Whether you own a home in Gatineau, Hull, Aylmer, or across the river in Ottawa, finding a reliable roofing contractor is one of the most important decisions you will make as a homeowner. The Gatineau-Ottawa region sits on a climatic fault line — Quebec winters, heavy snowfall, dramatic freeze-thaw cycles, and summer storms all put your roof through conditions that demand professional installation and high-quality materials. Hire the right contractor and your roof will perform for 25 to 40 years. Hire the wrong one and you could be dealing with water infiltration, structural damage, and voided warranties within a few years.
This guide walks you through everything you need to know before hiring a roofing contractor in the Gatineau-Ottawa area: licensing requirements, what to look for in a quote, red flags to avoid, how costs break down, and why local expertise matters more than price alone.
Why Licensing Matters When Hiring a Roofer in Quebec
In Quebec, any contractor performing roofing or construction work must hold a valid licence issued by the Régie du bâtiment du Québec (RBQ). This is not optional — it is the law. An RBQ licence confirms that the contractor has passed examinations in safety management, administrative management, and construction work management, and has demonstrated financial solvency. It also means the contractor carries the required insurance and has no outstanding serious complaints on record.
The consequences of hiring an unlicensed roofer are serious. If something goes wrong — water infiltration, a structural failure, or a job site accident — you will have very limited legal recourse. Homeowner insurance policies often contain exclusions for work performed by unlicensed contractors. You may also face liability if a worker is injured on your property and the contractor was not properly insured.
Before signing any roofing contract, homeowners should verify the contractor’s RBQ licence number using the official RBQ licence holders registry. Always confirm the licence is active and covers roofing work before proceeding.
Cossette Roofing holds RBQ Licence 5697-7788-01 and has maintained it since the company was founded in 2005. The licence is displayed on all estimates, contracts, and signage as required by law.
What to Look For in a Gatineau-Ottawa Roofing Contractor
RBQ Licence and Insurance
Never hire a roofer who cannot produce a valid RBQ licence number. Full liability insurance is equally essential — it protects your property if something goes wrong during the project. Ask for the certificate of insurance specifically, not just a verbal assurance. A legitimate contractor will have no hesitation providing both documents before work begins.
Local Experience in the Outaouais Climate
The Gatineau-Ottawa area presents unique roofing challenges that a contractor from a milder climate simply may not understand. Temperature swings from -30°C in winter to +35°C in summer place enormous stress on roofing materials. Heavy snow loads — Gatineau averages over 200 cm of snowfall per year — require proper structural planning. Ice dam formation along low-pitch eaves can force water under shingles if the underlayment is not correctly installed. High summer humidity accelerates attic moisture buildup without proper ventilation.
Cossette Roofing has operated exclusively in the Outaouais and Ottawa regions since 2005, giving the team over 20 years of direct, hands-on experience with these specific conditions. The team understands which materials perform best in the local climate, which ventilation configurations prevent ice dams, and how Quebec building codes address these concerns.
Manufacturer Certifications
Leading shingle manufacturers like GAF, IKO, and CertainTeed offer tiered warranty programs that provide the best coverage only when the installation is performed by a certified contractor. Cossette Roofing is a GAF Factory-Certified Contractor, which means qualifying customers can access enhanced system warranties that go beyond what any standard installer can offer. If your roofer is not certified by the manufacturer whose product they are installing, you may be leaving significant warranty protection on the table.
A Detailed Written Quote
A professional roofing quote should be specific enough that you could hand it to a second contractor and they would know exactly what work is being done. It must include the full scope of work, materials specified by brand and model, removal and disposal of existing roofing layers, underlayment and ice-and-water shield specifications, attic ventilation notes, projected start and completion dates, warranty terms for both materials and workmanship, and a total price with no hidden fees. A vague quote — or a verbal estimate only — is a red flag at any price point.
BBB Accreditation and Verified Track Record
BBB accreditation means a business has met defined standards for transparency, responsiveness to customer complaints, and ethical conduct. Cossette Roofing has been BBB-accredited since 2020. With over 10,000 residential and commercial projects completed across the Outaouais since 2005, the company has a verifiable local track record that you can cross-reference through Google reviews, the BBB, and direct references.
Gatineau vs. Ottawa: Key Roofing Differences
The Ottawa River is more than a geographic boundary — it is a regulatory boundary that directly affects who can legally work on your roof. Gatineau falls under Quebec building codes and regulations, while Ottawa properties follow Ontario codes. If your property is in Gatineau, Hull, Aylmer, Buckingham, or anywhere in the province of Quebec, your roofing contractor must hold a valid RBQ licence issued by Quebec. An Ontario contractor without Quebec licensing cannot legally perform work on your property, regardless of how competitive their price may be.
The code differences also affect the work itself. Quebec’s building code has specific requirements for ice-and-water shield installation at eaves and valleys, attic ventilation ratios, and underlayment standards — all informed by the region’s severe winters. A contractor who works exclusively in Ottawa and Ontario may install to Ontario standards, which do not always match Quebec’s stricter cold-climate requirements. Cossette Roofing is fully licensed and experienced on both sides of the river and installs to the appropriate code for each property’s jurisdiction.
Roofing Services Available Across the Outaouais and Ottawa
Cossette Roofing covers the full spectrum of residential and commercial roofing needs across Gatineau, Hull, Aylmer, Kanata, Orléans, Embrun, Clarence-Rockland, Cornwall, and the entire Outaouais region. Full roof replacements in architectural asphalt shingles, metal, or flat roof systems are the most common projects, but the team also handles targeted storm damage repairs, elastomeric membrane installation and repair for flat roofs, attic insulation and ventilation corrections, emergency water infiltration response, and commercial re-roofing for institutional and industrial properties.
Every project starts with a free on-site evaluation. Cossette’s certified roofers inspect the existing roof condition, measure the area, assess ventilation and insulation, identify any structural concerns, and present a detailed written estimate with no obligation to proceed.
For a full overview of every service offered across the region, visit the Cossette Roofing services page.
How Roofing Costs Break Down in Gatineau and Ottawa
One of the most common questions homeowners ask is why roofing quotes vary so widely between contractors. Understanding how costs are structured helps you evaluate whether a quote is genuinely competitive or suspiciously cheap. The main cost drivers for any roofing project in the Gatineau-Ottawa area are roof area (measured in squares — one square equals 100 square feet), roof pitch and complexity, the number of existing layers to remove and dispose of, material grade and manufacturer, and the extent of any underlying deck repairs needed.
Labour costs in the Gatineau region are also influenced by seasonal timing. Projects performed in spring and fall — the peak roofing season — tend to have slightly less flexible pricing than off-season work. Emergency repairs command a premium regardless of season. As a general reference, architectural asphalt shingle replacement is the most cost-effective option for most residential roofs, followed by metal roofing, which carries a higher upfront cost but a significantly longer lifespan. Elastomeric membrane flat roof systems are priced by the complexity of the installation rather than simply by square footage.
Cossette Roofing provides free, no-obligation written estimates for every project. There are no hidden fees and no pressure to decide on the spot.
Red Flags to Avoid When Hiring a Roofer
Several warning signs should stop you from proceeding with a roofing contractor. No RBQ licence number provided — or a refusal to show proof of insurance — are immediate disqualifiers regardless of how low the price may be. Be equally cautious of contractors who request large cash payments upfront, provide only a verbal estimate with no written breakdown, use high-pressure tactics like ‘today only’ pricing, or cannot produce a verifiable local business address with a history in the region.
Door-to-door solicitation after a storm is one of the most common tactics used by out-of-region operators looking to take advantage of homeowners with visible damage. These contractors may disappear after taking a deposit, perform substandard work, or both. Always call a contractor you have researched in advance rather than someone who knocked on your door.
Getting Your Free Estimate
Cossette Roofing provides free, no-obligation on-site evaluations for all residential and commercial properties in Gatineau, Hull, Aylmer, Ottawa, Kanata, Orléans, Embrun, Clarence-Rockland, Cornwall, and throughout the Outaouais. A certified roofer visits the property, inspects the roof from the ground and from above where needed, measures the area, and prepares a full written estimate with material specifications and warranty terms.
Call 819-777-7177 or request a free estimate online to get started.
Frequently Asked Questions
Do roofing contractors in Quebec need to be licensed?
Yes. All roofing contractors working in Quebec must hold a valid RBQ (Régie du bâtiment du Québec) licence. You can verify any contractor’s licence for free on the RBQ website before signing a contract. Working with an unlicensed contractor puts you at legal and financial risk if something goes wrong.
Can an Ottawa-based contractor work on my Gatineau roof?
Not without a valid Quebec RBQ licence. Ontario contractors must obtain Quebec licensing to legally perform work on properties located in Quebec. An Ontario licence does not satisfy Quebec’s requirements. Always verify the RBQ licence number before hiring any contractor for a Quebec property.
How much does a roof replacement cost in Gatineau?
Costs depend on roof size, pitch, material choice, number of existing layers to remove, and the extent of any deck repairs needed. Architectural asphalt shingles are generally the most affordable option per square foot. Metal roofing costs more upfront but lasts longer. Elastomeric membrane flat roofing is mid-range in price with a 35 to 40 year lifespan. Cossette provides free written estimates for all projects with no hidden fees.
How long does a roof last in Quebec’s climate?
Properly installed architectural asphalt shingles typically last 25 to 30 years in the Gatineau-Ottawa region. Metal roofing can last 50 years or more. Elastomeric membrane flat roofing lasts 35 to 40 years. Gatineau’s freeze-thaw cycles, heavy snow loads, and ice dam formation make proper installation — especially underlayment, ventilation, and flashing — critical to achieving the full rated lifespan.
Does Cossette Roofing offer emergency service?
Yes. Cossette Roofing provides 24/7 emergency roofing service for water infiltration, storm damage, ice dams, and snow load emergencies throughout Gatineau, Ottawa, and the entire Outaouais. Call 819-777-7177 at any time, including nights, weekends, and holidays.
Cossette Roofing — RBQ Licence 5697-7788-01 — 819-777-7177 — toiturescossette.ca