition is the most common failure point on Aurora homes. The sloped roof dumps snow and meltwater onto a small flat deck, ice builds at the junction, and water rises above the membrane termination. The fix is rarely more caulking; it means rebuilding the step flashing and carrying the membrane upturn high enough up the wall that backed up water cannot get behind it.
How long should a new flat roof last in Aurora?
Two ply modified bitumen typically gives a 15 to 20 year service life. EPDM, TPO and PVC single ply are commonly quoted at a 20 to 30 year service life and can run longer when drains are kept clear and flashings are checked each season. Aurora's deeper snow makes drainage maintenance the single biggest factor. Manufacturer and workmanship warranties are available.
Nearby Areas We Also Cover
Flat roofing in the streets either side of Aurora:
Newmarket • King City • Richmond Hill • All of York Region
Google Reviews
Reviews From Across the GTA
These come straight from our Google Business Profile. We cannot edit them, reorder them or take one down, and the rating in the header is whatever Google is showing today.
Free, No Obligation
Get a Free Flat Roof Quote in Aurora
Free, no-obligation quotes across Aurora and the rest of York Region, and a 24/7 emergency line on (647) 333-3528.