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 Newmarket, York Region
Newmarket Flat Roof Repair, Installation, and Replacement
We repair, replace and install flat roofs across Newmarket in York Region. Free no-obligation quotes, warrantied workmanship and 24/7 emergency response.
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.
Flat Roofs in Newmarket, Up Close
Behind the parapets on Newmarket's older main street sit some of the hardest working low slope roofs in the region: two and three storey commercial blocks, built attached, with storefronts below and apartments or offices above. Many still carry aged built up assemblies under a coping that has not been resealed in a long while. Away from the core the picture changes to newer subdivisions, where flat sections appear over garages, porticos and rear wings, and to business park and big box stock along the highway corridor with broad low slope fields. Snow sits deeper this far north, which makes drainage and parapet detailing the difference between a dry building and a recurring leak.
What We Do on Newmarket Roofs
Newmarket work covers coping and parapet flashing rebuilds on downtown blocks, leak tracing through occupied second floor space, drain and scupper replacement, full tear off and replacement on commercial fields, garage and addition decks on residential streets, and emergency flat roof repair around the clock once water is already inside.
Where Newmarket 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 Newmarket
Attached main street blocks, parapeted on every side, favour two ply SBS modified bitumen because it details well at upturns. Larger business park and retail fields are better served by TPO or PVC. Whatever tar and gravel lies underneath comes off before anything new goes down. 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 Newmarket
The conditions that decide how long a roof here lasts, and what we detail differently because of them.
- Downtown blocks are built wall to wall, so coping and party wall flashing above is effectively shared, and water entering one roof often surfaces in the unit next door.
- Deeper snow accumulation this far from the lake loads flat decks well into spring and keeps drains frozen shut, leaving meltwater sitting on seams for weeks at a time.
- Second floor apartments and offices under those roofs mean every repair has to account for occupied space below, including interior protection and access arranged from the street.
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 Newmarket: Systems and Costs
Compare flat roofing in Newmarket: membrane systems, 2026 costs per square foot, slope and permit rules, timelines and maintenance from a flat roof specialist.
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.
Newmarket Flat Roofing Questions
Straight answers to what people ask us about a roof on this street.
What is involved in re roofing a Newmarket main street building?
Access is the first question, because most Newmarket blocks have no rear yard and material has to be hoisted from the street or a lane with permits arranged. After that it is tear off to deck, insulation, two ply membrane, and new flashings at every parapet, coping and party wall. Occupied space below gets protected. Timelines run longer than on an open commercial field.
How quickly can someone get out to a leak in Newmarket?
We answer emergency flat roof calls around the clock, and water coming into occupied space in Newmarket gets attention the same day. The first visit is about stopping entry with a temporary seal. The permanent repair follows once the assembly is dry enough to open, so we can see how far the water has travelled through the insulation.
What does a flat roof cost to replace in Newmarket?
Replacement generally works out to $8 to $15 per square foot. On a Newmarket commercial block, expect the higher end, because parapets, copings, street access and interior protection all add labour that a wide open field does not need. A garage or addition deck on a residential street sits lower. Quotes are free and carry no obligation.
Can flashing work be done in Newmarket in the winter?
Emergency repair happens year round, and self adhered and torch applied modified bitumen systems both go down through the cold with adjusted practice. Full parapet rebuilds on a Newmarket block are better scheduled when the roof can be kept clear of snow and the substrate stays dry, but nothing about winter stops us from making a building watertight.
Nearby Areas We Also Cover
Flat roofing in the streets either side of Newmarket:
Aurora • King City • Richmond Hill • All of York Region
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Get a Free Flat Roof Quote in Newmarket
Free, no-obligation quotes across Newmarket and the rest of York Region, and a 24/7 emergency line on (647) 333-3528.