Company lists · Data refreshed September 2026

Top 25 Commercial hvac maintenance companies based in Canada

Name: Commercial hvac maintenance companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 818 companies tracked

RevenueBase identified 818 commercial hvac maintenance companies headquartered in Canada as of September 2026 and tracks 6,696 professional contacts across them, including 2,714 with verified work emails. Toronto is the largest hub.

This list covers commercial hvac maintenance 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 19, 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 19, 2026 86% judged on-target in blind review

818Companies

6,696Contacts tracked

2,714Verified emails

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The 25 largest commercial hvac maintenance companies based in Canada

Ranked by team size

Top 25 of 818 commercial hvac maintenance companies based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to commercial hvac maintenance 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	HTS Engineering	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Your success is our success.” Source: RevenueBase Database · checked Sep 19, 2026
2	Navada	Indirect evidence	Longueuil, QC, CanadaHQ checked Sep 19, 2026	501-1,000	280 contacts →
	Indirect evidence “Thanks to its multidisciplinary team, Navada offers a simple, turnkey approach to building services engineering.” Source: RevenueBase Database · checked Sep 19, 2026
3	Gateway Mechanical Services	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 19, 2026	201-500	208 contacts →
	Partial evidence “Founded in 1968, Gateway Mechanical is a privately owned company that has established itself as a leader in the commercial and industrial refrigeration, heating and air…” Source: RevenueBase Database · checked Sep 19, 2026
4	Right Time Group Of Companies	Partial evidence	St. Catharines, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	193 contacts →
	Partial evidence “The Right Time Group of Companies has been proudly providing a full range of home HVAC solutions to customers across Ontario, Manitoba, Saskatchewan, Alberta and British Columbia…” Source: RevenueBase Database · checked Sep 19, 2026
5	Kolostat	Indirect evidence	Laval, QC, CanadaHQ checked Sep 19, 2026	201-500	191 contacts →
	Indirect evidence “Kolostat Inc.” Source: RevenueBase Database · checked Sep 19, 2026
6	Arpi's Industries LTD	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	51-200	142 contacts →
	Partial evidence “Arpi’s Industries, a full service mechanical contractor, provides heating, air conditioning, ventilation, plumbing, and air quality solutions to residential and commercial markets.” Source: RevenueBase Database · checked Sep 19, 2026
7	Olympic International Sales Limited	Partial evidence	North Vancouver, BC, CanadaHQ checked Sep 19, 2026	51-200	89 contacts →
	Partial evidence “Olympic International is a premier provider of heating, ventilating and air conditioning (HVAC) equipment design, engineering support and training serving Western Canada.” Source: RevenueBase Database · checked Sep 19, 2026
8	Baulne	Strong evidence	Lachine, QC, CanadaHQ checked Sep 19, 2026	51-200	89 contacts →
	Strong evidence “BAULNE is a company based in Montreal and Quebec City, providing HVAC building mechanics services (heating/cooling) for the following sectors: industrial, commercial…” Source: RevenueBase Database · checked Sep 19, 2026
9	LES Entreprises DE Réfrigération LS	Indirect evidence	Laval, QC, CanadaHQ checked Sep 19, 2026	201-500	78 contacts →
	Indirect evidence “Depuis 46 ans, nous consacrons beaucoup d’efforts à cultiver le sentiment d’appartenance de nos employés envers l’entreprise, ce qui nous permet de surpasser les attentes de nos…” Source: RevenueBase Database · checked Sep 19, 2026
10	LPI Mechanical	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 19, 2026	51-200	67 contacts →
	Indirect evidence “For the last 24 years, LPI Mechanical Inc.” Source: RevenueBase Database · checked Sep 19, 2026
11	Coral Canada Wide LTD	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	51-200	67 contacts →
	Partial evidence “Canada's leading, privately owned HVAC-R services company with a proven track record of providing professional Facility Services since 1992.” Source: RevenueBase Database · checked Sep 19, 2026
12	Lysair	Indirect evidence	Laval, QC, CanadaHQ checked Sep 19, 2026	51-200	63 contacts →
	Indirect evidence “Depuis 1987, Lysair se démarque par la qualité de ses projets et de ses services d’entretien en ventilation, climatisation et chauffage dans les secteurs résidentiels…” Source: RevenueBase Database · checked Sep 19, 2026
13	Ventilabec INC	Partial evidence	Laval, QC, CanadaHQ checked Sep 19, 2026	51-200	61 contacts →
	Partial evidence “Established in Laval for over 35 years and now present on the South Shore, Ventilabec is recognized as a leader in the installation and maintenance of air conditioning…” Source: RevenueBase Database · checked Sep 19, 2026
14	GNR Corbus	Indirect evidence	Sherbrooke, QC, CanadaHQ checked Sep 19, 2026	201-500	58 contacts →
	Indirect evidence “Que ce soit en climatisation, en ventilation, en réfrigération, en congélation, en plomberie, en chauffage ou pour les procédés de gaz naturel, nous avons un technicien qualifié…” Source: RevenueBase Database · checked Sep 19, 2026
15	Mécanique RH	Indirect evidence	Laval, QC, CanadaHQ checked Sep 19, 2026	51-200	58 contacts →
	Indirect evidence “MÉCANIQUE RH fait siennes les exigences de ses clients : que ce soit dans le domaine de la ventilation, de la climatisation, du chauffage, de la réfrigération, de la régulation…” Source: RevenueBase Database · checked Sep 19, 2026
16	PSL Patrick Sprack LTD	Indirect evidence	Sudbury, ON, CanadaHQ checked Sep 19, 2026	51-200	51 contacts →
	Indirect evidence “PSL is one of the fastest growing mechanical service providers in Northern Ontario.” Source: RevenueBase Database · checked Sep 19, 2026
17	Customair	Strong evidence	Port Coquitlam, BC, CanadaHQ checked Sep 19, 2026	51-200	47 contacts →
	Strong evidence “Custom Air started in 1991 when the founders decided that the commercial and industrial HVAC industry would benefit from a different kind of company - a company aimed at providing…” Source: RevenueBase Database · checked Sep 19, 2026
18	Major Refrigeration LTD	Indirect evidence	Grimsby, ON, CanadaHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “Our Mission:"Major Refrigeration strives to provide the best quality service in a safe, efficient manner at all times.” Source: RevenueBase Database · checked Sep 19, 2026
19	A1 AIR Conditioning & Heating	Partial evidence	Oakville, ON, CanadaHQ checked Sep 19, 2026	51-200	42 contacts →
	Partial evidence “A1 Air Conditioning & Heating is the GTA’s finest residential and commercial heating and cooling contractor.” Source: RevenueBase Database · checked Sep 19, 2026
20	DMS Mechanical LTD	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 19, 2026	51-200	42 contacts →
	Partial evidence “From HVAC-R and Plumbing to Gas and Controls, we're raising the bar in Mechanical Contracting.#BuildingYourFutureTogether” Source: RevenueBase Database · checked Sep 19, 2026
21	MSB Mechanical	Partial evidence	Newmarket, ON, CanadaHQ checked Sep 19, 2026	51-200	41 contacts →
	Partial evidence “A mechanical contractor serving the GTA, specializing in school and other commercial construction and renovations.” Source: RevenueBase Database · checked Sep 19, 2026
22	Enviro-Tech Mechanical Services LTD	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 19, 2026	51-200	41 contacts →
	Partial evidence “Enviro-Tech Mechanical is a well established HVAC and Refrigeration contractor that does both service & installation.” Source: RevenueBase Database · checked Sep 19, 2026
23	Climate Works Heating, Cooling & Plumbing	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 2026	51-200	35 contacts →
	Partial evidence “Climate Works is a leading mechanical service provider based in Ottawa, delivering professional heating, cooling, ventilation, and plumbing solutions to commercial, industrial…” Source: RevenueBase Database · checked Sep 19, 2026
24	MC Ventilation	Partial evidence	Blainville, QC, CanadaHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “L’expertise de MC Ventilation permet aux entreprises du secteur commercial et industriel de Montréal et des environs de profiter d’espaces de vente et de travail dont le climat…” Source: RevenueBase Database · checked Sep 19, 2026
25	Neve Refrigeration INC Groupe Neve	Partial evidence	Longueuil, QC, CanadaHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “Nous somme une entreprise qui œuvre dans le domaine de la climatisation, réfrigération, ventilation, plomberie, combustion commercial et industrielle.” Source: RevenueBase Database · checked Sep 19, 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: commercial hvac maintenance 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 commercial hvac maintenance companies.
Partial evidence: Its own public description names part of commercial hvac maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial hvac maintenance 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 818 commercial hvac maintenance companies based in Canada

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Commercial hvac maintenance companies based in Canada at a glance

As of Sep 19, 2026

40.5%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

6.6%Largest-city concentration · Toronto

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

412

11-50

287

51-200

201-500

501-1,000

1,001-5,000

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 818 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 commercial hvac maintenance 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 “commercial hvac maintenance 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 commercial hvac maintenance 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 commercial hvac maintenance 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, 2,714 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 19, 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.

Commercial hvac maintenance 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 commercial hvac maintenance 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 commercial hvac maintenance companies are there based in Canada?

RevenueBase identified 818 commercial hvac maintenance 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?

HTS Engineering, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most commercial hvac maintenance companies?

Toronto leads with 54 headquartered companies, followed by Calgary (47) and Edmonton (31).

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 2,714 verified decision-maker contacts tracked across these 818 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 19, 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.