Company lists · Data refreshed September 2026

Top 25 Roofing and window companies based in Canada

Name: Roofing and window companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,223 companies tracked

RevenueBase identified 1,223 roofing and window companies headquartered in Canada as of September 2026 and tracks 10,697 professional contacts across them, including 3,560 with verified work emails. Calgary is the largest hub.

This list covers roofing and window companies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

1,223Companies

10,697Contacts tracked

3,560Verified emails

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The 25 largest roofing and window companies based in Canada

Ranked by team size

Top 25 of 1,223 roofing and window companies based in Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to roofing and window companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Flynn Group Of Companies	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	5,001-10,000	1,951 contacts →
	Indirect evidence “The Flynn Group of Companies is North America's leading building envelope trade contractor.” Source: RevenueBase Database · checked Sep 21, 2026
2	Roofmart	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 21, 2026	201-500	343 contacts →
	Indirect evidence “For more than 60 years Roofmart has been the distributor of choice among industry professionals in Canada.” Source: RevenueBase Database · checked Sep 21, 2026
3	Vicwest	Partial evidence	Burlington, ON, CanadaHQ checked Sep 21, 2026	501-1,000	306 contacts →
	Partial evidence “Vicwest Building Products is one of North America’s leading manufacturers and distributors of exterior building products, including metal roofing, siding, decking, insulated metal…” Source: RevenueBase Database · checked Sep 21, 2026
4	Bothwell Accurate Co. INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	201-500	301 contacts →
	Partial evidence “Bothwell-Accurate is one of the oldest and most experienced companies providing Roofing and Waterproofing services to Industrial, Commercial and Institutional buildings in the…” Source: RevenueBase Database · checked Sep 21, 2026
5	Gentek Building Products - Canada	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	250 contacts →
	Indirect evidence “Quality-crafted with attention to detail, Gentek products combine outstanding beauty and strength with the luxury of a low-maintenance finish.” Source: RevenueBase Database · checked Sep 21, 2026
6	Thermal Systems	Partial evidence	Rocky View County, AB, CanadaHQ checked Sep 21, 2026	201-500	173 contacts →
	Partial evidence “Thermal Systems is a building envelope, mechanical insulation, roofing and daylighting subcontractor.” Source: RevenueBase Database · checked Sep 21, 2026
7	Centra Windows & Install Pros	Partial evidence	Langley, CanadaHQ checked Sep 21, 2026	201-500	170 contacts →
	Partial evidence “From window and door manufacturing, supply, and install to building envelope restorations, Centra Windows & Install Pros does it all.” Source: RevenueBase Database · checked Sep 21, 2026
8	Groupe Lessard	Partial evidence	Laval, QC, CanadaHQ checked Sep 21, 2026	201-500	155 contacts →
	Partial evidence “Groupe Lessard is the leader in design, manufacturing and installation of intelligent building envelope systems, with a complete range of doors and windows, curtain walls and…” Source: RevenueBase Database · checked Sep 21, 2026
9	PLY GEM Canada	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	1,001-5,000	134 contacts →
	Indirect evidence “One Company.” Source: RevenueBase Database · checked Sep 21, 2026
10	Triumph Group Of Companies	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	110 contacts →
	Partial evidence “For over 35 years, Triumph has served Southern Ontario, Alberta and Eastern Canada as the leading roofing and cladding contractor for new building construction, repair…” Source: RevenueBase Database · checked Sep 21, 2026
11	LUX Windows & Doors	Partial evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	201-500	107 contacts →
	Partial evidence “An industry leader in the design, manufacturing and installation of quality windows and doors, Lux is a family-owned and managed business based in Calgary, Alberta, Canada.” Source: RevenueBase Database · checked Sep 21, 2026
12	Ecoline Windows	Partial evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	51-200	93 contacts →
	Partial evidence “We specialize in replacement windows for the residential market and work directly with homeowners.” Source: RevenueBase Database · checked Sep 21, 2026
13	Garland Canada INC	Partial evidence	Etobicoke, ON, CanadaHQ checked Sep 21, 2026	51-200	90 contacts →
	Partial evidence “For over a century, Garland offers high performance roofing and building envelope solutions that exceed today’s requirements.” Source: RevenueBase Database · checked Sep 21, 2026
14	Semple Gooder Roofing Corporation	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	201-500	86 contacts →
	Indirect evidence “Years of Expertise and Reliability Founded in 1947, Semple Gooder has served Toronto’s Commercial and Industrial communities for more than 65 years and has gradually expanded to…” Source: RevenueBase Database · checked Sep 21, 2026
15	Westeck Windows And Doors	Indirect evidence	Chilliwack, BC, CanadaHQ checked Sep 21, 2026	201-500	84 contacts →
	Indirect evidence “At Westeck, custom isn’t a feature we sell, it’s how we think.” Source: RevenueBase Database · checked Sep 21, 2026
16	Quickcontractors.com INC	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 21, 2026	51-200	80 contacts →
	Indirect evidence “Recently completing its 1.8 Millionth installation and having being tagged as the No.1 fastest growing construction company in Canada by Canadian Business magazine…” Source: RevenueBase Database · checked Sep 21, 2026
17	Nordik Windows And Doors	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	201-500	70 contacts →
	Partial evidence “Nordik Windows and its partner companies have been providing the complete customer experience in window and door replacement.” Source: RevenueBase Database · checked Sep 21, 2026
18	Toitures Brault Brault Roofing	Indirect evidence	Saint-jean-sur-richelieu, QC, CanadaHQ checked Sep 21, 2026	201-500	69 contacts →
	Indirect evidence “Depuis sa fondation en 1949, Toitures Brault est passé maître dans le domaine de la toiture.” Source: RevenueBase Database · checked Sep 21, 2026
19	Toiture Couture	Indirect evidence	St-hubert, QC, CanadaHQ checked Sep 21, 2026	51-200	67 contacts →
	Indirect evidence “Toiture Couture offre des services d’étanchéité en revêtement de toiture à la fine pointe de la technologie pour le marché commercial, industriel et institutionnel depuis plus de…” Source: RevenueBase Database · checked Sep 21, 2026
20	Penfolds Roofing & Solar	Partial evidence	Coquitlam, BC, CanadaHQ checked Sep 21, 2026	51-200	53 contacts →
	Partial evidence “Penfolds Roofing & Solar, a residential and commercial roofing contractor, has been providing roofing services since 1937!” Source: RevenueBase Database · checked Sep 21, 2026
21	Greenfox Windows & Doors	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 21, 2026	11-50	49 contacts →
	Partial evidence “GreenFox Windows and Doors is Alberta's Manufacturer of Premium Windows & Doors, proudly serving Lethbridge and the surrounding areas.” Source: RevenueBase Database · checked Sep 21, 2026
22	Covertite Eastern LTD	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	51-200	49 contacts →
	Partial evidence “Covertite was founded in 1951 by the Warner family as a small roofing company.” Source: RevenueBase Database · checked Sep 21, 2026
23	Clera Windows And Doors	Partial evidence	Vaughan, CanadaHQ checked Sep 21, 2026	51-200	48 contacts →
	Partial evidence “Clera Windows + Doors by FM Industries has been manufacturing and installing windows and doors throughout all of Ontario since 1978.” Source: RevenueBase Database · checked Sep 21, 2026
24	RTSI	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 21, 2026	51-200	46 contacts →
	Indirect evidence “Depuis 50 ans, RTSI se spécialise dans l'installation de revêtement mural et de toiture.” Source: RevenueBase Database · checked Sep 21, 2026
25	Altek Portes ET Fenêtres	Indirect evidence	Saint-joseph-de-beauce, QC, CanadaHQ checked Sep 21, 2026	201-500	45 contacts →
	Indirect evidence “Altek portes et fenêtres est une entreprise manufacturière de portes et fenêtres desservant les entrepreneurs en construction.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: roofing and window companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names roofing and window companies.
Partial evidence: Its own public description names part of roofing and window companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name roofing and window companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,223 roofing and window companies based in Canada

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Roofing and window companies based in Canada at a glance

As of Sep 21, 2026

33.3%Verified-email coverage

8.7Average contacts per company

11-50Median size (employees)

8.9%Largest-city concentration · Calgary

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

576

11-50

462

51-200

131

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 1,223 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among roofing and window companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “roofing and window companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names roofing and window companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among roofing and window companies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 3,560 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Roofing and window companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names roofing and window companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many roofing and window companies are there based in Canada?

RevenueBase identified 1,223 roofing and window companies headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Flynn Group Of Companies, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most roofing and window companies?

Calgary leads with 109 headquartered companies, followed by Toronto (69) and Edmonton (46).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,560 verified decision-maker contacts tracked across these 1,223 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.