Best Roofing Companies in Ottawa

Ottawa roofs take a beating. Harsh winters bring heavy snow loads, ice dams, and freeze-thaw cycles that work against shingles and membranes year after year.

The city has a solid mix of long-established firms and newer specialists. Some focus entirely on flat commercial roofs, others handle every material from asphalt shingles to standing-seam metal.

Price matters, but it should not be the only factor. A contractor who cuts corners on underlayment or skips proper ventilation can leave a homeowner with a leaking roof inside two years. Reputation, warranty terms, and job-site practices all count.

The nine companies below all have genuine track records in Ottawa, covering a range of specialties so homeowners can find a good fit.

1. Roofmaster Ottawa Inc.

Roofmaster has operated in Ottawa since 1981 and has completed tens of thousands of residential and commercial jobs across the region. The company handles asphalt shingles, metal roofing, flat roofing, and composite systems, and also covers eavestrough installation, soffit and fascia, and snow removal.

Most residential shingle replacements are completed in a single day. Roofmaster is well reviewed on Google and HomeStars, and the service area covers Kanata, Orleans, Barrhaven, Kemptville, and Carleton Place.

For homeowners who want a full-service contractor with a single team that can handle more than just the roof deck, Roofmaster is a strong starting point.

2. Sanderson Roofing

Sanderson Roofing has been operating in Ottawa for well over a century and is one of the oldest roofing companies in the region. The family-owned firm specialises in residential and commercial flat roofing, working with modified bitumen, EPDM, TPO, and PVC membrane systems alongside fibreglass architectural shingles.

The company serves Ottawa, Kanata, Nepean, Orleans, and West Carleton. For homeowners with low-slope or flat-section roofs, Sanderson has the depth of experience to diagnose drainage problems and specify the right membrane for local freeze-thaw conditions.

3. Vanity Roofing

Vanity Roofing covers shingle, metal, and flat roofing for residential clients across Ottawa and surrounding communities. Their metal panel work is notable: the team uses an on-site roll-forming machine to manufacture panels at the job site, allowing custom lengths without seams.

For flat roofs, Vanity installs modified bitumen systems suited to Ottawa winters. The company carries an A+ rating with the Better Business Bureau and offers a 24-hour emergency repair line for storm damage.

Homeowners looking for a single contractor across all three roof types will find them a practical choice.

4. Rainbow Roofing and Renovations

Rainbow Roofing has served the Ottawa area since 1987 with a focus on residential asphalt shingle work, though the company also handles commercial projects, skylight installation, chimney cap replacement, and roof ventilation. As a certified installer through a major manufacturer, the warranty coverage available to clients extends beyond standard terms.

Rainbow has a strong presence in the west Ottawa communities of Barrhaven, Kanata, Stittsville, and Nepean. Customer reviews consistently mention clean job sites and accurate quotes. Decades of local history make them a reliable option for residential shingle replacement.

5. Remember Me Roofing Inc.

Remember Me Roofing has served Ottawa since 2011 and holds GAF Master Elite certification, a designation fewer than two percent of Canadian roofing contractors earn. That certification unlocks access to GAF's strongest warranty options, including the Golden Pledge limited warranty.

Services cover asphalt shingle installation, metal roofing, repairs, flashing, soffit, and gutter work. They also handle roof heating systems for homes with persistent ice dam problems. For homeowners who prioritize manufacturer-backed warranty coverage, Remember Me Roofing is worth an early call.

6. Geerts Roofing Inc.

Geerts Roofing has been in Ottawa since 1990, focusing on residential and smaller commercial work. The company installs shingles and modified membrane systems but also works with copper, cedar shake, and metal roofing for clients who want premium or heritage-appropriate materials.

Geerts has a particular strength in complicated projects: roof straightening, structural repairs after leak damage, and insulation and ventilation corrections. The company is well reviewed on HomeStars and holds a strong profile with the Better Business Bureau.

7. Taylor Roofing Inc.

Taylor Roofing is a family-owned company that has been operating in Ottawa since 2010. They hold GAF certification, placing them among a small percentage of Canadian roofers who qualify through verified installation standards. Every job is completed by Taylor's own crew with no subcontracting.

The company installs architectural, impact-resistant, and premium shingle options, along with metal and flat roofing. They cover Ottawa, Kanata, Nepean, Barrhaven, Orleans, and Kemptville. Taylor is a solid fit for homeowners who want a mid-sized, accountable contractor with clear warranty terms.

8. Roofs of Steel

Roofs of Steel specialises entirely in metal roofing for residential properties in and around Ottawa. The company installs Canadian-made steel panels using a clip system designed to allow thermal expansion without loosening fasteners, which addresses a common long-term problem with metal roofs in climates like Ottawa's.

Metal roofing costs more upfront than asphalt shingles but typically lasts several decades longer and sheds snow more effectively. Roofs of Steel backs their installations with a transferable lifetime warranty. For homeowners making a long-term investment, their focused expertise is hard to match.

9. Wolfenburg Roofing

Wolfenburg Roofing handles residential, commercial, and industrial flat roofing projects in Ottawa and is authorized to install systems from most major roofing manufacturers. Services include flat roof replacement, roof-over systems, green roof installation, inspections, maintenance agreements, and emergency repairs.

The company has more than 25 years of experience and operates on both sides of the Ontario-Quebec border. Commercial property managers who need preventive maintenance programs or rapid-response repair coverage will find Wolfenburg a well-matched option.

What to Look For in a Roofing Company

Experience and Expertise

A contractor who has worked in Ottawa for several years understands how local weather affects different roofing materials. Ask whether the crew is in-house or relies on subcontractors, and confirm experience with the specific type of roof on your home.

Specialization matters. A flat-roofing specialist will typically outperform a generalist on a low-slope project, and a metal roofing company will handle standing-seam details better than a shingle-first contractor.

Licensing and Insurance

Any roofing contractor in Ontario should carry liability insurance and WSIB coverage. Ask for proof of both before signing a contract. Liability insurance protects your property if something goes wrong, and WSIB coverage protects you from claims if a worker is injured on your roof.

Warranties and Reviews

A roofing warranty has two parts: the manufacturer's material warranty and the contractor's workmanship warranty. Workmanship coverage is often more relevant in the first decade, so ask what the contractor's own warranty covers and for how long.

Check reviews on Google, HomeStars, and the Better Business Bureau. Reviews that describe how a company handled a problem are more useful than reviews that simply describe a smooth job.

Tips for Hiring a Roofer in Ottawa

Get Several Quotes

Request quotes from at least three companies and confirm each one covers the same scope of work, materials, and assumptions about what needs replacing beneath the shingles. A low quote that skips a deck inspection or uses lower-grade underlayment is not a fair comparison to a thorough one.

Ask About Materials and Warranty

Find out which shingle brand and grade the contractor plans to use, and ask whether that product qualifies for an extended manufacturer warranty. Some warranties require installation by a certified contractor to be valid. Confirm whether the workmanship warranty transfers to a new owner if you sell the house.

Plan for Ottawa Winters

Ottawa's climate creates specific roofing challenges. Ice dams form when heat escapes through the roof deck, melts snow near the peak, and refreezes at the cold eaves. A competent contractor will check attic insulation and ventilation as part of any full replacement, not just the surface material.

If a storm causes urgent damage in winter, confirm the contractor uses materials rated for low-temperature application.

Head back to MSARCH for more guides to Ontario contractors and renovation pros.