A residential asphalt shingle roof replacement in Gatineau typically costs between $8,000 and $20,000, depending on roof size, pitch, and material grade. A metal roof runs $15,000 to $35,000 or more for a comparable home. A flat elastomeric membrane replacement on a residential property typically costs $5,000 to $15,000. These are installed costs including tear-off, new decking repairs if needed, underlayment, materials, labour, and cleanup.
What Factors Determine Roof Replacement Cost in Gatineau?
Roof size is the primary cost driver. Gatineau-area homes typically have roof surfaces ranging from 150 to 300 square metres (roughly 1,600 to 3,200 sq ft). Most contractors price roofing by the roofing square (approximately 9.3 sq m or 100 sq ft), and material and labour costs are calculated on a per-square basis.
Roof pitch significantly affects labour cost. A low-pitch roof (under 4:12) is faster and safer to work on. A steep-pitch roof (over 8:12) requires additional safety equipment, slower installation, and carries a labour premium of 20 to 40% over a standard-pitch roof. Mansard roofs and complex geometries with multiple valleys, dormers, and hips add further cost.
Material grade is the third major variable. Standard three-tab shingles are the lowest cost option but are rarely installed on new work in Quebec today. Architectural (laminate) shingles are the current standard, with pricing varying based on manufacturer and warranty class. Premium shingles (50-year and lifetime grades from IKO, Owens Corning, and BP Canada) cost 25 to 40% more than entry-level architectural shingles.
Deck condition affects cost directly. If the plywood or OSB decking is damaged by moisture, sections need to be replaced before new shingles are installed. Decking replacement adds $3 to $6 per square foot of affected area. A professional inspection of the existing deck is part of every Cossette Roofing tear-off project.
Roof Replacement Cost by Material Type
Architectural asphalt shingles are the most cost-effective residential roofing option in Gatineau. A complete replacement on a 185 sq m (2,000 sq ft) roof surface typically runs $9,000 to $14,000 installed with a mid-grade shingle product.
Metal roofing has a higher upfront cost but a significantly longer lifespan (40 to 60 years vs. 20 to 30 for shingles). Pre-painted steel shingles on a comparable 185 sq m residential roof run $18,000 to $28,000 installed. Standing seam metal panels are at the higher end of this range. Over a 40-year window, the total cost of ownership for metal roofing is often comparable to or lower than two shingle replacement cycles.
Elastomeric membrane flat roofing on a 60 sq m (650 sq ft) residential flat roof typically costs $5,000 to $10,000 for a full two-ply replacement. Larger commercial flat roofs are priced by the square metre and vary based on insulation requirements, drain configuration, and membrane grade.
Cedar shake and specialty shingle products (recycled rubber, slate-profile) are premium options with installed costs typically 50 to 100% higher than architectural asphalt for comparable coverage.
Does RBQ Licensing Affect Pricing?
In Quebec, roofing contractors must hold a valid Régie du bâtiment du Québec (RBQ) license to legally perform residential or commercial roofing work. Hiring an unlicensed contractor is illegal and voids your home insurance coverage for any work performed. Licensed contractors carry the required liability insurance and follow building code requirements — both of which protect you as the property owner.
Cossette Roofing and Renovations holds RBQ License 5697-7788-01. All projects include a written contract, proper permits where required, and are covered by the contractor’s liability insurance.
Frequently Asked Questions
How much does a shingle roof replacement cost in Gatineau in 2025?
A residential asphalt shingle roof replacement in Gatineau typically costs $8,000 to $20,000, depending on roof size, pitch, and shingle grade. Most average-sized homes (185-230 sq m of roof surface) fall in the $10,000 to $16,000 range for a mid-grade architectural shingle.
Is metal roofing worth the extra cost in Quebec?
For most Gatineau homeowners planning to stay in their home long-term, metal roofing is worth the investment. The upfront cost is roughly double that of shingles, but metal lasts 40 to 60 years — meaning you avoid one or two complete shingle replacement cycles over the life of your home.
Can I get a free estimate for a roof replacement in Gatineau?
Yes. Cossette Roofing and Renovations provides free written estimates for all residential and commercial roofing projects in Gatineau, Ottawa, Hull, Aylmer, and the Outaouais region. Call 819-777-7177 or submit a quote request online.
Does Quebec homeowner insurance cover roof replacement?
Home insurance in Quebec covers sudden and accidental damage (storm, hail, wind) but does not cover roof replacement due to normal aging or wear. Confirming your coverage terms with your insurer before a replacement project is always recommended.