A flat roof that can last up to 40 years. By a roofing contractor established since 1998.
The right membrane choice
TPO or elastomeric?
You don’t have to decide alone: the representative who climbs onto your roof recommends the membrane based on the structure, the use and the budget, no jargon.
Get your free quote
owner, 16 years in the trade
Why Toitures Alto?
Expertise, speed and transparency, on every roof.
Our sheet metal comes from our own shop
Most leaks start at flashings, seams and skylights. Ours is fabricated in Saint-Léonard and ready in 36 hours: one crew responsible for watertightness, from the membrane to the metal.
A company that will still be here in 20 years
A 20-year warranty is only worth something if the company is still around to honour it. In business since 1998, family succession in place, on the job sites.
A client treated like our own home
“We want every client treated as if it were our own home.” Photos to back every decision, and roofers who’ve been with us for 7, 8, 10 years and more.
How it works
A proven process, no detours
The visit and the photos
A team member climbs onto your roof, measures it and photographs it. You see its real condition, backed by photos.
The detailed quote
A line-by-line price, presented in person. You know exactly what’s included, no surprises.
The job, in 1 to 2 days
The roof is opened, redone and closed back up. This timeline applies to a plex or a small business up to 4,000 sq ft.
A few words from our clients.
“Everything went flawlessly. The work was done with care and within the announced timeline. A professional team you can count on.”
“The new roof was installed professionally and safely. But what also deserves attention: a repair under warranty eleven years later, with courteous, fast and efficient service. A reliable company I recommend without any hesitation.”
“Professional work. The guys were punctual, meticulous, respectful of the property. Very satisfied customer!”
They trusted us with their roofs
Free quote
Your quote, your roof in photos
A team member climbs onto your roof, measures it and photographs it, then shows you its real condition and presents the solution in person. You decide afterward, no pressure. When the work is done, you receive the complete photo file (before, during, after) along with your warranties.
- 20-year TPO warranty, labour and manufacturer
- Elastomeric membrane warranted 10 and 15 years
- Warranty registered to the building address
- GAF Master certification
- RBQ licence 8259-8988-52
- $2M civil liability insurance
- Member of a prevention mutual (CNESST)
- Free detailed quote
Prefer to call? 514 323-1000
Request your quote
A complete flat roof, installed by a single crew
Whether it’s a new roof or a re-roofing, an Alto flat roof includes everything that makes it last, not just the membrane:
The membrane, chosen for your roof
Single-ply white TPO (GAF or IKO), up to 40 years of service life, warranted 20 years labour and 20 years manufacturer. Or two-ply elastomeric, warranted 10 years labour and 15 years manufacturer.
A white roof, already compliant
In Montreal, regulations require a white roof during a re-roofing. TPO is white from the start: compliance is handled at the same time.
Real insulation under the membrane
High-density or polyisocyanurate, never a simple filler board. It’s invisible on a poorly detailed quote, and that’s where the price gaps hide.
Slopes that lead water to the drain
Water that flows instead of pooling means a membrane that ages more slowly and fewer leaks.
Sheet metal made in our shop
Flashings, metal and skylights ready in 36 hours, installed by the same crew, no subcontractor.
A one- to two-day job
For a plex or a light building: the roof is opened, redone and closed back up, without leaving your building exposed for weeks.
A photo file, before and after
You see what was done, and the written warranty is registered to the building address.
Emergency
Is your roof leaking right now?
Six crews on the road handle active leaks as a priority, Monday through Saturday.
514 323-1000Frequently asked questions
How long does a flat roof last?
Well designed and well installed, a flat roof can last up to 40 years. The TPO membrane is warranted up to 20 years (labour and manufacturer), elastomeric 10 or 15 years. The real lifespan depends on the structure, the membrane and maintenance.
TPO or elastomeric: which one to choose?
Both are excellent membranes. The right choice depends on the building’s structure, how the roof is used and your budget. The representative who climbs onto your roof recommends the right solution, no jargon.
My roof is leaking right now. Can you step in quickly?
Yes. Six crews are on the road Monday through Saturday and handle active leaks as a priority. Call us, or check “it’s leaking right now” on the form to be handled as a priority.
How is the price set?
Every roof is different: the area, the condition of the structure and the chosen membrane all affect the price. A team member climbs onto your roof, measures it and photographs it, then gives you a detailed, line-by-line quote, no surprises.
Are you licensed and insured?
Yes. Toitures Alto holds RBQ licence 8259-8988-52, GAF Master certification, $2M civil liability insurance and is a member of a prevention mutual (CNESST). The company has been established in Saint-Léonard since 1998.
Which areas do you serve?
Montreal, the South Shore and the North Shore — Longueuil, Brossard, Boucherville, Blainville, Boisbriand, Terrebonne, Mascouche and the surrounding areas. Not sure about your area? Call us and we’ll confirm.