Roof replacement in Laval and Montreal
Is your roof over 20 years old or showing serious wear? We handle the full replacement — deck inspection, repair of any damage, and installation of high-performance architectural shingles.
- ✔Full tear-off and disposal
- ✔Thorough plywood deck inspection
- ✔Premium architectural shingles
- ✔10-year workmanship warranty
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RBQ
Licensed & insured
Régie du bâtiment compliant
2M$
Liability coverage
Full job-site protection
10 years
Workmanship warranty
On our installations
★★★★★
Satisfied clients
Verified reviews
6+ ans
Of experience
Since 2020
300+
Roofs completed
In Montreal and nearby
Roof replacement
Replacing at the right time prevents expensive damage
A roof at the end of its life does not always give warning before it fails. On the island of Montreal as in Laval, Longueuil or Brossard, every season we meet homeowners who put off replacement until a leak has already damaged the attic or the interior walls.
At Toiture AM we assess the real condition of your roof and recommend a full replacement only when it is genuinely the most cost-effective option long term — otherwise we favour a targeted repair.
5 signs your roof needs replacing
Granule loss
Black grit collecting in the gutters: a sign the shingle is wearing out fast.
Curling shingles
Buckling or lifting at the corners: the covering is near the end of its useful life.
Missing shingles
Sections torn off by wind: leaks are about to follow.
Repeated leaks
Water stains on the ceiling despite spot repairs: the problem is structural.
Over 20 years old
Past that age, the shingle failure rate climbs quickly.
Why replacing at the right time pays off
Complete protection
Maximum watertightness against infiltration, mould and structural damage.
Property value
A new roof raises your home's resale value by 5 to 10%.
Thermal performance
Savings on heating costs thanks to better attic ventilation.
Up to 50 years of service
Shingles warrantied by the manufacturer against manufacturing defects.
Our 7-step replacement process
Free inspection
Full assessment of your roof's condition and precise measurements.
Detailed quote
Written estimate at a guaranteed fixed price — no surprises, no hidden fees.
Planning
Material selection and scheduling the best date for the work.
Preparation
Full protection of your property and setup of equipment.
Tear-off
Complete shingle removal, plywood inspection and any repairs needed.
Installation
Membranes, underlayment and architectural shingles installed to code.
Cleanup
Magnetic sweep of the grounds and a final walkthrough with you.
Premium architectural shingles we offer
BP Building Products
Mystique and Vanguard lines, engineered in Quebec.
- ✓50-year warranty
- ✓Built for the Quebec climate
IKO Roofing
Cambridge and Dynasty lines, excellent quality.
- ✓40–50 year service life
CertainTeed
Landmark line, strong high-temperature performance.
- ✓50-year warranty
GAF Timberline
Wide range of options, good value.
- ✓25–40 year warranty depending on line
Why choose Toiture AM for your replacement?
Since 2020 we have been replacing residential roofs across Greater Montreal with a transparent approach and no sales pressure.
- ✔
RBQ-certified roofers
Qualified crews carrying $2M civil liability insurance.
- ✔
Complete written warranties
10 years on workmanship, plus 25 to 50-year manufacturer warranties.
- ✔
Free estimate, no obligation
We come to you anywhere in Greater Montreal at no charge.
- ✔
Transparent pricing
The estimate price is the final price. No hidden fees.
What to know about roof replacement in Montreal
When does replacement become necessary?
Most residential roofs in Montreal last 20 to 25 years with a standard shingle, and up to 50 years with well-maintained premium architectural shingles. Past that point the failure rate climbs quickly: the protective granules wear away, the shingle turns brittle and loses its ability to shed water.
Catching the signs before it is too late
Beyond age, several concrete signs justify replacement: shingles curling or cupping at the corners, patches stripped of granules, persistent moss or mould, and above all repeated leaks despite spot repairs. On properties in Le Plateau-Mont-Royal and Ahuntsic, where many houses are decades old, these signs show up often on roofs never replaced since construction.
Tear-off: why it should never be skipped
A serious replacement always begins by stripping the old covering off completely, rather than laying a new layer over top. That step exposes the plywood deck and reveals any area softened by moisture, which is invisible from outside. On roughly 15 to 20% of the projects we complete in Montreal and Laval, some of the plywood has to be replaced before the new materials go on.
Ventilation: the factor too often forgotten
Replacing shingles without revisiting attic ventilation is a missed opportunity. A poorly ventilated attic accelerates wear on the new shingle and encourages ice dams in winter, a common problem on the low-slope roofs of Longueuil and Brossard. We take the opportunity to assess and, where needed, improve soffits and ridge vents.
Choosing the right material
The choice between a standard three-tab shingle and a premium architectural shingle comes down to your budget and how long you expect the roof to last. Architectural shingles cost more up front but typically last 10 to 25 years longer, which usually makes them the better value on a home you intend to keep.
Warranties: what to require from your roofer
A serious warranty covers both labour and materials. Toiture AM offers 10 years on workmanship, on top of the 25 to 50-year manufacturer warranties that come with the shingle you select. Always require a written warranty before signing a contract, whichever contractor you choose.
After the replacement: getting the most life out of it
Light preventive maintenance — an annual inspection, cleaning the gutters and checking the flashing — significantly extends the life of your new roof and protects the investment.
How much does a roof replacement cost?
For a typical single-family home, expect roughly $7,000 to $16,000 depending on surface area, slope, how many layers have to come off, and the materials you choose.
$7,000 – $16,000
Most residential replacements are finished in 1 to 3 business days.
Roof Replacement — Areas we serve
We work across the island of Montreal, in Laval and throughout the South Shore.
Frequently asked questions — Roof Replacement
Clear answers to the questions we get asked most about this service.
How much does a roof replacement cost in Montreal?
For a typical single-family home, expect roughly $7,000 to $16,000 depending on surface area, slope, how many layers have to come off, and the materials you choose. An on-site visit is always needed for a reliable figure.
How long does an asphalt shingle roof last?
A standard roof lasts 20 to 25 years, while premium architectural shingles can last 30 to 50 years. Attic ventilation and regular maintenance make a real difference at the top of that range.
How long does a roof replacement take?
Most residential replacements are finished in 1 to 3 days, depending on the roof's size, the complexity of the framing and the weather.
Can I install new shingles over the old ones?
The building code allows a maximum of two layers, but we almost always recommend a full tear-off so the deck can be inspected and no structural damage stays hidden.
Should I replace or repair my roof?
Heavy granule loss, brittle shingles over a large area and an age over 20 years all point to replacement being the better value. For recent, localised damage, see our roof repair page.
Also worth a look
Ready to start your roof replacement project?
Get in touch for a free inspection and a detailed quote built around your actual roof.