Company lists · Data refreshed November 2026

Top 23 Slate roofing contractors based in Canada

RevenueBase identified 91 company matches for slate roofing contractors associated with Canada as of November 2026 and tracks 341 professional contacts across them, including 95 with verified work emails. Toronto is the largest hub.

This list covers company matches for slate roofing contractors 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
91Companies
341Contacts tracked
95Verified emails
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The 23 largest slate roofing contractors based in Canada

Ranked by team size
Top 23 of 91 company matches for slate roofing contractors 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 matchCalgary, AB, CanadaHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Advanced Level Roofing is your local roofing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchQuébec, QC, CanadaHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“418-TOITURE info@toitureqc.com TOUT POUR TOIT!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchToronto, ON, CanadaHQ recorded Nov 6, 2026201-50025 contacts →

Exact match

“For more than 103 years, Dominion Roofing has been the go-to roofing and siding contractor in Toronto and the GTA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSaint-marc-du-lac-long, QC, CanadaHQ recorded Nov 6, 202611-5017 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDieppe, NB, CanadaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Protect your business, condo, apartment complex, townhouse, warehouse with a reliable roof constructed by a professional roofing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“We are a fully licensed and registered commercial and residential roofing company in Ottawa/Gatineau with years of experience in roof replacement, roof-over, roof maintenance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEtobicoke, ON, CanadaHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“VIANA Roofing & Sheet Metal Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchUxbridge, ON, CanadaHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“With the philosophy of only selling the best and most beautiful, North Country Slate is the premier North American roofing slate distributor in providing technical support, design…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMarieville, QC, CanadaHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Le maître couvreur par excellence à votre service depuis 1967.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNorth York, ON, CanadaHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Toronto Roofing Company | Roofing Monkeys Protecting homes across Toronto with reliable, high-quality roofing solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBeamsville, ON, CanadaHQ recorded Nov 6, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLangley, BC, CanadaHQ recorded Nov 6, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Our Mission is to ensure that you're going to get top Quality workmanship, service, and products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202611-503 contacts →

Exact match

“We are Forever Green Roofing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBoisbriand, QC, CanadaHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBeloeil, QC, CanadaHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Nous avons à cœur le travail bien fait.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPort Coquitlam, BC, CanadaHQ recorded Nov 6, 202651-2002 contacts →

Exact match

“Mack Kirk was founded in 1908 and has grown to become one of the most reputable service roofing companies in the lower mainland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 202611-502 contacts →

Exact match

“For over a decade, the team at Roofshield has been building solid roofs of the highest quality for thousands of residences and commercial buildings in the Ottawa area.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBarrie, ON, CanadaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Your house requires a variety of upkeep,care,maintenance and sometimes it just needs a change.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchVal-d’or, CanadaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Pose de bardeaux d’asphalte sur toits en pente résidentiels, commerciaux ou institutionnels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchToronto, CanadaHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Roofing is an expensive investment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAurora, ON, CanadaHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Warner Roofing provides residential and commercial roofing services across York Region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOakville, ON, CanadaHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Solving All Your Roofing Needs.”

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

Showing 23 of 91 slate roofing contractors based in Canada

See the full list, filter by size, metro and specialty, and access 95 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Slate roofing contractors based in Canada at a glance

As of Nov 6, 2026
27.9%Verified-email coverage
3.7Average contacts per company
1-10Median size (employees)
11.0%Largest-city concentration · Toronto
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
44
11-50
30
51-200
10
201-500
1

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 91 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 “slate roofing contractors” 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 95 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.

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 “slate roofing contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many slate roofing contractors are there based in Canada?

RevenueBase identified 91 company matches for slate roofing contractors 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?

Advanced Level Roofing tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most slate roofing contractors?

Toronto leads with 10 company records, followed by Ottawa (7) and Etobicoke (5).

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 95 professional contacts with verified work emails tracked across these 91 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.