- 819 777-7177
- info@toiturescossette.ca
- Licence RBQ:5697-7788-01
Cossette Roofing installs seamless aluminum gutters and eavestroughs on homes, condominiums, and commercial buildings throughout Gatineau, Ottawa, and the Outaouais. Each system is roll-formed on site in one continuous length to match the building’s exact measurements, then hung on heavy-duty hidden hangers with the slope and downspout placement calculated for the roof area it drains. Cossette has worked on roofs across the National Capital Region since 2005 and holds RBQ License 5697-7788-01.
Free on-site evaluation and written estimate — call 819-777-7177.
Seamless aluminum eavestroughs are formed on your property from a single coil of aluminum, so a 40-foot run has no joints along its length — only at the corners and the downspout outlets. Sectional gutters are sold in 10-foot lengths and joined with connectors, which puts a sealed seam every 10 feet. Every one of those seams is a place where sealant eventually fails and water begins to run behind the fascia. Cossette brings the forming machine to the property and cuts each run to the measured length of the wall it hangs on.
Aluminum is used instead of steel because it does not rust. In a climate with road salt, heavy snow, and repeated freeze-thaw cycles, corrosion is what ends the life of most older gutter systems. The factory-baked finish is colour-stable, so the system never needs painting.
Put plainly: a seamless system removes the majority of the potential leak points from a typical run, and the joints that remain are at corners and outlets where they can be sealed properly and inspected easily.
| Seamless aluminum (Cossette) | Sectional gutters | |
|---|---|---|
| Joints in a 40 ft run | None along the run — corners and outlets only | Roughly four, one every 10 ft |
| Where it is made | Roll-formed on site to your measurements | Pre-cut lengths joined on the ladder |
| Most common failure | Blocked outlet or hanger pull-out | Sealant failure at the seams |
| Material | Aluminum — does not rust | Often steel or vinyl — rust or UV cracking |
| Maintenance | Clear the outlets; no seams to re-seal | Seams need periodic re-sealing |
| Appearance | One clean line along the fascia | Visible connectors along the run |
In the National Capital Region, an eavestrough does its hardest work in March. Snow melts off the roof in volume during the day and refreezes overnight, and a trough that is undersized, badly sloped, or blocked at the outlet holds that meltwater exactly where it can freeze solid and back up under the shingle edge. Cossette’s roofers deal with the results of that cycle year-round — ice dams, water infiltration at the eaves, and rotted fascia — which is why slope and downspout placement are calculated during the estimate rather than decided on the ladder.
What a correctly installed gutter system prevents:
Replace your eavestroughs when the system leaks at more than one joint, pulls away from the fascia, or overflows during ordinary rain. Patching one seam on a system that is failing in several places buys a season at most. These are the signs a Cossette estimator looks for during the free evaluation:
If the fascia behind the gutter is soft or rotted, it is repaired or replaced before the new system goes up. A gutter is only as secure as the board it hangs on, and hanging new aluminum on failed fascia is the most common reason a replacement sags within two years.
Cossette installs seamless aluminum eavestroughs on residential, commercial, and industrial properties across Gatineau, Ottawa, and the Outaouais — the same property types the company roofs.
On new construction, Cossette coordinates the eavestrough with the roof edge and fascia detail while the trades are still on site, which avoids the retrofit compromises that come from hanging a system on finished work.
Every Cossette installation is quoted and installed as a complete drainage system, not just the trough. Each component is specified for the building rather than pulled off a standard parts list:
Cossette follows the same four-step process on gutter work as on roofing work:
Call 819-777-7177 or request a quote online. A Cossette estimator visits the property, measures every run, checks the condition of the fascia and roof edge, and identifies where water is currently going wrong.
You receive a written estimate covering trough profile and colour, the number and placement of downspouts, hanger spacing, and any fascia repair required before installation. No hidden fees.
The aluminum is roll-formed on your property to the exact length of each run, then hung on heavy-duty hidden hangers and pitched toward the outlets so water moves instead of standing. Downspouts are fastened to the wall and the discharge is directed away from the foundation.
The crew checks the flow, confirms slope and discharge, and clears every offcut, fastener, and length of scrap from the property before leaving.
Cossette Roofing has installed and repaired roofs in Gatineau, Ottawa, and the Outaouais since 2005 and holds RBQ License 5697-7788-01 from the Régie du bâtiment du Québec. The company has been BBB-accredited since August 2020 and carries full liability insurance on all work.
The reason that matters for gutters is the roof edge. The drip edge, starter course, fascia, soffit, and eavestrough all meet in the same few inches of the building, and that junction is where most eave leaks actually begin. A gutter-only crew installs to the fascia and stops there. Cossette assesses the whole assembly, because the same team is responsible for the roof above it.
Cossette installs seamless eavestroughs across the National Capital Region from two offices: 14 Rue Buteau, Gatineau, QC J8Z 1X4 and 201-117 Murray Street, Ottawa, ON K1N 5M5. Because the company is licensed and insured for work on both sides of the Ottawa River, property owners get the same crew and the same coverage regardless of province.
Not sure whether you are in the service area? Call 819-777-7177 and Cossette will confirm before scheduling an estimate.
They are the same thing. Eavestrough is the common Canadian term for the trough at the roof edge; gutter is used more widely across North America. In French, both are gouttière. Cossette installs the same seamless aluminum system whichever word you use.
Seamless gutters have fewer places to leak. A sectional system joins 10-foot lengths with connectors, putting a sealed seam every 10 feet, and those seals are the first thing to fail. A seamless run is formed from one continuous piece of aluminum, with joints only at corners and downspout outlets.
The cost depends on the total length of the runs, the number of storeys, how many downspouts the roof area requires, and whether any fascia repair is needed first. Cossette provides a free, no-obligation written estimate for every gutter project in Gatineau, Ottawa, and the Outaouais. Call 819-777-7177 or request a quote online.
No. Aluminum does not rust, which is why Cossette uses it instead of steel in a climate with heavy snow, road salt, and repeated freeze-thaw cycles. The factory-baked finish is colour-stable, so the system does not need painting.
Yes, and it is usually the right time to do it. The drip edge, starter course, fascia, and eavestrough all meet at the same few inches of roof edge, so replacing them together means the assembly is built as one system and the roof edge is only opened up once.
Replace them when the system leaks at more than one joint, sags away from the fascia, or overflows in ordinary rain. Rust streaks, split seams, spikes backing out of the fascia, staining on the soffit, and pooling water or soil erosion at the foundation are the signs a Cossette estimator looks for.
Yes. Cossette installs seamless aluminum gutter systems on retail buildings, office buildings, apartment buildings, condominiums, and industrial facilities, as well as on houses, townhomes, garages, and additions.
Yes. Cossette Roofing holds RBQ License 5697-7788-01 issued by the Régie du bâtiment du Québec, has been BBB-accredited since August 2020, and carries full liability insurance on all work. The company has operated in Gatineau, Ottawa, and the Outaouais since 2005.
Yes. Cossette works both sides of the Ottawa River from its Gatineau office at 14 Rue Buteau and its Ottawa office at 201-117 Murray Street, covering Ottawa, Kanata, Orléans, Stittsville, Embrun, Rockland, Clarence-Rockland, and Cornwall as well as Gatineau, Hull, Aylmer, and the Outaouais.
Because of the freeze-thaw cycle. Snow melts off the roof during the day and refreezes overnight, and a trough that is undersized, badly sloped, or blocked at the outlet holds that water where it freezes and backs up under the shingle edge. Correct slope and downspout placement are what keep meltwater moving.
Call 819-777-7177 or request a quote at toiturescossette.ca. A Cossette estimator visits the property, measures every run, checks the condition of the fascia and roof edge, and provides a detailed written estimate with no obligation.
Cossette Roofing is located at 14 Buteau Street, Gatineau, QC J8Z 1X4 and at 201-117 Murray Street, Ottawa, ON K1N 5M5. We serve Gatineau, Hull, Aylmer, Ottawa, Kanata, Orléans, Embrun, Clarence-Rockland, Cornwall and the entire Outaouais region.
819-777-7177
info@toiturescossette.ca
819-777-7177
5697-7788-01
Cossette Roofing offers free, no-obligation quotes for all residential and commercial roofing projects in Gatineau, Ottawa, and the Outaouais region. Fill out the form below or call 819-777-7177. Email: info@toiturescossette.ca