Roof Replacement Oshawa — A Roof That Outlasts the Canadian Weather

A new roof is one of the smartest investments you can make in your Oshawa home — protecting everything underneath it and adding immediate resale value. We make the process transparent, fast, and stress-free.

When Is It Time for a Full Roof Replacement?

Patching works for isolated damage, but eventually every roof reaches the end of its service life. If you're seeing several of the signs below, replacement is usually the better value compared to repeated repairs:

• Your roof is 20+ years old — most asphalt shingles in Ontario last 15–25 years.
• Shingles are curling, cracking, or bald (lost their granules).
• Multiple leaks appearing in different areas of the home.
• Sagging roof deck visible from inside the attic or the street.
• Moss or algae growth eating into the shingle mat.
• Excessive granule loss filling your eavestroughs every season.
• You're selling the home and want to maximize value and pass inspection.

Roofing Materials We Install in Oshawa

Every Oshawa home is different — from century homes in the O'Neill district to new builds in Windfields. We install the right system for your roof pitch, budget, and the Ontario climate.

Asphalt Architectural Shingles

The most popular choice in Durham Region — great value, available in dozens of colours, and rated for Ontario's wind and snow loads. We install GAF Timberline HDZ and Owens Corning Duration lines, both backed by 30–50 year manufacturer warranties.

Metal Roofing

The longest-lasting residential roof you can buy — 50+ years, virtually maintenance-free, sheds snow and ice easily, and is increasingly popular in rural Courtice and North Oshawa. Higher upfront cost but the lowest lifetime cost of any roofing system.

Designer & Luxury Shingles

Want the look of slate or cedar shake without the upkeep? GAF Slateline and Owens Corning Woodcrest give upscale homes a premium look while staying impact- and wind-rated.

Our Roof Replacement Process

1. Free Inspection & Measurement

We walk the roof, photograph every square foot, measure precisely, and inspect the attic, decking, and ventilation. You receive a written condition report.

2. Itemized Fixed-Price Quote

No surprises. Your quote breaks down materials, labour, disposal, ventilation upgrades, and warranty registration. We review it with you line by line.

3. Property Protection

Before a single shingle comes off, we tarps your landscaping, driveway, AC units, and neighbour's property. Protection matters as much as the install.

4. Tear-Off & Deck Inspection

We strip down to bare plywood, inspect every sheet, and replace any rot — you only pay for what's actually damaged, with photos to prove it.

5. Premium Installation

Ice & Water Shield on all eaves and valleys (6 feet up, exceeding Ontario Building Code), synthetic underlayment, new drip edge, and shingles installed to exact manufacturer specifications — keeping your material warranty valid.

6. Magnetic Cleanup & Warranty Registration

We magnet-sweep the entire property, haul away all debris, register your manufacturer warranty, and hand over our 10-year workmanship guarantee in writing.

How Much Does a Roof Replacement Cost in Oshawa?

Pricing across the Durham Region depends on roof size (squares), pitch, number of existing layers to remove, and the material you choose. Here are typical 2026 ranges for an average Oshawa single-family home:

• Asphalt shingle replacement (avg. home): $6,000 – $16,000
• Steep-pitch or complex roof (multiple valleys/dormers): $12,000 – $22,000
• Designer/luxury asphalt shingles: $12,000 – $25,000
• Standing-seam metal roofing: $14,000 – $40,000+
• Roof deck plywood replacement: $150 – $300 per sheet (only as needed)

Every quote is free, itemized, and no-obligation. We also offer flexible financing to help spread the cost.

Why Oshawa Homeowners Trust Us With Their New Roof

• 10-year written workmanship warranty on top of manufacturer warranties.
• GAF & Owens Corning certified installation — your material warranty is fully valid.
• Local employees, not subcontractors — accountable crews who live in the Durham Region.
• $2M liability insurance + WSIB — full coverage for your peace of mind.
• 1–3 day installation on most homes, roof never left exposed overnight.
• Code-compliant ventilation — we size intake/exhaust correctly so your new roof lasts its full rated life.