- 819 777-7177
- info@toiturescossette.ca
- Licence RBQ:5697-7788-01
Cossette Roofing installs and replaces siding on homes, condominiums, and commercial buildings across Gatineau, Ottawa, and the Outaouais [CONFIRM materials offered — e.g. vinyl, aluminum, engineered wood]. Siding is the building’s outer skin: it sheds rain and snow off the walls, protects the structure and insulation behind it, and sets how the property looks from the street. Cossette has worked on building exteriors 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.
Siding is the wall’s weather barrier and its finished face in one. It sheds rain and meltwater down and away from the sheathing, shields the insulation from wind and moisture, and closes the walls against insects and rodents. When siding fails, the damage rarely stays cosmetic — water gets behind the panels, soaks the sheathing, and travels into the wall cavity where it feeds rot and mould long before anything shows on the surface.
The same climate that kills gutters and fascia works on siding: freeze-thaw. Water that gets behind or between panels freezes overnight and expands, opening joints a little wider every cycle. Add road salt spray near driveways and streets, UV exposure that turns older vinyl brittle, and the impact load of ice sliding off rooflines, and siding in the National Capital Region ages faster than the same product would in a milder climate. That is why the details — flashing, overlaps, and the junctions at the roofline — matter more here than the panel brand.
The most vulnerable line on the whole wall is where the siding meets the roof: at gable ends, along step flashing, and under the soffit. Water that escapes the roof edge runs straight into that junction. Cossette works both sides of that line — the roof above and the wall below — which is why siding, soffit, and fascia are quoted as one exterior envelope when more than one of them needs work.
Replace siding when panels are cracked, warped, loose, or letting water reach the wall behind them — repainting or re-nailing failing siding treats the symptom, not the leak. A Cossette estimator checks for:
Isolated storm damage on otherwise sound siding can be repaired panel-by-panel. Once cracking or buckling shows on several walls, the material has aged out and section patching becomes a repeating cost — replacement is the honest fix.
It depends on the wall, the budget, and what the siding has to survive. In prose for the page (the table below is also published):
Vinyl is the most economical full-replacement option and never needs painting, but economy grades turn brittle in deep cold — grade matters more than brand in this climate. Aluminum does not rust despite road salt and freeze-thaw, carries a colour-stable factory finish, and pairs naturally with aluminum soffit and fascia so the whole exterior reads as one trim package. Engineered wood gives the warmth of wood siding with better moisture behaviour than natural board, provided the flashing and ground clearances are installed to spec. [CONFIRM final material lineup — delete any option Cossette does not install]
Rotted fascia is repaired or replaced before any new eavestrough 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.
| Vinyl | Aluminum | Engineered wood | |
|---|---|---|---|
| Best for | Budget-conscious full re-sides; wide colour choice | Durability near roads and salt; fire resistance; matches aluminum soffit/fascia trim | The look of wood with better moisture resistance |
| Climate note | Older/economy grades turn brittle in deep cold | Does not rust; dents from impact but doesn’t crack in cold | Needs correct flashing and clearances to perform |
| Maintenance | Wash; no painting | Wash; factory finish, no painting | Periodic repainting/re-sealing per manufacturer |
| Lifespan | Decades, grade-dependent | Decades; finish is colour-stable | Decades with maintenance |
Every job is quoted as a complete wall system, not a panel count:
Call 819-777-7177 or request a quote online. An estimator walks every wall, checks the condition of the existing siding and the junctions at the roofline, and identifies where water or pests are getting in.
You receive a written estimate covering material and colour, wall-by-wall scope, flashing and trim details, and any sheathing repair contingency. No hidden fees.
Old siding comes down, the wall behind it is inspected and repaired as needed, and the new siding goes up with flashing and trim installed in the correct sequence.
The crew checks every course, corner, and junction, and clears all debris, offcuts, and fasteners from the property before leaving.
Because the wall’s worst leaks start at the roof. Gable ends, step flashing, and the soffit line are where roof water meets wall cladding, and a siding-only crew installs up to that line and stops. Cossette is responsible for both sides of it — the roof above and the wall below — so the junctions that actually fail get built as one assembly instead of two trades’ boundary.
Cossette installs and replaces siding 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.
Cossette installs [CONFIRM — e.g. vinyl, aluminum, and engineered wood] siding on residential and commercial buildings across Gatineau, Ottawa, and the Outaouais. The estimator recommends the material based on the wall, the exposure, and the budget during the free evaluation.
Replace siding when panels are cracked, warped, loose, or letting water through — fading, chalking, buckling, and moisture or peeling paint on interior walls are the common signs. Isolated storm damage can be repaired; cracking across several walls means the material has aged out.
It depends on the material and the temperature. Vinyl gets brittle in deep cold and is usually best installed in warmer months, while other materials tolerate cold-weather installation better. Cossette schedules siding work for conditions the material can handle. [CONFIRM winter policy]
When more than one of them is due, yes. Siding meets the roof at the gables, the step flashing, and the soffit line, and rebuilding those junctions as one assembly — with one crew and one colour package — is cheaper and tighter than staging separate trades.
The one matched to the exposure. Aluminum does not rust despite road salt and freeze-thaw and never needs painting; quality-grade vinyl is economical and low-maintenance; engineered wood gives a wood look with better moisture behaviour. Grade and installation detail matter more here than brand.
The cost depends on the wall area, the material and grade, the number of storeys and openings, and whether sheathing repair is needed once the old siding comes off. Cossette provides a free, no-obligation written estimate for every siding project. Call 819-777-7177.
It helps most by fixing the wall behind it. Replacing siding is the opportunity to restore the weather barrier and address damaged sheathing, which cuts drafts and moisture in the wall cavity. Insulated siding or added exterior insulation can be quoted where the wall calls for it. [CONFIRM insulation offering]
Yes — wind-driven rain and roof-edge overflow both get behind failing siding, and in this climate that water freezes and pries the joints wider every cycle. That is why flashing and the roofline junction matter more than the panels themselves, and why interior wall stains often trace back to siding.
Yes. Loose panels and gaps at corners, trim, and the soffit line are entry points for mice, squirrels, and wasps. A correct installation closes those gaps with fitted trim and sealed junctions.
Yes, where the rest of the siding is sound — storm and impact damage is often repaired wall-by-wall. Colour match on aged siding is the honest caveat: the estimator will tell you whether a section repair will blend or stand out. [CONFIRM]
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.
Call 819-777-7177 or request a quote at toiturescossette.ca. A Cossette estimator walks every wall, checks the roofline junctions, and provides a detailed written estimate with no obligation.
Siding is the wall’s weather barrier, and in the Outaouais it fights freeze-thaw, road salt, and UV — so cracked, warped, or loose panels mean water is already working on the wall behind them. Cossette Roofing replaces siding as a complete wall system — barrier, flashing, trim, and the roofline junctions — with the same RBQ-licensed crew responsible for the roof above it, across Gatineau, Ottawa, and the Outaouais since 2005.
Book your free on-site evaluation: call 819-777-7177 or request a quote at toiturescossette.ca.
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