How Much Is a Plumbing Business Worth?

How plumbing businesses are priced

Normalize the earnings first, and be strict about the owner. In this sector the owner is often billing as a technician, running dispatch, and selling every large job. Expense all of that at market replacement cost — a licensed service plumber, a dispatcher, and a salesperson are three real salaries — before you apply any multiple. A shop reporting $300,000 of SDE where the owner does the work of two and a half people is not a $300,000 shop.

Then split revenue by type: residential service and repair, residential replacement, commercial service, commercial contract, and new construction. Buyers pay very different multiples for those dollars, and a blended multiple applied to a blended P&L hides the difference. For the underlying mechanics — add-backs, SDE versus EBITDA, and working capital at close — see how to value a business.

What moves the multiple

• Service mix — Recurring residential service and repair is the highest-quality revenue: immediate collection, thousands of customers, flat-rate margins. Builder-dependent new construction is the lowest: concentrated, cyclical, and slow to pay.
• Owner independence — A service manager and a dispatcher who already run the day-to-day are worth a full turn versus an owner who dispatches from a truck. This is the clearest lever a seller can pull and the clearest thing a buyer should check.
• Licensed technician bench — Tenure, licence level, and pay structure for every tech. Licensed plumbers are scarce; two leaving at close can take a large share of billable capacity with them.
• Recurring maintenance agreements — A live base of paid service plans is contracted future revenue and the closest thing this sector has to subscription income. Count active members and check renewal rates, not just the headline number.
• Customer concentration — Thousands of homeowners is a business. Three general contractors and a property-management group is a relationship, and relationships often leave with the seller.
• Fleet age and condition — A well-maintained fleet supports the top of the range; an old, high-mileage fleet is a replacement schedule you inherit and should be priced as a deduction.
• Review profile and lead sources — A strong local review base and a working service-area presence are transferable demand. Leads that come from the owner's personal network mostly are not.

What pulls the price down

These are the findings that most often reprice a plumbing company between the letter of intent and the closing table. Each is a reason to bid below the mid-range, or to move part of the price into a seller note or a retention-linked earnout.

• A company licence that qualifies through the departing seller, with no employee able to take it over and no plan for the transition.
• Stated SDE that never expenses the owner's billable, dispatch, and sales hours at market.
• Revenue concentrated in one or two builders or property managers, especially without written contracts.
• Callback and warranty rates the seller cannot document, which usually means they have never been measured.
• Underbilled or stale work in progress, and receivables that are older than the seller's ageing report suggests.
• A fleet averaging eight to ten years old with no replacement reserve in the reported earnings.
• Technicians paid above market with no agreements, or below market with an obvious re-rate coming.

Worked example: a $320,000 SDE five-truck shop

A five-truck residential shop reports $1.9M of revenue and $320,000 of SDE. The owner still runs about $180,000 of billable service work a year and handles all dispatch. Replacing that is roughly a $95,000 licensed service plumber and a $52,000 dispatcher, but the owner is only doing part of each role, so a defensible normalization is about $85,000 — taking normalized SDE to around $235,000. Revenue is 70% residential service and replacement and 30% builder work, which is a healthy mix. At a mid-range 2.5x, the business is roughly $590,000.

Now adjust. There are 340 active maintenance-plan members renewing at a documented rate (up). Four of the five techs have three-plus years of tenure and have met the buyer (up). But the state requires a qualifying master plumber and the seller holds it, with the lead tech eligible but not yet licensed (a real risk, and a reason to structure rather than to discount blindly), and two vans are past 190,000 miles (down, roughly $70,000 to replace over two years). A realistic structure lands nearer $560,000–$620,000, with a portion held in a seller note contingent on the licence transition completing and the van replacement reflected in the price.

Before you rely on any of this

Market ranges orient a first conversation; they do not price a deal, and in the trades the licence question should be answered before you spend money on anything else. Once you are past the initial screen, get three years of tax returns, reconcile them to the P&L and to the field-service software, pull revenue by job type, and confirm with your state board exactly how the company licence transfers. Working through our due diligence checklist before you sign a letter of intent is the cheapest money you will spend on the transaction.

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