Company lists · Data refreshed November 2026

Top 25 Water heating system installers based in Canada

RevenueBase identified 530 company matches for water heating system installers associated with Canada as of November 2026 and tracks 5,720 professional contacts across them, including 1,729 with verified work emails. Calgary is the largest hub.

This list covers company matches for water heating system installers 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
530Companies
5,720Contacts tracked
1,729Verified emails
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The 25 largest water heating system installers based in Canada

Ranked by team size
Top 25 of 530 company matches for water heating system installers 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchToronto, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,656 contacts →

Exact match

“As a leader in home services and energy efficient solutions for over 60 years, Reliance Home Comfort® (Reliance) is committed to being the Destination of Choice by delivering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMarkham, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,082 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSt. Catharines, ON, CanadaHQ recorded Nov 6, 20261,001-5,000199 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
4Exact matchNorth York, ON, CanadaHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“Go Lime is reimagining home comfort and energy solutions for Canadians, starting in Ontario and expanding across the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202651-200102 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
6Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-50093 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
7Exact matchAnjou, QC, CanadaHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“HydroSolution fut créée par Hydro-Québec en 1958 dans le but de promouvoir l’utilisation de l’électricité partout au Québec par le biais d’un service de location de chauffe-eau…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchToronto, ON, CanadaHQ recorded Nov 6, 2026201-50061 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
9Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“With a commitment to superior quality, strong relationships, extensive experience and providing assurance, we’re more than just great plumbers – we’re great partners too.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“IBC produces a full range of hydronic heating solutions for both residential and commercial use across North America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDartmouth, NS, CanadaHQ recorded Nov 6, 202651-20043 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
12Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202651-20035 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
13Exact matchRichmond, QC, CanadaHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Thermo has been designing and manufacturing high-performance heating equipment for domestic and hydronic systems for over 40 years for residential, commercial and institutional…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchVaughan, ON, CanadaHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Keeping your mechanical systems flowing is what Lisi does best, and since 1979, we have been doing just that.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“No plumbing or heating problem or emergency is ever expected.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCochrane, SK, CanadaHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“At Air West Mechanical, we’re dedicated to keeping our community comfortable year-round.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMississauga, ON, CanadaHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Heating, ventilation and air conditioning (or HVAC) is a modern technology which maintains temperature, good water pressure and chemical composition within the design parameters.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLangley, BC, CanadaHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Force Mechanical specializes in plumbing, gas and hot water heating installations in multi-family residential wood-frame projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMontréal-nord, QC, CanadaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“MATCO, c’est 70 ans d’expertise dans la distribution, l’entretien et la réparation de chaudières et de chauffe-eaux commerciaux et industriels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Anchor is a residential heating and cooling contractor specializing in replacement, repair and maintenance of home comfort systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWindsor, ON, CanadaHQ recorded Nov 6, 2026201-50016 contacts →

Exact match

“Fahrhall Home Comfort Specialists - Since 1967, Fahrhall has been providing reliable heating, cooling, plumbing and air quality sales, service and installation to residential…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMontreal, QC, CanadaHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“For over 75 years, Electro Aide has been the go-to name in Montreal for reliable heating, cooling, and air quality solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“For over 90 years the Francis Plumbing & Heating team has continued to provide ongoing excellence in water services including plumbing, heating, radiant floor heating, boilers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMississauga, CanadaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“We are a heating, cooling home comfort company in Mississauga, serving all of the GTA and surrounding areas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchOrillia, ON, CanadaHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Simcoe Muskoka Home Comfort is an HVAC company founded on the values of honesty, integrity, quality and transparency – these values translate into our commitment to our customers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 530 water heating system installers based in Canada

See the full list, filter by size, metro and specialty, and access 1,729 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water heating system installers based in Canada at a glance

As of Nov 6, 2026
30.2%Verified-email coverage
10.8Average contacts per company
1-10Median size (employees)
6.4%Largest-city concentration · Calgary
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
277
11-50
161
51-200
43
201-500
3
501-1,000
1
1,001-5,000
4

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 530 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 “water heating system installers” 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 1,729 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.

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

How many water heating system installers are there based in Canada?

RevenueBase identified 530 company matches for water heating system installers 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?

Reliance Home Comfort tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water heating system installers?

Calgary leads with 34 company records, followed by Edmonton (18) and Toronto (18).

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 1,729 professional contacts with verified work emails tracked across these 530 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.