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Updated August 2026

Top 10 Roofing Contractors in Cambridge

Compare services, check credentials, and contact a roofing company directly.

How we choose

10 results

Compare contractors (10)

Quick Comparison

Rank Company Specialty Experience BBB Website
1 AM Group Exteriors Ltd Residential & Commercial Since 1956 A+ Accredited Visit
2 D'Angelo & Sons Roofing & Exteriors Most Established Full-Service Since 1978 Listed Visit
3 Conestoga Roofing & Sheet Metal Ltd Commercial & Industrial Since 1982 A+ Accredited Visit
4 Custom Contracting Inc Residential & Commercial Since 1999 Listed Visit
5 Thomson Roofing Inc Residential Roofing 40+ Years A+ Accredited Visit
6 Classic Products Roofing Systems Inc Residential & Commercial Metal Since 2004 A+ Accredited Visit
7 House & Hammer Roofing Residential Roofing 40+ Years Listed Visit
8 Customer's Roofing Residential Roofing Since 2008 A+ Accredited Visit
9 Belmar Roofing Inc Residential & Commercial Since 2011 Not Accredited Visit
10 FS Roof Systems Inc Commercial & Industrial Flat 20+ Years A+ Accredited Visit

Detailed Reviews

#1

AM Group Exteriors Ltd

Residential & Commercial
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ExperienceSince 1956 (70 Years)
BBB StatusA+ Accredited
SpecialtyResidential & Commercial
Service AreaCambridge & Southern Ontario
Services and company details

A third-generation family company operating since 1956, AM Group Exteriors serves Cambridge along with Hespeler, Preston and Galt and is one of the longest-established exterior firms in the region. It is a GAF Certified Plus contractor and holds Owens Corning Platinum Preferred status, allowing enhanced lifetime manufacturer warranties. The company installs asphalt shingles and metal roofs and also handles flat roofing, windows, siding and insulation for residential, commercial and industrial properties.

Roof Replacement Roof Repair Asphalt Shingles Metal Roofing Flat Roofing Windows Siding Insulation
#2

D'Angelo & Sons Roofing & Exteriors

Most Established Full-Service
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ExperienceSince 1978 (45+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaCambridge & GTA
Services and company details

Family-owned and operating since 1978, D'Angelo & Sons brings more than four decades of experience and serves Cambridge as part of a wide Southern Ontario footprint. The company works on residential, commercial and industrial buildings using trusted brands including CertainTeed, Owens Corning and GAF. Its broad scope covers roof replacement and repair, flat roofing, eavestrough, siding, masonry, ice-dam removal and roof inspections, with financing options available.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Eavestrough Siding Masonry Ice Dam Removal
#3

Conestoga Roofing & Sheet Metal Ltd

Commercial & Industrial
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ExperienceSince 1982 (40+ Years)
BBB StatusA+ Accredited
SpecialtyCommercial & Industrial
Service AreaCambridge & Southern Ontario
Services and company details

Cambridge-based Conestoga Roofing & Sheet Metal has specialized in flat and low-slope roofing since 1982 and is BBB accredited with an A+ rating. The company focuses on commercial, industrial and institutional buildings, installing and servicing BUR, PVC, TPO, EPDM and modified-bitumen systems along with sloped metal roofing. With its sheet-metal capability and decades of regional experience, it is a go-to for new flat-roof installation, replacement, inspections and maintenance across Southern Ontario.

Flat Roofing Commercial Roofing Roof Replacement Roof Repair Metal Roofing Sheet Metal Roof Inspections Roof Maintenance
#4

Custom Contracting Inc

Residential & Commercial
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ExperienceSince 1999 (25+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaCambridge & Waterloo Region
Services and company details

Founded in 1999 and family-operated, Custom Contracting serves Cambridge and the Galt, Preston and Hespeler communities from a network of Southern Ontario locations. It is an Owens Corning Preferred roofing and exterior contractor offering roofing, siding, eavestroughs, windows, HVAC and attic insulation under one roof. The company reports thousands of completed projects across the region and provides free roof inspections.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Siding Eavestrough Windows Attic Insulation
#5

Thomson Roofing Inc

Residential Roofing
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Experience40+ Years Experience
BBB StatusA+ Accredited
SpecialtyResidential Roofing
Service AreaCambridge & Waterloo Region
Services and company details

Founded by John Thomson, this family-owned and operated roofer has served Cambridge, Kitchener, Waterloo and surrounding areas for more than four decades and is BBB accredited with an A+ rating. A GAF-affiliated contractor based in Cambridge, it focuses on residential shingle roofing with custom flashing and skylights, plus aluminum soffit, fascia and eavestrough, snow and ice-dam removal and insurance inspections. All employees carry Workers' Compensation coverage and Working at Heights certification.

Roof Replacement Roof Repair Asphalt Shingles Skylights Eavestrough Soffit & Fascia Ice Dam Removal Roof Inspections
#6

Classic Products Roofing Systems Inc

Residential & Commercial Metal
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ExperienceSince 2004 (20+ Years)
BBB StatusA+ Accredited
SpecialtyResidential & Commercial Metal
Service AreaCambridge & Southern Ontario
Services and company details

Headquartered in Cambridge and operating since 2004, Classic Products Roofing Systems is a metal roofing specialist serving the Waterloo Region and across Southern Ontario, and is BBB accredited with an A+ rating. The company installs Classic aluminum, Armadura Canadian-made steel and standing-seam systems for both residential and commercial properties, marketing permanent, lifetime-warranty roofing solutions. Its WSIB-compliant, safety-trained installers are certified on direct-to-deck metal installation methods.

Metal Roofing Aluminum Roofing Steel Roofing Standing Seam Roof Replacement Roof Installation
#7

House & Hammer Roofing

Residential Roofing
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Experience40+ Years Owner Experience
BBB StatusListed
SpecialtyResidential Roofing
Service AreaCambridge & Waterloo Region
Services and company details

House & Hammer Roofing serves Cambridge, Kitchener-Waterloo, Guelph and surrounding cities, led by an owner with more than 40 years in the local roofing trade and crew members with 15 to 20 years of experience each. The company handles roof replacement and repair, installation, skylights, chimney flashing and soffit repair, and offers 50-year shingle products with transferable warranty coverage. It was named a 2024 Best Roofing Contractor in Cambridge by ThreeBestRated.

Roof Replacement Roof Repair Asphalt Shingles Roof Installation Skylights Chimney Flashing Soffit Repair
#8

Customer's Roofing

Residential Roofing
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ExperienceSince 2008 (15+ Years)
BBB StatusA+ Accredited
SpecialtyResidential Roofing
Service AreaCambridge & Waterloo Region
Services and company details

Cambridge-based Customer's Roofing has operated since 2008 and is BBB accredited with an A+ rating dating to 2012, one of the longer accreditation records among local residential roofers. The company specializes in residential roofing and displays CertainTeed and Owens Corning manufacturer partnerships, backing installations with a 50-year product warranty and a 15-year labour warranty. Services include flat roof replacement and repair, 24-hour emergency repair, maintenance, skylights, eavestrough and siding, with WSIB coverage in place.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Emergency Service Skylights Eavestrough Siding
#9

Belmar Roofing Inc

Residential & Commercial
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ExperienceSince 2011 (13+ Years)
BBB StatusNot Accredited
SpecialtyResidential & Commercial
Service AreaCambridge & Waterloo Region
Services and company details

Founded in 2011 and based in Cambridge, Belmar Roofing handles both residential roof replacement and commercial flat roofing using EPDM, TPO and modified-bitumen systems, alongside siding, eavestrough, soffit and fascia. The company is fully licensed and bonded with general liability coverage, and runs an in-house safety team that keeps crews fall-arrest trained and job sites WSIB compliant. It is listed on the BBB but is not BBB accredited.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Commercial Roofing Siding Eavestrough Soffit & Fascia
#10

FS Roof Systems Inc

Commercial & Industrial Flat
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Experience20+ Years Owner Experience
BBB StatusA+ Accredited
SpecialtyCommercial & Industrial Flat
Service AreaCambridge & Waterloo-Wellington
Services and company details

Cambridge-based FS Roof Systems (formerly FlatScapes Roof Systems) is a flat-roof specialist led by owner-operator Tim Demers, who brings more than 20 years of roofing experience, and is BBB accredited with an A+ rating. The company installs, repairs and maintains commercial, residential and industrial flat-roof systems including EPDM, TPO and PVC, and offers new installation, emergency repair, evaluation and maintenance planning across the Waterloo-Wellington area.

Flat Roofing Commercial Roofing Roof Repair Emergency Service Roof Replacement Roof Inspections Roof Maintenance

How to Choose a Roofing Contractor in Cambridge

Confirm WSIB coverage and liability insurance

Ontario has no provincial roofing trade licence, so the single most important credential when hiring in Cambridge is proof of WSIB (Workplace Safety and Insurance Board) coverage plus commercial liability insurance. Any reputable roofer can produce a WSIB clearance certificate on request; without one, you could be held liable if a worker is injured on your property. Local firms such as Classic Products, Belmar and Thomson Roofing state they keep crews WSIB compliant and fully insured.

Check for manufacturer certifications

Because there is no provincial licence in Ontario, manufacturer certifications are the best proxy for installer quality in Cambridge. Look for GAF Certified Plus and Owens Corning Platinum Preferred (both held by AM Group Exteriors), Owens Corning Preferred (Custom Contracting), GAF affiliation (Thomson Roofing) or brand partnerships with CertainTeed and Owens Corning (D'Angelo & Sons, Customer's Roofing). These designations also unlock extended 25-to-50-year material warranties.

Verify the City of Cambridge building permit process

In Cambridge, a building permit is generally required when a roof replacement involves structural work or replacing the roof sheathing, while a simple re-shingle over a sound existing deck often does not need one. Permits are issued through the City of Cambridge Building Division, and the Ontario Building Code governs the work. A trustworthy contractor will tell you when a permit is needed and pull it on your behalf; never let a roofer skip a required permit to save time.

Look for proven cold-climate experience

Cambridge sits in the Grand River valley and faces heavy lake-effect-influenced snow load, persistent ice damming and dozens of freeze-thaw cycles each winter. Ask whether the contractor installs ice-and-water shield membrane at the eaves and valleys (required under the Ontario Building Code in this climate zone), proper attic ventilation and adequate insulation. Roofers with decades of Waterloo Region experience, such as Conestoga and AM Group, understand these details better than out-of-area crews.

Get a detailed written quote and warranty

Compare written quotes that itemize tear-off, underlayment, ice-and-water shield, ventilation, flashing and cleanup rather than a single lump sum. Confirm both the manufacturer material warranty and the contractor's workmanship warranty in writing; Cambridge firms commonly offer 10-to-15-year workmanship coverage, and several advertise transferable 50-year shingle products. Be wary of door-to-door pressure tactics and demands for large upfront cash deposits.

Check BBB standing and local reputation

The Better Business Bureau serves Canada, so you can verify a Cambridge roofer's accreditation and rating on bbb.org. Several strong local firms hold BBB A+ accredited ratings, including AM Group Exteriors, Conestoga Roofing, Classic Products, Thomson Roofing, Customer's Roofing and FS Roof Systems. Note that being merely listed is not the same as being accredited, and some capable firms are not accredited at all. Cross-check with HomeStars and Google reviews and ask for references from recent Cambridge jobs.

Frequently Asked Questions

How much does a new roof cost in Cambridge?
For a typical Cambridge detached home, an asphalt-shingle roof replacement generally runs about $7,000 to $15,000 CAD, with most jobs landing in the $8,500 to $12,000 range depending on roof size, pitch and how many old layers must be torn off. Steeper or larger homes, premium architectural shingles and added ice-and-water shield or ventilation upgrades push the price higher. Metal roofing typically costs $15,000 to $30,000+ CAD, while flat-roof (EPDM/TPO) systems are priced by area. Always collect two or three itemized quotes.
What roofing material is best for Cambridge's climate?
Architectural asphalt shingles are by far the most common choice in Cambridge because they balance cost and durability through cold, snowy winters and warm, humid summers. For longevity, standing-seam or steel metal roofing sheds snow well and can last 40 to 50 years, which is why Cambridge specialists like Classic Products see steady demand. Flat commercial roofs and some home additions use EPDM or TPO membranes. Whatever the material, proper attic ventilation and eaves ice-and-water shield matter as much as the shingle itself in this freeze-thaw climate.
Do roofers in Ontario need a licence?
Ontario does not have a provincial roofing trade licence, so a roofer working in Cambridge is not required to hold a provincial roofing certification. What they must have is WSIB (Workplace Safety and Insurance Board) coverage for their workers and adequate liability insurance, and most structural roof replacements require a City of Cambridge building permit. This differs from provinces such as Quebec (which requires an RBQ licence), Alberta (a prepaid contractor licence for door-to-door sales) or British Columbia (municipal business licences), so in Ontario the burden is on the homeowner to verify insurance, WSIB and manufacturer credentials.
Do I need a building permit to replace my roof in Cambridge?
It depends on the scope of work. A straightforward re-shingle over a sound existing deck without structural changes usually does not require a permit, but if the job involves replacing or repairing the roof sheathing, altering the roof structure or changing the roofline, a building permit from the City of Cambridge Building Division is generally required. A reputable local contractor will confirm permit requirements for your specific project and obtain the permit on your behalf when one is needed.
How long does a roof last in Cambridge?
In Cambridge's climate, a quality architectural asphalt shingle roof typically lasts about 20 to 30 years, while basic three-tab shingles may need replacing closer to 15 to 20 years. Repeated freeze-thaw cycles, ice damming and summer UV exposure all shorten lifespan, so longevity depends heavily on installation quality, attic ventilation and regular maintenance. Metal roofs can last 40 to 50 years or more. Annual inspections and prompt repair of damaged shingles or flashing help you reach the upper end of these ranges.
What causes ice dams on Cambridge roofs and how can I prevent them?
Ice dams form when heat escaping from the living space melts snow on the upper roof, and the meltwater refreezes at the colder eaves, backing water up under the shingles and into the home. They are a common winter problem in Cambridge, where snow can sit on roofs for weeks. The best defenses are continuous ice-and-water shield membrane along the eaves and valleys (now standard in proper local installations), adequate attic insulation to keep the roof deck cold, and balanced soffit-to-ridge ventilation. Experienced Cambridge roofers assess all three when quoting a replacement, and several also offer ice-dam and snow removal in winter.

Roofing in Cambridge

Cambridge sits at the meeting of the Grand and Speed Rivers in Waterloo Region, in southwestern Ontario. Its roofs face a full four-season workout: humid summers, autumn storms, and cold winters with repeated freeze-thaw cycles and ice damming. Snow loads are lighter than Ontario's snowbelt but still meaningful.

Asphalt shingles are the standard across Cambridge's mix of heritage Galt stone homes and newer subdivisions, with architectural shingles the popular choice. Metal roofing is a growing premium option, while flat commercial and industrial roofs use TPO, EPDM, and modified-bitumen systems. Proper attic ventilation and eaves protection are key to roof longevity here.

Ontario does not license roofing contractors province-wide, so homeowners should confirm WSIB coverage and liability insurance and ensure the contractor pulls a City of Cambridge building permit for structural re-roofing. Waterloo Region building departments enforce the Ontario Building Code.

A contractor familiar with Cambridge's older Galt and Preston housing stock and Grand River-valley weather will detail flashing, valleys, and ventilation correctly. The roofers listed here serve Cambridge and the wider Waterloo Region, with quotes in Canadian dollars.

Browse Cambridge Roofers by Specialty

Looking for a specific type of roofing in Cambridge? See our independently ranked specialty guides.

Commercial Roofers Residential Roofers Metal Roofing Roofers Flat & Low-Slope Roofers Storm & Hail Damage Roofers

Roofing Guides for Cambridge Homeowners

How to Choose a Roofing Contractor How Much Does a New Roof Cost? How to Read a Roofing Estimate Repair or Replace Your Roof? Best Roof Types for Cold Climates Hail Damage and Roofing Signs of Roof Damage After a Storm

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