Flat roofing in Richmond Hill, York Region

Richmond Hill Flat Roof Repair, Installation, and Replacement

Flat roof repair, replacement and installation in Richmond Hill, York Region. Free written quotes with no obligation, and a 24/7 line when a ceiling starts dripping.

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24/7 Emergency Response

Leaks do not wait for business hours.

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Free No-Obligation Quotes

Scope, system and number, in writing, first.

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Manufacturer & Workmanship Warranties

The materials and the installation are both covered.

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Flat Roofs Only

Low-slope work is the whole business, not a sideline.

What a Flat Roof Faces in Richmond Hill

Richmond Hill layers postwar housing, later infill and newer subdivision development on top of one another, and the flat roofing follows that history. Older homes carry small low slope roofs over rear additions, side extensions and converted porches, usually the second or third membrane on the same deck. Newer streets contribute garage and portico decks along with modern flat roofed builds. The commercial side is retail plazas and low rise offices on the busier arterials, including the Highway 7 corridor, where wide membrane fields carry rooftop units, interior drains and a heavy load of kitchen exhaust. Those two building types fail in completely different ways and get quoted very differently.

What We Do on Richmond Hill Roofs

Repairs and replacements across Richmond Hill cover rear addition and garage decks, leak tracing on older homes with layered roofs, drain and scupper rebuilds, curb and exhaust penetration reflashing on plaza roofs, grease damaged membrane replacement, tapered insulation to correct ponding, plus emergency flat roof service at any hour.

Rear addition deck opened up for a new flat roof

Modified bitumen cap sheet laid on a replaced flat roof

Emergency repair to a parapet wall on a flat roof

Curb-mounted skylight flashed into a flat roof

Where Richmond Hill 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 Richmond Hill

Plaza roofs carrying kitchen exhaust belong on PVC, which resists grease where TPO softens. Wide clean commercial fields can take either. Small residential additions in Richmond Hill do best under a two ply modified bitumen membrane or EPDM, with liquid applied for tight, penetration heavy 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 Richmond Hill

The conditions that decide how long a roof here lasts, and what we detail differently because of them.

Restaurant exhaust on plaza roofs lays grease down around the fan curbs, and grease attacks membrane and seam welds long before ultraviolet or weather ever gets the chance.
Older additions have often been re roofed twice on the original deck, so the assembly is heavy, traps moisture between layers, and disguises where water is actually entering.
Mature trees on the older streets drop enough debris to plug a small scupper, and a rear addition deck with one outlet ponds quickly once that outlet clogs.

Recent Flat Roofing Projects

Real jobs photographed on site by the crews who did them.

Lumbered slope framing built over a flat roof deck in Toronto, view 1

Lumbered Slope Build and Two-Ply System, Toronto

Sep 1, 2026 | Slope Framing

A lumbered slope framed over a flat roof deck to move water toward the drains, with a two-ply system installed over it.

Flat roof membrane application detail in Toronto, view 1

Flat Roof Application Detail, Toronto

Sep 1, 2026 | General Application

A detail from a flat roof membrane application, showing the finished surface of the system.

Attic inspection and blown-in insulation above a flat roof in Toronto, view 1

Attic Inspection and Blown-In Insulation, Toronto

Sep 1, 2026 | Attic Insulation

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.

Cold-ply flat roof membrane with ceramic granule surfacing in Toronto, view 28

Flat Roofing in Richmond Hill: Best Systems for 2026

Aug 25, 2026 | Flat Roof Systems

A practical 2026 guide to flat roofing in Richmond Hill: best membrane systems, real installed costs, Ontario Building Code insulation and drainage rules.

Two-ply modified bitumen torch-down membrane on a Toronto flat roof, view 5

Flat Roof Repair in Richmond Hill: 2026 Guide

Aug 17, 2026 | Flat Roof Systems

Flat roof repair in Richmond Hill: 2026 price ranges, common membrane failures, repair or replace guidance, and permit rules for York Region homeowners.

Cold-ply flat roof membrane with ceramic granule surfacing in Toronto, view 23

Flat Roofing in York Region: Markham, Vaughan and Richmond Hill Guide

Aug 14, 2026 | Flat Roof Systems

Flat roofing in York Region explained: membrane options, 2026 costs for Markham, Vaughan and Richmond Hill homes, permit rules and repair versus replace signs.

Richmond Hill Flat Roofing Questions

Straight answers to what people ask us about a roof on this street.

Our Richmond Hill plaza roof is stained black around the exhaust fans. Does that matter?

Yes. That is grease from kitchen exhaust, and it breaks down membrane and seam welds from the surface downward. On Richmond Hill plaza roofs we replace grease damaged sections, upgrade the field around the fans to PVC where practical, and fit or repair grease containment at the curbs so the new membrane is not eaten the same way.

Should an old addition roof be repaired or replaced?

It depends what is under it. Plenty of Richmond Hill additions already carry two membranes on the original deck. If a cut test shows wet insulation or rotted sheathing, patching only moves the leak somewhere else. If the assembly is dry and one flashing or seam has failed, a repair is reasonable and buys real time. We open a test area before advising.

How is ponding on a flat roof corrected?

First we confirm why the water is sitting there: a blocked drain, a crushed insulation area, or a structural deck that has sagged between supports. Blocked outlets get cleared and rebuilt. Structural low spots are corrected during re roofing with tapered insulation that rebuilds fall toward the drains. On smaller Richmond Hill decks, adding a second outlet is sometimes the simpler answer.

Do you offer free quotes in Richmond Hill?

Yes, every quote is free and carries no obligation. We measure the roof, assess the assembly and its condition, look at drains, flashings and penetrations, and where it matters cut a test opening to see what lies underneath. You get a written scope for the Richmond Hill property with the system, the details and the warranty spelled out.

Nearby Areas We Also Cover

Flat roofing in the streets either side of Richmond Hill:
Thornhill • Markham • Maple • Aurora • 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.

      
 Excellent4.967 reviews
 4.9
 Excellent67 reviews
  Write a review 
 
 
 
   
 
 
      Posted on Google  
   
   David Albury 
 14 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Called Flat Roofs Toronto when I noticed water pooling on my flat roof. They came out the next morning, found a few soft spots and repaired everything the same visit. Price was very reasonable and they showed me photos of the work before and after. Good flat roof repair is hard to find in this city so I am keeping their number saved.
  
 
     Posted on Google  
   
   Jerry Crawford 
 16 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Needed our old skylight replaced on the flat roof and Flat Roofs Toronto handled it perfectly. Clean install, no leaks, and it actually looks way better than the old one. The team was friendly, showed up when they said they would, and cleaned everything up after. Great choice for skylight replacement on flat roofs in Toronto. Fair price too would happily recommend them to anyone
  
 
     Posted on Google  
   
   Regan Taylor 
 26 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Woke up to a leak dripping through my ceiling and Flat Roofs Toronto saved the day.They found the source fast,patched it up properly,and even checked the rest of the roof for weak spots. No upselling,no nonsense.If you've got a flat roof leak in Toronto, don't wait around just call these guys.Great service at a fair price. Highly recommend
  
 
     Posted on Google  
   
   Kenneth Eager 
 37 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Had some issues with my flat roof after that last storm, so I called Flat Roofs Toronto for a repair. They came out quickly, explained what was wrong, and fixed it the same day. Super friendly crew and very reasonable pricing. It's hard to find a good flat roof repair company in Toronto, so I'm glad I found these guys. Would definitely use them again.
  
 
     Posted on Google  
   
   Mark Rasmussen 
 40 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Just had my flat roof replaced by Flat Roofs Toronto and couldn't be happier. The crew showed up on time, worked fast, and left the place spotless. Price was fair compared to other flat roof replacement quotes I got around Toronto. No leaks, no drama, just a solid new roof. If you're looking for flat roof replacement in Toronto, these are your guys. Highly recommend!
  
 
     Posted on Google  
   
   Adam Kremer 
 63 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Called to replace a flat roof skylight that had given us too many problems. They were straightforward about the cost, came out on schedule and completed the replacement in about six hours. The new skylight is clean, well sealed and the installation quality is clearly better than what was there before
  
 
     Posted on Google  
   
   Thomas Pringle 
 73 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Flat roof skylight replacement done right, would use them again, FRT delivered
  
 
     Posted on Google  
   
   Michael Brown 
 105 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Had a flat roof skylight repair done after another roofing contractor's patch job failed. They were upfront about what had gone wrong with the previous repair and what the proper fix would be. Got it done right this time and the skylight has been leak free for eight months now
  
 
     Posted on Google  
   
   Jackie Hargrove 
 109 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Flat roof skylight replacement was exactly what we needed. Professional throughout, priced the job fairly and completed the installation cleanly and on schedule. New skylight looks great and the waterproofing around it is properly done. Been through a tough Toronto winter without any issues
  
 
     Posted on Google  
   
   Anna Leclair 
 112 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Called Flat Roofs Toronto for flat roof skylight replacement, clean job, fair price, very happy