The Best Roofers in Ottawa

This guide compares 10 roofers serving Ottawa. The featured shortlist includes Markelangelo's Roofing, Wolfenburg Roofing, and Roofs of Steel, each a real, currently-operating Ottawa business selected for its local track record and public reviews.

Ottawa roofs take a beating: ice dams in January, freeze-thaw cycles that lift shingles, and summer heat that bakes them. The best roofers here install shingle, flat, and metal systems with proper ventilation and ice-and-water shield along the eaves, and they back the work with a real written warranty. The companies below handle full replacements, repairs, and flat-roof work for homes across the city, and most offer free inspections. Each is a currently-operating Ottawa business with public reviews, so you can confirm licensing, insurance, and warranty terms before you hire.

Typical Ottawa cost: $5,000 to $12,000 for a shingle reroof10 companies compared10 rated on Google

Featured professionals

Roofers worth considering

A focused Ottawa shortlist. Partners are labeled and shown first; all other placement follows real ratings.

Partners are always labeled. Sorting changes the order you see; placement cannot be bought.

More roofers

Also serving Ottawa

Buyer guide

Hiring a roofer in Ottawa

What separates a great roofer from a cheap quote, and the questions worth asking before you sign.

  • Insist on ice-and-water shield

    Ottawa's winters make ice dams a real risk. A proper reroof includes ice-and-water membrane along the eaves and in the valleys, not just felt. Ask the roofer to point it out on the quote.

  • Ventilation matters as much as shingles

    Poor attic ventilation cooks shingles from below and worsens ice dams. A good Ottawa roofer inspects intake and exhaust venting and includes any fixes in the plan.

  • Get the warranty in writing

    Separate the manufacturer's shingle warranty from the roofer's workmanship warranty. The workmanship warranty is the one that covers install errors; confirm its length in writing.

  • Confirm insurance before anyone is on the roof

    Roofing is high-risk work. Make sure the company carries liability insurance and WSIB coverage so you are not exposed if someone is hurt on your property.

Common questions

Roofers in Ottawa, answered

How much does a new roof cost in Ottawa?
A typical asphalt shingle reroof on an Ottawa home runs roughly 5,000 to 12,000 dollars depending on size, pitch, and how many old layers must come off. Metal and flat systems cost more; get a written, measured quote.
How long does a shingle roof last in Ottawa?
Architectural asphalt shingles usually last 20 to 25 years in Ottawa's climate, though ice dams and poor ventilation can shorten that. Metal roofs can last 40 to 50 years.
What are the signs I need a new roof?
Curling or missing shingles, granules collecting in the eavestroughs, daylight or stains in the attic, and repeated leaks all point to a roof near the end of its life. Book an inspection before the damage reaches the deck.
Can a roof be replaced in winter in Ottawa?
Roofs can be installed in cold weather, but shingles seal best above about 5C, and deep snow complicates the work. Most Ottawa roofers prefer spring through fall; emergency repairs happen year-round.
Do Ottawa roofers offer free inspections?
Many do, especially before a possible replacement. A thorough inspection should cover the shingles, flashing, venting, and the attic, and come with photos and a written assessment.

Roofers by area

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