1,244+ acquisition-ready plumbing companies mapped in Ontario. Companies with a known founding date average 5 years in business, a succession signal.
Who this page is for. Buyers sourcing off-market plumbing companies in Ontario.
Updated Jun 6, 2026. See your match on a free live map.
No sign-in. Describe your thesis and get a live deal map of owner-led businesses that match it.
See these targets freeThe owner is named on 41% of the companies we hold here, and named with a way to reach them on 4%. We will not sell you a contact pack this thin. If you want this market worked properly it is a sourcing engagement, and the first step is a conversation.
A sourcing mandate is a fixed fee, scoped on the call, delivered in 10 days, and we build and enrich the shortlist for you. The call decides whether it is worth running.
Ontario plumbing businesses are sourced from OpenStreetMap records, SBA loan registry data, and state business license filings where available. Each of the 1,244 mapped companies is scored using years in operation where known, customer review signals, and estimated revenue to produce the Acquisition Fit Score used to rank targets. Request the map, then book a 30-minute target review to rank the top 10 and scope how we reach them.
The plumbing market in Ontario presents a robust acquisition opportunity, with 1,244+ mapped businesses across diverse regional landscapes. This sector benefits from a stable and growing economy, underpinned by ongoing residential and commercial infrastructure development. Acquirers are drawn to Ontario's well-regulated industry, which includes stringent safety standards for water systems, ensuring that plumbers operate within clear regulatory frameworks. The typical business profile consists of locally rooted enterprises offering comprehensive plumbing services, making them integral to both established communities and burgeoning urban areas.
Serava maps and scores all 1,244 plumbing companies in Ontario by years in business, fit, and exit signals, and has flagged 25 as succession-stage (15+ years in business). The full ranked list and fit scores unlock inside your deal map.
Ontario's 1,244 mapped plumbing targets span 4 cities. The top three markets, Toronto (353), Ottawa (135), Mississauga (118), represent 49% of the total. Businesses here average 5 years in business across Ontario.
Buyers are actively searching this market. We are seeing active demand for companies like this. Check buyer interest privately for Plumbing businesses in Ontario.
We are seeing active demand for companies like this.
Buyer names are not disclosed without permission; this proof uses anonymized demand category, size, geography, and criteria only.
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Ranked target map, websites, fit-score rationale, and shortlist export. This vertical has no owner-contact layer, so reaching owners is a sourcing engagement rather than an export.
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Serava.AI has mapped 1,244 acquisition-ready plumbing companies in Ontario. The largest concentrations are in Toronto (353), Ottawa (135), Mississauga (118). These are active, operating businesses with a minimum of 5 years in business, scored for owner exit readiness and financial profile. Not all are actively listed for sale: the majority are off-market targets that have not yet engaged a broker.
Revenue for plumbing companies in Ontario varies by size, but most SMB-scale targets in our database fall in the $1M to $15M annual revenue range. Serava.AI provides revenue estimates benchmarked from payroll data, OSM business data, and SBA loan records. Businesses in this market average 5 years in business (among those with a known founding date).
Key signals for a high-quality plumbing acquisition include: a long operating history (15+ years in business), stable recurring or repeat revenue, strong online ratings (4.0+ with 20+ reviews), an established local customer base, and a skilled technical workforce. Serava.AI's Acquisition Fit Score (0 to 100) weighs all of these factors and benchmarks each company against your specific buyer criteria.
Many plumbing business acquisitions start with off-market research before an owner runs a brokered process. Serava.AI maps plumbing companies in Ontario using years in business and local market data, then helps qualified buyers prioritize outreach with available contact-signal coverage.
Plumbing companies in Ontario typically trade at 3x to 6x EBITDA, depending on revenue concentration, customer contracts, and owner dependency. A business with $2M revenue and 12% EBITDA margins ($240k EBITDA) would price between $720k and $1.44M. Businesses with recurring contracts, a long operating history, and clean books command higher multiples.
The top plumbing acquisition markets in Ontario by company volume are: Toronto (353 companies), Ottawa (135 companies), Mississauga (118 companies), Hamilton (101 companies). Toronto leads the state with 353 mapped plumbing operators. Serava.AI ranks targets within each city by acquisition fit score, so buyers can focus on the highest-signal companies in their target markets.
Serava.AI maps plumbing acquisition targets in Ontario from OpenStreetMap records, Companies House (UK), SBA loan registry data, and state business license filings. The 1,244 mapped companies are each scored 0 to 100 on acquisition fit using years in business (average 5 years in this market, where known), customer review ratings, and estimated revenue. Scores above 80 represent high-priority outreach targets with strong succession signals. Data is refreshed regularly via our automated scraping pipeline.
Serava maps 1,244 plumbing businesses in Ontario from public registries, licensing boards, and corporate filings, with an average of about 5 years in business where the founding date is known. We filter out chains, nonprofits, and the inactive records we can detect, but some listings may still be inactive or mis-tagged.
Each is scored 0 to 100 on years in business, succession signals, and contact reachability, so the result is a ranked set of owner-led targets that are not posted on any marketplace.
Built and maintained by Serava, founder Sadra Khorvash. Last updated October 2026.
See how many owner-led plumbing businesses in Ontario match your thesis, free.
See these targets freeOwner-direct contacts are thin in this market: we hold a named owner and a way to reach them on the same record for 4% of the companies here. Pro here includes 20 owners a month, researched by hand from your own map: the owner's name and the business phone, each with the public page it came from, within 3 business days. An owner we cannot find does not count toward the 20.