Company lists · Data refreshed November 2026

Top 25 Heating system maintenance services based in Canada

Name: Heating system maintenance services based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 1,217 companies tracked

RevenueBase identified 1,217 company matches for heating system maintenance services associated with Canada as of November 2026 and tracks 7,349 professional contacts across them, including 1,997 with verified work emails. Calgary is the largest hub.

This list covers company matches for heating system maintenance services 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 November 6, 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 Nov 6, 2026 How this list was built

1,217Companies

7,349Contacts tracked

1,997Verified emails

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The 25 largest heating system maintenance services based in Canada

Ranked by team size

Top 25 of 1,217 company matches for heating system maintenance services based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Gateway Mechanical Services	Exact match	Edmonton, SK, CanadaHQ recorded Nov 6, 2026	201-500	220 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Right Time Group Of Companies	Exact match	St. Catharines, ON, CanadaHQ recorded Nov 6, 2026	1,001-5,000	199 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Arpi's Industries LTD	Exact match	Calgary, AB, CanadaHQ recorded Nov 6, 2026	51-200	158 contacts →
	Exact match “Arpi’s Industries, a full service mechanical contractor, provides heating, air conditioning, ventilation, plumbing, and air quality solutions to residential and commercial markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Milani Plumbing, Heating, & AIR Conditioning	Exact match	Burnaby, BC, CanadaHQ recorded Nov 6, 2026	51-200	102 contacts →
	Exact match “Milani has been specializing in servicing the plumbing, drainage and heating needs of commercial and residential clients since 1956.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Olympic International Sales Limited	Exact match	North Vancouver, BC, CanadaHQ recorded Nov 6, 2026	51-200	96 contacts →
	Exact match “Olympic International is a premier provider of heating, ventilating and air conditioning (HVAC) equipment design, engineering support and training serving Western Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Baulne	Exact match	Lachine, QC, CanadaHQ recorded Nov 6, 2026	51-200	96 contacts →
	Exact match “BAULNE is a company based in Montreal and Quebec City, providing HVAC building mechanics services (heating/cooling) for the following sectors: industrial, commercial…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Action Furnace INC	Exact match	Calgary, AB, CanadaHQ recorded Nov 6, 2026	201-500	93 contacts →
	Exact match “Trusted Furnace, Air Conditioner, & Water Heater Repair/Installation Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	GNR Corbus	Exact match	Sherbrooke, QC, CanadaHQ recorded Nov 6, 2026	201-500	65 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Lar-Mex INC	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	62 contacts →
	Exact match “Lar-Mex with a staff of over 200 employees has been providing heating, ventilation, plumbing and air conditioning (HVAC) services to the National Capital region for over 30 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Lysair	Exact match	Laval, QC, CanadaHQ recorded Nov 6, 2026	51-200	61 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Simply Green Home Services INC	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	201-500	61 contacts →
	Exact match “Simply Green offers a wide range of options to help you get equipped with reliable, top-quality, high-efficiency heating and cooling systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Mécanique RH	Exact match	Laval, QC, CanadaHQ recorded Nov 6, 2026	51-200	58 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	PSL Patrick Sprack LTD	Exact match	Sudbury, ON, CanadaHQ recorded Nov 6, 2026	51-200	53 contacts →
	Exact match “PSL is one of the fastest growing mechanical service providers in Northern Ontario.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Atlascare	Exact match	Oakville, ON, CanadaHQ recorded Nov 6, 2026	51-200	50 contacts →
	Exact match “AtlasCare is in business to improve the quality of life for our employees, customers, suppliers and communities through our passion for serving others.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	A1 AIR Conditioning & Heating	Exact match	Oakville, ON, CanadaHQ recorded Nov 6, 2026	51-200	45 contacts →
	Exact match “A1 Air Conditioning & Heating is the GTA’s finest residential and commercial heating and cooling contractor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Maritime Pressure Works Limited	Exact match	Dartmouth, NS, CanadaHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “Maritime Pressure Works Limited is a Nova Scotia owned and operated company founded in 1998.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Confort Expert INC	Exact match	Anjou, QC, CanadaHQ recorded Nov 6, 2026	51-200	42 contacts →
	Exact match “En opération depuis plus de 25 ans, Confort Expert a su gagner la confiance d’acteurs majeurs dans le domaine de l’énergie; nous sommes depuis plusieurs années partenaire…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Airtron Canada	Exact match	Mississauga, QC, CanadaHQ recorded Nov 6, 2026	1,001-5,000	41 contacts →
	Exact match “Airtrons Canada is a national provider of HVAC, Building Automation and Energy Services for Canadian businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Neve Refrigeration INC Groupe Neve	Exact match	Longueuil, QC, CanadaHQ recorded Nov 6, 2026	11-50	39 contacts →
	Exact match “Nous somme une entreprise qui œuvre dans le domaine de la climatisation, réfrigération, ventilation, plomberie, combustion commercial et industrielle.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Duraclim	Exact match	Montreal, QC, CanadaHQ recorded Nov 6, 2026	51-200	39 contacts →
	Exact match “Chez DuraClim, nous sommes déterminés à garantir votre confort tout au long de l'année.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Climate Works Heating, Cooling & Plumbing	Exact match	Ottawa, ON, CanadaHQ recorded Nov 6, 2026	51-200	35 contacts →
	Exact match “Climate Works is a leading mechanical service provider based in Ottawa, delivering professional heating, cooling, ventilation, and plumbing solutions to commercial, industrial…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Xtra Mechanical Limited	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	11-50	33 contacts →
	Exact match “Xtra Mechanical Limited is Canada’s leading commercial HVAC provider, offering professional, responsive and safety-driven solutions to the complete product lifecycle, for single…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Airstream Heating & AIR Conditioning INC	Exact match	Burnaby, BC, CanadaHQ recorded Nov 6, 2026	51-200	32 contacts →
	Exact match “Locally owned and operated for over 35 years, Airstream delivers expert HVAC solutions across the Lower Mainland and Fraser Valley.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Icom Mechanical Solutions	Exact match	Edmonton, AB, CanadaHQ recorded Nov 6, 2026	51-200	30 contacts →
	Exact match “Mechanical systems are critical to building performance-and when they fail, operations, comfort, and costs are all impacted.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Merrit Building Solutions INC	Exact match	Vaughan, ON, CanadaHQ recorded Nov 6, 2026	11-50	30 contacts →
	Exact match “Merrit is an integrated building services provider within the multi-residential industry serving both the growing condominium market and high-rise apartment sector by providing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “heating system maintenance services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,217 heating system maintenance services based in Canada

See the full list, filter by size, metro and specialty, and access 1,997 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heating system maintenance services based in Canada at a glance

As of Nov 6, 2026

27.2%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

6.5%Largest-city concentration · Calgary

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

630

11-50

391

51-200

100

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 1,217 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 “heating system maintenance services” 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 1,997 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 November 6, 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.

Heating system maintenance services by metro

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 “heating system maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heating system maintenance services are there based in Canada?

RevenueBase identified 1,217 company matches for heating system maintenance services associated with Canada as of November 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?

Gateway Mechanical Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most heating system maintenance services?

Calgary leads with 79 company records, followed by Toronto (71) and Edmonton (43).

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 1,997 professional contacts with verified work emails tracked across these 1,217 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 November 6, 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.