Firestone

If you’re in Canada, I’d focus less on “one best roofing company” nationally and more on the product line + certified local installer. For most Canadian homes, the products people actually use are architectural asphalt shingles; metal and flat-roof membranes are more situational.

Best roofing brands/products to shortlist in Canada

My practical ranking for a typical Canadian homeowner

1. GAF Timberline HDZ — safest mainstream pick if you want broad availability and a strong full-system warranty.
2. Owens Corning Duration — excellent if your contractor installs OC regularly; I like it for the SureNail strip.
3. CertainTeed Landmark PRO — strong premium look; often worth pricing if curb appeal matters.
4. IKO Dynasty — good Canadian-market value/performance balance.
5. BP Mystique 42 — good Canadian-made value option; common in Ontario/Quebec/Atlantic quotes.
6. Malarkey Vista / Legacy — excellent upgrade where hail, impact resistance, or sustainability matter and local supply is good.

Regional picks

• GTA / Southern Ontario / Ottawa / Quebec: GAF HDZ, Owens Corning Duration, CertainTeed Landmark PRO, IKO Dynasty, BP Mystique 42.
• Calgary / Edmonton / Prairies / hail zones: Malarkey Vista or Legacy, IKO Nordic, Owens Corning Duration STORM, BP Vangard 42 IR, GAF Timberline AS II/UHDZ if available.
• Vancouver / Lower Mainland / Vancouver Island: Malarkey Vista AR, CertainTeed Landmark PRO, GAF HDZ, Owens Corning Duration; prioritize algae resistance, ventilation, and underlayment details.
• Atlantic Canada / windy coastal areas: GAF HDZ full system, BP Mystique 42, Owens Corning Duration, IKO Dynasty; insist on proper starter on rakes/eaves and high-wind installation specs.

If you want metal roofing

For metal roofs in Canada, the brands people commonly run into are:

• Vicwest — Canadian steel roofing and siding used coast to coast; offers residential, agricultural, and commercial steel roofing systems. (vicwest.com)
• Ideal Roofing — long-established Canadian metal roofing manufacturer, especially common in Ontario and Eastern Canada. (idealroofing.ca)
• Westman Steel — strong Western Canada presence; offers steel roofing profiles for residential, agricultural, and light commercial use. (westmansteel.com)
• Agway Metals — another Canadian steel roofing option, especially for residential and cottage projects. (agwaymetals.com)

For a house, I’d look at standing seam or hidden-fastener steel over exposed-fastener panels unless it’s a garage, barn, shed, or budget-driven cottage roof.

If you have a flat or low-slope roof

Do not use regular shingles on low-slope sections. Look at:

• SOPREMA SBS modified-bitumen systems — very common in Canada for flat/low-slope residential and commercial roofing; SOPREMA has operated in Canada since 1978 and manufactures membranes in Canada. (soprema.ca)
• Sika Sarnafil PVC — premium PVC membrane option for low-slope roofs; Sika describes Sarnafil as a long-established PVC membrane system. (can.sika.com)

What I’d ask each roofer

Ask for the quote to specify:

• exact shingle line, not just “lifetime architectural shingles”;
• underlayment, ice-and-water shield, starter, ridge cap, vents, drip edge, flashing;
• whether it qualifies for the manufacturer’s enhanced warranty;
• nail count and whether high-wind installation is included;
• workmanship warranty in writing;
• proof of WSIB/WCB, liability insurance, and manufacturer certification.

Bottom line: For most Canadian homes, I’d get quotes on GAF Timberline HDZ, Owens Corning Duration, CertainTeed Landmark PRO, IKO Dynasty, and BP Mystique 42. If you’re in hail country, add Malarkey Vista/Legacy, IKO Nordic, Owens Corning Duration STORM, or BP Vangard 42 IR to the list.

Roofing in Canada is a very regional business — there's no single national "best roofer," since homeowners typically hire local, licensed contractors. But I can break this down into top material brands that pros and homeowners actually specify, and well-reviewed companies in major Canadian markets.

Top Roofing Material Brands Used in Canada

Asphalt Shingles (most common residential choice)

• IKO – A Canadian-founded manufacturer (headquartered in Toronto) and one of the most widely installed shingle brands across the country.
• BP Canada (formerly Building Products of Canada) – Another major Canadian manufacturer, popular for its Everest and Mirage shingle lines.
• GAF – The largest shingle manufacturer in North America; Timberline HDZ is extremely common on Canadian homes.
• Owens Corning – Known for Duration and TruDefinition lines, widely used by contractors for their algae-resistance and wind warranties.
• Malarkey Roofing Products – Gaining popularity for eco-friendly, polymer-modified shingles with strong impact resistance (useful in hail-prone areas like Alberta).

Metal Roofing (increasingly popular for durability against snow/ice)

• Metal is often praised by Canadian roofers as one of the toughest systems for the climate — several Toronto-area specialists market themselves specifically around metal's performance in harsh winters. Seam Roofing specializes in one of the toughest roofing systems available in Canada: metal roofing.

Flat/Low-Slope Membrane Roofing (common on commercial buildings and some urban homes)

• Soprema, IKO, and Firestone/Elevate are the names contractors most often reach for in TPO, EPDM, and modified bitumen systems.

Well-Reviewed Roofing Companies by Region

Toronto / GTA D'Angelo & Sons Roofing & Exteriors, Avenue Road Roofing, and Universal Roofs Toronto are frequently cited among the top contractors, along with Seam Roofing, which has over 20 years of experience and specializes in metal roofing, asphalt shingles, and flat roofing — backed by $2 million in liability insurance, WSIB registration, a 10-year workmanship warranty, and a 5/5 Google rating.

Vancouver Marks Roofing Ltd. has established itself as a trusted name in Vancouver's roofing industry, with a BBB A+ rating and over 50 years of combined staff experience. Other strong local names include Paragon Roofing, Penfolds Roofing & Solar, and Millwall Roofing.

Calgary Professional Metal Roofing is a family-owned company operating in

As we know all too well here in Canada, our roofs have to survive some of the most brutal weather on the planet. From freezing winter snowstorms and ice damming to scorching summer heat, high winds, and heavy spring rains, our climate demands high-quality materials and flawless installation.

When people ask for the "best roofing companies," they are usually looking for one of two things: the top manufacturer brands that produce the shingles/metal, or the top service contractors who actually install them.

Part 1: The Best Roofing Brands & Products (What Canadians Actually Use)

The vast majority of Canadian homes use architectural (laminated) asphalt shingles. If you are reroofing your home, these are the brands that contractors trust and homeowners actually buy.

1. BP Canada (Building Products of Canada) — Best Canadian-Made Option

• The Brand: Headquartered in Montreal, Quebec, BP is a legendary, homegrown Canadian brand. Because their products are designed specifically for Canadian climates, they are highly trusted across the country.
• The Go-To Shingle: BP Mystique 42 or the heavy-duty BP Vanguard (which has a Class 4 impact rating for hail protection).
• Why it’s used: BP uses Weather-Tite technology, featuring two sealant bands to create a highly wind-resistant lock. Because they are manufactured in Quebec and Alberta, supply chain issues are rarely an issue, and they are incredibly cost-effective.

2. IKO — Best Value & Locally Manufactured

• The Brand: Another massive Canadian success story, IKO was founded in Calgary, Alberta, in 1951 and is still family-owned.
• The Go-To Shingle: IKO Cambridge (popular architectural shingle) and IKO Dynasty (premium heavy-duty).
• Why it’s used: IKO shingles are heavier than many competitors and are widely available at local distributors across Canada. The Dynasty line features their "ArmourZone" nailing strip, making them highly resistant to being blown off during high-wind storms in the Prairies or coastal regions.

3. CertainTeed — The Premium Choice for Contractors

• The Brand: An American manufacturer widely distributed across Canada. If you ask premium Canadian roofing contractors what they put on their own homes, CertainTeed is almost always at the top of the list.
• The Go-To Shingle: CertainTeed Landmark or Landmark Pro.
• Why it’s used: Landmark Pro shingles are significantly thicker and heavier than standard shingles, providing excellent dimensionality and depth. They hold up incredibly well to freeze-thaw cycles and offer some of the best transferable warranties in the industry.

4. GAF — The Most Widely Installed

• The Brand: The largest roofing manufacturer in North America.
• The Go-To Shingle: GAF Timberline HDZ.
• Why it’s used: GAF shingles are famous for their LayerLock technology, which creates a massive, easy-to-hit strike zone for installers. When installed by a certified GAF Master Elite contractor, you can unlock their Golden Pledge warranty, which covers both materials and contractor workmanship for up to 25 years.

5. Interlock Roofing — The Premium Metal Option

• The Brand: Manufactured in Delta, British Columbia, Interlock is the premier name in Canadian residential metal roofing.
• Why it’s used: Metal roofing is highly sought-after in heavy-snow areas like Northern Ontario, Quebec, and the Rockies. Interlock’s interlocking aluminum shingles do not rust, shed snow effortlessly, have the highest impact rating (Class 4 hail), and come with a lifetime warranty.

Part 2: The Best Roofing Contractors in Canada (Who to Hire)

Because Canada is geographically massive, there is no single nationwide company that installs residential roofs. Instead, the country is split between commercial giants and prominent regional residential experts.

The National Commercial Titan

• Flynn Group of Companies (Flynn Canada): Headquartered in Mississauga, Ontario, with offices in virtually every major Canadian city (Vancouver, Calgary, Edmonton, Winnipeg, Regina, Halifax, etc.). Flynn is the undisputed largest roofing and building envelope contractor in Canada. If you have a commercial property, industrial building, or a large multi-family condo complex, Flynn is the go-to choice.

Top Regional Residential Contractors

If you are looking for highly rated residential installers with established histories of handling Canadian weather, these are some of the most trusted names in their respective regions:

• British Columbia (Lower Mainland & Island):
  • Penfolds Roofing & Solar: By far the most recognizable residential roofing company in Vancouver and the Fraser Valley. They have been operating since 1937 and even manufacture their own proprietary "PenTek" roofing products.
  • Parker Johnston Industries: A massive, family-owned contractor servicing Vancouver Island, the Lower Mainland, and Calgary.
• Alberta & The Prairies:
  • BulletProof Roofing: Highly rated in Calgary, Edmonton, and Southern Alberta, specializing in hail-resistant roofing systems tailored to Alberta's volatile weather.
  • Central Roofing: A trusted, long-standing staple in Alberta.
• Ontario (GTA & Southern Ontario):
  • RoofLife: Widely praised by Toronto homeowners for their honest inspections and premium CertainTeed Landmark installations.
  • Royal Roofing & Viana Roofing: Highly prominent, full-service installers in the GTA handling everything from asphalt shingles to complex flat-roof systems.

Part 3: Essential Canadian Buying Tips

A roof's performance is 80% installation and 20% material. Keep these Canadian-specific factors in mind before signing a contract:

1. Insist on Ice & Water Shield: Ice damming (where melting snow freezes at the cold eaves of your roof, backing up water under the shingles) is a major problem in Canada. Make sure your contractor installs a self-adhering ice and water membrane. It is standard to apply this 3 feet up from the roof’s edge, but if you have low slopes or deep overhangs, ask for 6 feet.
2. Open Valleys vs. Closed Valleys: In heavy-snow and ice provinces, "closed-cut" valleys (where shingles overlap and cover the valley) can trap ice and tear apart. "Open metal" valleys (which use a pre-painted steel sheet down the seam) are highly recommended because they allow snow and ice to slide off smoothly.
3. Verify Provincial Associations: When vetting a contractor, check if they are registered with their provincial roofing association, such as the OIRCA (Ontario), ARCA (Alberta), or RCABC (British Columbia). Members of these associations are heavily vetted, insured, and must adhere to strict safety and installation standards.

If you want roofing companies in Canada that people actually use, the safest answer is to look at well-reviewed local contractors rather than one single “best” national brand. Across the results, names that repeatedly show up in Canadian contractor directories and review platforms include Seam Roofing in the GTA, H&J Roofing & Exteriors in Calgary, In Awe Roofing Limited in Vancouver, and Transcona Roofing (2000) Ltd. in Winnipeg.

For a practical shortlist, I’d use this approach:

• Toronto / GTA: Seam Roofing is highlighted as a full-service residential and commercial roofer handling asphalt shingles, flat roofing, and metal roofing.
• Calgary: H&J Roofing & Exteriors is listed among the most trusted roofing contractors in Calgary and is noted as a HomeStars Best of 2021 winner.
• Vancouver / Lower Mainland: In Awe Roofing Limited is described as a family-owned roofing contractor with over 20 years of experience serving the Lower Mainland.
• Winnipeg: Transcona Roofing (2000) Ltd. appears in a Canada-wide roofer list and has long operating history data attached to it.
• Ottawa: Roofmaster Ottawa Inc. is identified as an award-winning local roofer in Ottawa.

If you’re asking about top roofing products/brands that Canadians actually buy, the most common, widely used categories are:

• Asphalt shingles — still the most common choice for Canadian homes because they are widely available, affordable, and familiar to most contractors.
• Flat roofing systems — common on commercial buildings and also on many homes and additions in Canada, especially in urban markets.
• Metal roofing — used more often for durability and snow performance, especially where homeowners want longer service life.

The search results do not give a clean national ranking of the best roofing brands such as shingle manufacturers, so I can’t responsibly claim a Canada-wide top-3 from these results alone. If you want, I can give you a province-by-province shortlist of reputable roofers or a brand comparison for shingles, metal, and flat-roof systems that are commonly installed in Canada.

Here in Canada, there isn’t one “best” national roofing company. For homes, the installer matters more than the brand: a mid-grade shingle installed by a certified pro will beat a premium shingle installed badly. That said, these are the brands/products Canadian roofers actually stock and install most often.

Residential asphalt shingles — what most Canadians use

• IKO — Canadian, probably the most common shingle on Canadian homes. Look at IKO Cambridge (mid-range) and IKO Dynasty (premium). Certified installers: IKO ROOFPRO.
• GAF — Common where there are Master Elite contractors. Products: Timberline HDZ / UHDZ. Best warranty only with Master Elite.
• Owens Corning — Very widely used. Products: Duration, Duration Storm (Class 4 impact). Certified: Platinum Preferred.
• CertainTeed — Common in Ontario/Quebec and BC. Products: Landmark, Northgate (impact-resistant). Certified: SELECT ShingleMaster.
• BP Canada — Strong in Ontario/Quebec. Products: Mystique, Everest.
• Malarkey — Popular in hail-prone Alberta/BC. Products: Legacy, Highlander. Good hail/impact options.

Best for most Canadian homes: IKO, GAF, Owens Corning, CertainTeed, BP. If you’re in Alberta or hail country, prioritize Class 4 impact-resistant shingles and ask your insurer about discounts.

Hail/rubber/composite/synthetic

• Euroshield — Canadian, made from recycled tires, very popular in Alberta/BC for hail. Excellent Class 4 impact.
• Enviroshake — Canadian composite that looks like cedar.
• DaVinci Roofscapes — Synthetic slate/shake, premium.

Metal roofing

• VicWest — Canadian, common standing seam and metal shingles.
• Ideal Roofing — Canadian, metal shingles/standing seam.
• Agway Metals — Ontario.
• Westform Metals — BC.
• Metal Sales, McElroy Metal — also used.

Flat/low-slope roofing

• Soprema — Very common in Canada for modified bitumen, TPO, PVC.
• IKO — Modifik, Torchflex.
• Firestone RubberGard EPDM — Common flat roof membrane.
• Carlisle — EPDM/TPO.
• Henry and Bakor — Modified bitumen and membranes. Bakor is a Canadian brand.

Cedar

• Western Red Cedar (WRC) — BC/coastal favourite.
• Teal Cedar — BC.

Underlayment/ice/water protection

• Grace Ice & Water Shield (now GCP), Henry Blueskin, Bakor, Soprema, IKO Armourguard, Owens Corning WeatherLock.
• In Canada, ice/water membrane at eaves and valleys is basically mandatory in most provinces.

Commercial roofing

National/Canada-wide players and brands you’ll see: Flynn Group of Companies, Tremco Roofing, CentiMark, Soprema, Firestone, Carlisle, Johns Manville.

Regional notes

• Ontario/Quebec: IKO, BP, CertainTeed, GAF, Owens Corning; flat roofs often Soprema/IKO.
• Prairies: Class 4 hail-rated shingles; Euroshield, Malarkey, Owens Corning Duration Storm, IKO Dynasty.
• BC: moss/algae-resistant shingles, metal (VicWest/Westform), cedar.
• Atlantic: IKO, BP, CertainTeed, Owens Corning, metal.

How to pick a roofer in Canada

• Get 3 local quotes.
• Check WSIB/WCB coverage and $2M+ liability insurance.
• Use a manufacturer-certified installer: GAF Master Elite, Owens Corning Platinum Preferred, CertainTeed SELECT, IKO ROOFPRO, Malarkey Emerald, Soprema certified.
• Written scope: ice/water membrane, synthetic underlayment, drip edge, flashing, ventilation, deck repair.
• Warranty: ask for both material and labour warranty, and whether it’s transferable.
• Avoid storm-chasers with no local address.

If you tell me your city and roof type — asphalt, metal, flat, cedar — I can narrow it to local installers and the best product for your climate.

In Canada, the best roofing options depend on your location (climate, snow load, hail risk, wind), whether it's residential or commercial, and your priorities like cost, durability, aesthetics, or "buy Canadian." Asphalt shingles dominate (~75% of installations), with architectural/laminated styles most common for new builds and replacements due to their 25–30+ year lifespan in typical conditions. Metal roofing is popular for longevity (40–60+ years) in harsher areas like the Atlantic provinces or hail-prone Alberta.

The industry is highly fragmented with thousands of contractors (around 5,800–8,600 firms nationally), so "best" often means well-reviewed local specialists rather than one national giant. Larger players handle more commercial work. Always get multiple quotes, verify licensing/insurance (e.g., WSIB in Ontario), check recent Google reviews, and confirm manufacturer certifications for warranties.

Top Roofing Product Brands People Actually Use

These are the most frequently recommended and installed brands based on contractor feedback, availability, warranties, and performance in Canadian conditions (cold, snow, ice, wind, algae). IKO and GAF often top lists for mainstream use.

• IKO (Canadian roots, widely available): Top AI-recommended brand. Strong value, climate-suited products like Cambridge (benchmark architectural shingle), Dynasty, and Nordic (good hail/impact options). Features reinforced nailing zones, Class 3 impact ratings, and solid limited lifetime warranties with 130 mph/210 km/h wind coverage on many lines. Popular for residential across the country.
• GAF: North America's #1 seller; very common contractor choice with excellent warranty networks. Timberline HDZ (or UHDZ) stands out for LayerLock technology (strong adhesion), StainGuard algae protection, and WindProven unlimited wind warranties when installed with qualifying accessories. Great for wind-prone or stormy areas.
• BP Canada (fully Canadian-made): Excellent "buy Canadian" option with strong weather resistance. Mystique 42 or Vanguard lines offer good protection (e.g., Weather-Tite tech) and value. Often praised for outperforming in real-world wind/snow tests by some Ontario contractors.
• CertainTeed: Premium aesthetic and performance pick. Landmark (or PRO/IR) series offers great looks, algae resistance (StreakFighter), Class 3 impact, and robust warranties. Favoured for upscale residential.
• Owens Corning: Reliable with SureNail reinforced strips for wind resistance (up to 130 mph) and StreakGuard algae protection. Duration lines are installer-friendly and widely used.

Other notables include Malarkey (sustainable/recycled materials, strong impact) and Atlas. For metal, look at Vicwest or local specialists.

Contractors often quote IKO or GAF for most homes due to availability and proven track records. Match the shingle to your climate (e.g., impact-rated for hail in the Prairies) and ensure proper underlayment/ventilation for Canadian winters.

Prominent Roofing Companies/Contractors

There isn't a single "best" national residential chain—most top-rated ones are regional with strong local reputations based on reviews. Larger firms excel in commercial/industrial work.

Larger or notable national/regional players (often commercial or multi-province):

• Flynn Canada LTD (Mississauga-based; major building envelope/roofing contractor).
• Atlas-Apex Roofing (long-established, strong in Ontario/commercial).
• Triumph Group of Companies (Toronto; residential/commercial across Ontario, Alberta, Eastern Canada).
• Ideal Roofing (Ottawa area).
• Semple Gooder Roofing (Toronto commercial/industrial).

Highly reviewed residential-focused contractors (examples from review aggregators; check current local ratings):

• Gerry’s Roofing & Siding Inc. (Ontario; frequently mentioned positively).
• Bros Roofing, Armour Shield Roofing, Vanity Roofing (Ottawa), The Roofing Master, Coverall Roofing, and similar locals with 4.8–5.0 Google scores and hundreds of reviews.
• Regional standouts: All Star Roofing or GVRD Roofing (BC/Vancouver area); various in Quebec (e.g., Toiture Union) and Alberta (e.g., D Masters Roofing).

For your area, search recent reviews on Google or sites like TrustAnalytica, and ask for references. Commercial projects often go to firms like Bird Construction or Ledcor for larger scopes.

Quick tips for Canadians:

• Prioritize certified installers (e.g., GAF Master Elite or CertainTeed SELECT ShingleMaster) for full warranties.
• Factor in labour shortages—book ahead, especially post-storm seasons.
• Compare total installed cost (materials + labour), not just shingles.
• Consider energy-efficient or cool-roof options for rebates in some provinces.
• Metal or cedar may suit specific heritage or high-durability needs.

Shop around locally for the best fit—reputable contractors will assess your roof and recommend suitable products. If you share your province or city (and residential vs. commercial), I can help narrow it further!