Roofing and roofers in Granby

Toiture Union is a roofing company serving Granby and the entire Haute-Yamaska region for the installation, repair and replacement of residential, commercial and multi-unit roofs. Our teams work on sloped roofs (asphalt shingles, metal roofing) as well as flat roofs (elastomeric and TPO membranes), with a valid RBQ licence, manufacturer warranties and a free quote. Whether you live downtown, in the Mountainview or Saint-Charles areas, in Domaine du Boisé or in the developments near Lake Boivin, we offer complete local service, from diagnosis to final installation.

Commercial roofing

Multiplex

Industrial

Membrane
elastomer

Residential roofing

Granby and its climate: why roofs are put to the test here

Granby is the seat of the La Haute-Yamaska RCM and the second-largest city in the Eastern Townships after Sherbrooke, with a population that has passed the 90,000 mark across its agglomeration. It is a growing city, which means both a lot of new construction and an aging housing stock that is reaching the age of roof replacement.

In climate terms, Granby has a humid continental climate (Köppen type Dfb), with annual precipitation of roughly 980 mm and cold winters marked by repeated freeze-thaw cycles. This alternation is a roof’s number one enemy. Snow accumulates, partially melts during the day, then the meltwater refreezes at night. Repeated all winter long, this weakens materials and opens up paths for water infiltration. The problems we see most often in Granby are:

Ice dams: meltwater builds up at the roof edge, freezes, and forces water back up under the shingles until it leaks into the attic.
Membrane cracking on flat roofs, caused by the extreme temperature swings between summer and winter.
Shingle lifting and tearing during the strong winds that sweep the Windsor-Quebec corridor.
Water infiltration at valleys, flashings and around chimneys, worsened by heavy summer rains.
Poor attic ventilation, which promotes condensation, ice formation and premature aging of the shingles.

A roof that is properly installed, well ventilated and fitted with adequate protective membrane at the eaves is the best defence against these conditions. That is exactly what we design for every home and building in Granby.

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450 464-1622

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How a roofing project works with Toiture Union

Transparency is at the heart of our approach. Here are the typical steps of a roof replacement project in Granby.

Inspection and free quote. We assess the condition of your roof, the slope, the area, the ventilation and the structure, then provide a clear, detailed quote.
Material selection. We present the covering, colour and warranty options suited to your building and your budget.
Planning. We set a date and prepare protection for the grounds, plantings and access points.
Removal of the old covering. We strip the old layers and inspect the deck for any hidden damage.
Installation. We install the protective membranes, the covering and the ventilation accessories, following the standards and the manufacturers’ recommendations.
Cleanup and final inspection. We fully clean the site, sweep for nails with a magnet, and review the quality of the work with you.

Why choose Toiture Union in Granby

Homeowners in Granby and the Haute-Yamaska choose us for our rigour, our certifications and our transparency. Here is what you get when you work with Toiture Union:

Valid RBQ licence and compliance with current standards.
Manufacturer-certified roofers: CertainTeed Shingle Master, BP Platinum certified and VicPro installer.
Warranties on both materials and workmanship.
Free, detailed quote, with no sales pressure.
Honest diagnosis: repair when it is enough, replacement when it is necessary.
Full experience across every type of roof: residential, multi-unit, commercial and industrial. See our achievements and our recognitions and certifications.

Our roofing services in Granby

We cover the full range of roofing needs, from the bungalow to the industrial building. Here are our main services offered in Granby and the Haute-Yamaska.

Residential asphalt shingle roofing

Asphalt shingles remain the most popular covering for Granby homes: affordable, durable, available in a wide range of colours and well suited to the Quebec climate. We install certified shingles from the major manufacturers (IKO, BP, CertainTeed), laid according to best practices: complete removal of the old covering, inspection of the deck, installation of a self-adhesive underlayment membrane at the roof edge to counter ice dams, then installation of the shingles and ventilation accessories. Learn more about asphalt shingle roofing.

Elastomeric membrane roofing for flat roofs

Flat and low-slope roofs are common in Granby on multiplexes, garages, extensions and some commercial buildings. For these surfaces, the two-ply elastomeric membrane is the benchmark: applied in two torch-welded layers, it offers superior watertightness, strong puncture resistance and a long service life. Discover elastomeric membrane roofing.

TPO membrane and commercial roofing

Granby’s businesses, apartment buildings and industrial facilities benefit from TPO membrane, a single-ply membrane known for its reflectivity (which reduces summer cooling costs), its light weight and its durability. We handle new installation, replacement and preventive maintenance of commercial roofs. Learn more about TPO membrane.

Metal roofing

Durable, elegant and highly resistant, metal roofing is ideal for cottages, prestige properties and buildings located around the waterways of the Haute-Yamaska. Properly installed, it can last several decades, sheds snow efficiently and requires little maintenance. See metal roofing.

Roof repair

Not every roof needs to be completely replaced. A localized leak, a loose flashing, a few missing shingles or a damaged valley can often be repaired. We start with an honest diagnosis: if a repair is enough, we will tell you. If the roof is at the end of its life, we will explain why replacement is more cost-effective in the long run.

Emergency roofing service

An active leak, shingles torn off after a storm or water damage cannot wait. Our emergency service responds quickly in Granby to secure your roof, seal the source and limit damage inside your property. Emergency roofing service.

Comparison of roofing types for Granby

Each type of covering has its strengths depending on the building, the budget and the slope of the roof. The table below summarizes the main options we install in Granby to help you compare quickly.

Roofing type	Estimated lifespan	Best for	Relative cost	Main advantage
Asphalt shingles	20 to 30 years	Homes and sloped roofs	$	Best value for money
Elastomeric membrane	25 to 35 years	Residential flat roofs and multiplexes	$$	Superior watertightness
TPO membrane	20 to 30 years	Commercial and industrial buildings	$$	Reflectivity and energy savings
Metal roofing	40 to 50 years and more	Cottages and prestige properties	$$$	Longest lifespan

These values are general estimates. Actual lifespan depends on the quality of the installation, the ventilation and the maintenance. During your free quote, we recommend the option best suited to your building and budget.

Frequently asked questions: roofing in Granby

How much does a new roof cost in Granby?

The cost depends on the area, the slope, the type of covering, the number of layers to remove and the condition of the structure. Asphalt shingles are the most economical option, while metal roofing is a higher investment but more durable. The only way to get a fair, reliable price is to request a free quote based on a real inspection of your roof.

When should a roof be replaced?

An asphalt shingle roof generally lasts 20 to 30 years. The signs to watch for are cracked, curled or missing shingles, granules in the gutters, water stains on the ceiling and deformation of the roofline. With Granby’s freeze-thaw cycles, an inspection is recommended as soon as these signs appear.

What is the best roof for a flat roof?

For flat and low-slope roofs in Granby, the two-ply elastomeric membrane and the TPO membrane are the most reliable choices. The elastomeric membrane is very robust and popular for residential use, while TPO is often preferred for commercial use for its reflectivity and energy savings.

How long does a roof replacement take?

Most residential shingle roofs are completed in one to three days, depending on the size of the roof, its complexity and the weather. Flat roofs and commercial projects may take longer. We give you a realistic timeline at the quote stage.

Do you offer an emergency service for leaks?

Yes. In the event of an active leak or storm damage in Granby, we respond quickly to secure your roof and prevent water damage inside the building.

Are you certified and insured?

Yes. Toiture Union holds an RBQ licence and our roofers are certified by the major manufacturers, with warranties offered on both materials and workmanship.

Do you work in winter?

Some roofing work can be done in the cold season, but shingle installation requires appropriate temperature and weather conditions to ensure lasting adhesion. We assess each case and, if needed, schedule the work for the best period while securing your roof in the meantime.

TESTIMONIALS

What our clients have to say

Toiture Union

3308 Rue Bernard-Pilon, Saint-Mathieu-de-Beloeil

5.0 116 reviews

Renee Bellavance ★★★★★ a year ago
I had a roof emergency. My neighbor had given me their name. I called and left a message Monday, got a first return call within 15 minutes then another one within the hour to schedule a meeting the next day. Roof was changed on Thursday. … More I got amazing service, the team who worked on my roof arrived on time did an amazing job at protecting my house and yard and left everything very clean. Honestly I have not seen outstanding service like that in a long time. Also their prices where great. I very highly recommend them.
Jeremiah Gordon ★★★★★ 3 years ago
Philippe and his team are absolute professionals. The initial inspection was very detailed and the quote was competitive. The final invoice had no surprises, matching the quote exactly. The work was completed in an efficient manner. All … More installers were very friendly and polite. The products used were modern and high quality. Almost as important, Philippe was very professional, knowledgeable and fun to deal with throughout the process.
Stephanie Brault ★★★★★ 4 years ago
Very professional. We received several quotes to change our roof and they had competitive prices. Our roof looks perfect and there was absolutely no mess once they left. Highly recommended!
David S. ★★★★★ a year ago
Totally satisfied by the work done on our roof. Very professional and competitive. Hervé was very responsive. Couldn’t be better.
TT WA ★★★★★ 5 years ago
Really professional service, quality team. Highly recommended.