Company lists · Data verified August 2026

Top 19 Basement waterproofing companies based in Canada

Name: Basement waterproofing companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 109 companies tracked

There are 109 basement waterproofing companies headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 372 professional contacts across them, including 54 with verified work emails and 19 with mobile numbers. Toronto is the largest hub.

This list covers basement waterproofing companies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

109Companies

372Contacts tracked

54Verified emails

19Mobile numbers

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The 19 largest basement waterproofing companies based in Canada

Ranked by team size

Top 19 of 109 basement waterproofing companies based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Nusite Contractors LTD	Toronto, ON	11-50	19	6
2	Advanced Basement Systems	Chatham, ON	11-50	18	3
3	Wise Cracks	Shelburne, ON	51-200	17	8
4	Abalon Construction Edmonton	Edmonton, AB	11-50	16	6
5	Penguin Basements, LTD	North York, ON	51-200	16	5
6	Durwest Construction Systems Alberta LTD	Calgary, AB	11-50	10	4
7	RCC Waterproofing	Stoney Creek, ON	51-200	6	1
8	ALL Season Weeping Tile	Calgary, AB	11-50	6	1
9	Rooterworx	Mississauga, ON	11-50	5	4
10	Elms Weeping Tile LTD	Acheson, AB	11-50	5	1
11	CAP Waterproofing & Drains	Burlington, ON	11-50	4	1
12	Truseal Injection INC	Vaughan, ON	11-50	3	3
13	GJ Macrae Foundation Repair	Oakville, ON	1-10	3	2
14	Harmony Basements Corp	Vaughan, ON	11-50	2	2
15	Ridgeback Basement Systems LTD	Dartmouth, NS	11-50	2	2
16	Crackmasters INC	Mississauga, ON	11-50	2	1
17	Basement Specialist	Dundas, ON	11-50	2	1
18	Renco Home Improvements	Otawa, ON	1-10	1	1
19	BBS Waterproofing INC	Cambridge	1-10	1	1

Showing 19 of 109 basement waterproofing companies based in Canada

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Basement waterproofing companies based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 11 HQs

19Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

5,001-10,000

Basement waterproofing companies by metro

Metro	Companies
Basement waterproofing companies in Toronto	11
Basement waterproofing companies in Calgary	7
Basement waterproofing companies in Edmonton	7
Basement waterproofing companies in Mississauga	5
Basement waterproofing companies in Windsor	3
Basement waterproofing companies in Ottawa	3
Basement waterproofing companies in Etobicoke	3
Basement waterproofing companies in Montreal	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “basement waterproofing companies”, with match quality audited by blind human judging, and headquartered in Canada.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many basement waterproofing companies are there based in Canada?

There are 109 basement waterproofing companies headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Nusite Contractors LTD, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most basement waterproofing companies?

Toronto leads with 11 headquartered companies, followed by Calgary (7) and Edmonton (7).

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 54 verified decision-maker contacts tracked across these 109 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.