Guide

What is a plumbing contractor worth?

What a plumbing contractor sells for can be affected by due diligence and by how involved the seller stays after the sale, among other factors BDC lists. Before you set a price, ask how repeat calls, testing contracts, permit records and reliance on one plumber would look to a buyer.

Reviewed

BDC says the final selling price can be affected by numerous factors, including due diligence and your post-transaction involvement in the company, so two plumbing companies with the same revenue need not sell for the same amount. Look at what stands behind the revenue: who the customers call, who answers, who holds the credentials, and what paperwork proves the work was done properly. This guide covers questions a buyer may ask about value in this trade. It gives no multiples and no price ranges, because a number from a page cannot account for your books, your region or your people. For the general methods, see what is a trades business worth.

Repeat calls versus one-off projects

A plumbing contractor may earn from a blend of dispatched service calls, renovation work and new-construction jobs. Ask how much of that income comes from customers who have called before and how much depends on winning each project bid from scratch, because a buyer may ask the same question. Ask your accountant to split revenue by source for several years. Be ready to show how steady the repeat-call base is compared with project income.

Recurring compliance contracts

If the company holds contracts for recurring testing, such as backflow-prevention or cross-connection testing, confirm what each contract actually requires, who on staff is certified to do the testing, and whether the customer can end the arrangement on short notice. For any contract that depends on a certification held by one person, ask what would happen to it if that person left.

What gets discounted

Two things a buyer may question are dependence on the owner and missing proof. If customers ask for the owner by name, a buyer has to decide how much of the reputation belongs to the company and how much walks out with the person. If there is no dispatch system, growth may rest entirely on the owner’s personal network. Incomplete permit and inspection records for recent installations raise a different worry, because the buyer may inherit the problem. BDC notes that a buyer may insist on a reduced price if the seller chooses to cut all ties, so a planned handover period can protect value.

Recasting the owner’s earnings

Ask how a buyer would rebuild the profit shown on the tax return: removing costs that belong to the owner rather than the business and charging a fair wage for the work the owner does. The add-backs entry explains the idea. For a plumbing company, look at the owner’s truck, any family members on payroll, one-time repairs and whether the owner billed jobs at friendly rates. Each adjustment needs paper behind it. If part of service income is paid in cash, be ready to show how it was recorded and that deposits match invoices.

Questions to put to your advisers

BDC says an accountant helps prepare year-end and interim financial statements, projections and other documents that buyers typically ask to see as part of due diligence. Before you talk price, ask your accountant which of those documents you could produce today and which would take weeks. Ask what records support each add-back, how revenue by source could be shown, and which contracts or certifications you would need to explain. Ask a lawyer familiar with business transitions what a buyer could ask you to confirm in writing. Gaps found early can be fixed on your timetable rather than a buyer’s.

Why similar shops price differently

Ask whether differences in service-area density, response-time reputation or specialty equipment such as drain-jetting trucks and camera-locating gear could change what a buyer would pay for two similar shops. Ask what the equipment is worth to someone who would otherwise hire a subcontractor, and whether it is fully paid for or still financed.

  • Split revenue by repeat service, project work and testing contracts for several years.
  • List every owner-related cost so each add-back can be shown on paper.
  • Identify which customers ask for a specific plumber and plan how that relationship moves.
  • Gather permit and inspection records for recent installations before a buyer asks.
  • Confirm who holds testing certifications and whether they will stay.

How the sale paperwork treats value

The Canada Revenue Agency notes that a sales agreement may set a price for each asset, a value for inventory and, where it applies, an amount attributed to goodwill. It also says there may be recapture or a terminal loss of capital cost allowance on the sale of assets. Ask an accountant to model how the split would affect your tax before you sign. Nothing here values your business; a qualified professional does that.

Sources

Every requirement and figure referenced in this guide traces to a primary source. Links were last confirmed on the dates shown.

  1. 01
    Canada Revenue AgencyGovernment
    Selling a business
    canada.ca·Checked Aug 14, 2026
  2. 02
    Business Development Bank of CanadaIndustry
    How to sell your business
    bdc.ca·Checked Aug 14, 2026
  3. 03
    Skilled Trades OntarioRegulator
    Certificate of Qualification
    skilledtradesontario.ca·Checked Aug 16, 2026
  4. 04
    Mechanical Contractors Association of CanadaIndustry
    Home - Mechanical Contractors Association- Canada
    mcac.ca·Checked Aug 31, 2026

Deavo is an advertising and listings platform, not a brokerage, law firm or valuation firm. This page is general information, not legal, tax, accounting or valuation advice, and rules differ by province. Confirm anything you rely on with a qualified professional before you act on it.