Company lists · Data refreshed September 2026

Top 25 Insulation and air sealing companies based in Canada

RevenueBase identified 388 company matches for insulation and air sealing companies associated with Canada as of September 2026 and tracks 2,313 professional contacts across them, including 682 with verified work emails. Calgary is the largest hub.

This list covers company matches for insulation and air sealing companies associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
388Companies
2,313Contacts tracked
682Verified emails
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The 25 largest insulation and air sealing companies based in Canada

Ranked by team size
Top 25 of 388 company matches for insulation and air sealing companies based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRocky View County, AB, CanadaHQ recorded Sep 20, 2026201-500173 contacts →

Exact match

“Thermal Systems is a building envelope, mechanical insulation, roofing and daylighting subcontractor.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWoodstock, ON, CanadaHQ recorded Sep 20, 2026201-500127 contacts →

Exact match

“Founded in 1980, Great Northern Insulation is Ontario's leading building envelope service provider, for the new construction and retrofit markets across commercial, institutional…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchEdmonton, AB, CanadaHQ recorded Sep 20, 2026201-50086 contacts →

Exact match

“Over Forty Years of Tradition & Excellence Since 1981, Thermo Design Insulation (TDI) has been providing insulated metal panel solutions to various construction markets across…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBarrie, CanadaHQ recorded Sep 20, 202651-20066 contacts →

Exact match

“We are committed to providing innovative products and unprecedented service to our distributors, clients, and associates.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchBeamsville, ON, CanadaHQ recorded Sep 20, 202651-20057 contacts →

Exact match

“After 125 years in over 60 countries, our DELTA® brand is known for delivering innovative, high-performance air- and moisture-barriers for commercial and residential construction.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchBrantford, ON, CanadaHQ recorded Sep 20, 202651-20048 contacts →

Exact match

“Elastochem is a Canadian leader of building enclosure solutions, ranging from waterproofing and restoration systems to polyurethane foam insulation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchSurrey, BC, CanadaHQ recorded Sep 20, 202651-20046 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchToronto, ON, CanadaHQ recorded Sep 20, 2026n/a42 contacts →

Exact match

“If you’re looking for smart, energy-saving insulation solutions, you've come to the right place.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchSherwood Park, AB, CanadaHQ recorded Sep 20, 202651-20034 contacts →

Exact match

“Established in 2014, Tetrad Insulation Services is a full-scale insulation contractor serving Canada’s industrial market.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchDartmouth, NS, CanadaHQ recorded Sep 20, 202651-20029 contacts →

Exact match

“Guildfords was founded in 1906 focusing on insulation services and is North America’s oldest insulation contracting company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchBurlington, ON, CanadaHQ recorded Sep 20, 202651-20027 contacts →

Exact match

“Yvon Insulation has more than 40 years of experience installing a variety of insulation products in both residential and commercial environments.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLangley, BC, CanadaHQ recorded Sep 20, 202651-20026 contacts →

Exact match

“Aarc-West Mechanical Insulation was founded in November 1994.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchMississauga, ON, CanadaHQ recorded Sep 20, 202651-20025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchOttawa, ON, CanadaHQ recorded Sep 20, 202611-5024 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchCalgary, CanadaHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“IDEAL Insulation & Roofing is a 2nd generation family run contracting business and a leader among Calgary insulation companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchHeadingley, MB, CanadaHQ recorded Sep 20, 202651-20022 contacts →

Exact match

“AMC is a Manitoba owned and operated family business, which was founded in 1995 by the late Tom Smerchanski.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchLaval, QC, CanadaHQ recorded Sep 20, 202651-20021 contacts →

Exact match

“Isolation Algon Inc est une entreprise familiale possédant plus de 40 années d'expérience dans le domaine de la Construction.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchOttawa, ON, CanadaHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“O'Reilly Brothers is the industry-leading insulation contractor in Eastern Ontario, specializing in sprayed polyurethane foam insulation, blown cellulose insulation, vermiculite…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchCalgary, AB, CanadaHQ recorded Sep 20, 202651-20019 contacts →

Exact match

“Ener-Spray Group of Companies has offices in Calgary and Vancouver.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchBrandon, MB, CanadaHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“Greenstone Building Products proudly manufactures the Greenstone Panel, a fully integrated building solution that combines framing, insulation, vapor barrier, and structural…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchBrampton, ON, CanadaHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“For over 40 years, Multi-Glass Insulation has been recognized as a leader in the distribution of superior quality commercial, industrial, institutional and value-added fabricated…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchScarborough, ON, CanadaHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“We are at your service since 1960 with a robust infrastructure that can provide solutions to your projects for fireproofing (including intumescent) application, and firestopping…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchCalgary, AB, CanadaHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“We are an established Calgary Insulation contractor.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchQuébec, QC, CanadaHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“NADEAU is the largest distributor/fabricator of insulation in Quebec servicing markets as Commercial, Industrial, OEM and marine.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchTerrebonne, QC, CanadaHQ recorded Sep 20, 202651-20018 contacts →

Exact match

“L'isolation et l’étanchéité résidentielle et commerciale depuis 1979 Commercial & Résidentiel Nous sommes spécialisés en isolation de bâtiment, du sous-sol au grenier, mais aussi…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 388 insulation and air sealing companies based in Canada

See the full list, filter by size, metro and specialty, and access 682 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Insulation and air sealing companies based in Canada at a glance

As of Sep 20, 2026
29.5%Verified-email coverage
6.0Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · Calgary
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
198
11-50
112
51-200
52
201-500
7
10001+
2

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 388 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Canada whose business descriptions match “insulation and air sealing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 682 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “insulation and air sealing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many insulation and air sealing companies are there based in Canada?

RevenueBase identified 388 company matches for insulation and air sealing companies associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Thermal Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most insulation and air sealing companies?

Calgary leads with 23 company records, followed by Edmonton (19) and Toronto (17).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 682 professional contacts with verified work emails tracked across these 388 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 SmartSearch, 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.