Company lists · Data refreshed September 2026

Top 25 Plumbing design build firms based in Canada

Name: Plumbing design build firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 686 companies tracked

RevenueBase identified 686 plumbing design build firms headquartered in Canada as of September 2026 and tracks 3,672 professional contacts across them, including 1,064 with verified work emails. Calgary is the largest hub.

This list covers plumbing design build firms 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 20, 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 20, 2026 86% judged on-target in blind review

686Companies

3,672Contacts tracked

1,064Verified emails

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The 25 largest plumbing design build firms based in Canada

Ranked by team size

Top 25 of 686 plumbing design build firms based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to plumbing design build firms: 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	Pitt Meadows Plumbing	Strong evidence	Maple Ridge, BC, CanadaHQ checked Sep 20, 2026	201-500	144 contacts →
	Strong evidence “At Pitt Meadows Plumbing, we don’t just build mechanical systems-we build something iconic.” Source: RevenueBase Database · checked Sep 20, 2026
2	Milani Plumbing, Heating, & AIR Conditioning	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 20, 2026	51-200	95 contacts →
	Partial evidence “Milani has been specializing in servicing the plumbing, drainage and heating needs of commercial and residential clients since 1956.” Source: RevenueBase Database · checked Sep 20, 2026
3	Dilfo Mechanical	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	51-200	68 contacts →
	Strong evidence “Dilfo Mechanical Limited is one of Eastern Ontario’s largest mechanical contracting firms, specializing in the full range of services, from large-scale design-build projects to…” Source: RevenueBase Database · checked Sep 20, 2026
4	LPI Mechanical	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 20, 2026	51-200	67 contacts →
	Indirect evidence “For the last 24 years, LPI Mechanical Inc.” Source: RevenueBase Database · checked Sep 20, 2026
5	Lar-Mex INC	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	51-200	57 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
6	Can-Aqua International	Indirect evidence	Laval, QC, CanadaHQ checked Sep 20, 2026	51-200	55 contacts →
	Indirect evidence “Chez Can-Aqua International, nous mettons notre expertise au service de nos clients depuis plus de 55 ans.” Source: RevenueBase Database · checked Sep 20, 2026
7	Canyon Plumbing And Heating LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	51-200	55 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
8	Charbonneau	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	201-500	51 contacts →
	Indirect evidence “Avec plus de 100 ans d’expertise, Charbonneau est le chef de file dans le domaine de la plomberie, du chauffage et de la climatisation dans le Grand Montréal et ses environs.” Source: RevenueBase Database · checked Sep 20, 2026
9	Priority Mechanical LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 20, 2026	51-200	50 contacts →
	Indirect evidence “Priority Mechanical is one of Edmonton’s largest, most trusted, and most respected mechanical construction contractors.” Source: RevenueBase Database · checked Sep 20, 2026
10	Jenaco	Indirect evidence	Saint-hubert, QC, CanadaHQ checked Sep 20, 2026	51-200	43 contacts →
	Indirect evidence “Chez Jenaco, nous ne reculons pas devant les défis de taille.” Source: RevenueBase Database · checked Sep 20, 2026
11	TPH Plumbing & Heating	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	11-50	40 contacts →
	Partial evidence “Since 1986, we have been providing commercial, industrial and institutional piping, plumbing and heating services to Ottawa and Eastern Ontario.” Source: RevenueBase Database · checked Sep 20, 2026
12	Remedy Engineering	Strong evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	11-50	39 contacts →
	Strong evidence “Remedy Engineering's comprehensive mechanical design experience includes heating, ventilation and air conditioning (HVAC), plumbing and drainage, and fire protection systems.” Source: RevenueBase Database · checked Sep 20, 2026
13	Caon Services INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	11-50	37 contacts →
	Indirect evidence “Welcome to Caon Services Inc.” Source: RevenueBase Database · checked Sep 20, 2026
14	Climate Works Heating, Cooling & Plumbing	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 20, 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 20, 2026
15	Edge Construction Design	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	31 contacts →
	Partial evidence “EDGE Construction is a group of diverse construction and design professionals who bring to the company well over 100 years of combined experience in the construction industry.” Source: RevenueBase Database · checked Sep 20, 2026
16	Four Lakes Mechanical LTD	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 20, 2026	51-200	31 contacts →
	Partial evidence “We provide high-quality plumbing, heating, ventilation, air-conditioning, fire protection and specialty piping services.” Source: RevenueBase Database · checked Sep 20, 2026
17	Amsted Design-Build	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 20, 2026	11-50	30 contacts →
	Strong evidence “We are a full-service residential design-build company, serving the areas of Ottawa, Brockville, and everywhere in between!” Source: RevenueBase Database · checked Sep 20, 2026
18	Primo Mechanical INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
19	Icon Industrial Contractors LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 20, 2026	51-200	26 contacts →
	Indirect evidence “Icon Industrial Contractors Ltd is a construction company based out of 12849 141 St NW, Edmonton, Alberta, Canada.” Source: RevenueBase Database · checked Sep 20, 2026
20	Northern Sprinkler Design	Partial evidence	London, ON, CanadaHQ checked Sep 20, 2026	11-50	25 contacts →
	Partial evidence “Northern Sprinkler Design was formed from a belief that sprinkler design should be created with the end result in the forefront of our minds.” Source: RevenueBase Database · checked Sep 20, 2026
21	Guest Plumbing & Hvac	Strong evidence	Ancaster, ON, CanadaHQ checked Sep 20, 2026	11-50	25 contacts →
	Strong evidence “Guest Plumbing & HVAC provides high-end design-build services for commercial and residential Plumbing and HVAC needs across Ancaster, Hamilton, Toronto, Oakville…” Source: RevenueBase Database · checked Sep 20, 2026
22	Leader Plumbing & Heating	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 20, 2026	51-200	24 contacts →
	Partial evidence “With a caring and dedicated team, Leader Plumbing and Heating specializes in plumbing and mechanical installations for HiRise, MidRise, LowRise, Custom Home and…” Source: RevenueBase Database · checked Sep 20, 2026
23	Conestogo Mechanical INC	Strong evidence	Kitchener, ON, CanadaHQ checked Sep 20, 2026	51-200	24 contacts →
	Strong evidence “Mechanical contracting and building services, commercial, industrial and institutional plumbing and piping, HVAC, sheet metal design and fabrication, building automation controls.” Source: RevenueBase Database · checked Sep 20, 2026
24	Quality Mechanical	Indirect evidence	Belleville, ON, CanadaHQ checked Sep 20, 2026	51-200	23 contacts →
	Indirect evidence “Quality is not just a name, but a standard we strive for on every project.” Source: RevenueBase Database · checked Sep 20, 2026
25	Culliton	Indirect evidence	Stratford, ON, CanadaHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “At CULLITON, we know that you want building systems that work.” Source: RevenueBase Database · checked Sep 20, 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: plumbing design build firms. 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 plumbing design build firms.
Partial evidence: Its own public description names part of plumbing design build firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plumbing design build firms. 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 686 plumbing design build firms based in Canada

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Plumbing design build firms based in Canada at a glance

As of Sep 20, 2026

29.0%Verified-email coverage

5.4Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · Calgary

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

376

11-50

209

51-200

201-500

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 686 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 plumbing design build firms, 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 “plumbing design build firms”. 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 plumbing design build firms), 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 plumbing design build firms, 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, 1,064 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 20, 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.

Plumbing design build firms 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 plumbing design build firms, 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 plumbing design build firms are there based in Canada?

RevenueBase identified 686 plumbing design build firms 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?

Pitt Meadows Plumbing, headquartered in Maple Ridge, tops this list with the largest team on record.

Which city has the most plumbing design build firms?

Calgary leads with 36 headquartered companies, followed by Toronto (33) and Edmonton (28).

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 1,064 verified decision-maker contacts tracked across these 686 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 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 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.