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Selling a business · Selling a Plumbing Business
Plumbing · Gas fitting · Drainage

Selling your plumbing business? Know your number before anyone else does.

What Australian plumbing businesses are actually worth, what buyers pay premiums for, and the licence and owner-dependency issues that quietly kill deals.

Most Australian plumbing businesses that change hands sell for between 2.0 and 3.5 times normalised EBITDA. Larger operations with contracted maintenance revenue, a second tier of management and licences held by employees rather than the owner can reach 4 to 5 times. The single biggest driver of the gap is not revenue: it is how much of the business walks out the door with the owner.

Typical range · normalised EBITDA
2.0–3.5×

To 5.0× at the premium end: service and maintenance contracts, 10+ field staff, licences held beyond the owner.

Indicative market observation, not a valuation of your business. Where your business sits in, or beyond: the band is exactly what a valuation establishes.

What buyers pay a premium for

  • ·Service and maintenance revenue over one-off project work: contracted strata, real estate and commercial accounts are the strongest signal
  • ·A licensed supervisor or nominee who is not the selling owner, so the licence survives settlement
  • ·Ten or more field staff with a scheduler or operations lead between the owner and the tools
  • ·Clean, accountant-prepared financials with owner add-backs that survive scrutiny
  • ·Documented systems: job management software, priced service catalogue, safety and compliance records

What quietly kills plumbing deals

The most common failure is licence dependency: in every state the contractor licence effectively hangs on a nominated individual, and in owner-operator businesses that individual is the seller. If no employee holds the qualified supervisor or nominee position, the buyer is not buying a business: they are buying a job application. The second killer is project concentration: a book of one-off builds with no recurring base is valued closer to the bottom of the band, and sometimes below it. The third is financials that mix lifestyle spending through the P&L so heavily that normalised earnings cannot be supported.

Who is buying plumbing businesses

Four buyer groups are active in Australia: individual owner-operators buying a livelihood (typically sub-$1M deals, bank-financed and fragile), interstate and adjacent-trade strategics adding a service line, franchise and consolidator groups building maintenance density, and, increasingly, private-equity-backed platforms importing the US trades roll-up playbook. The premium buyers are the last two, and they only engage above roughly $1M of sustainable EBITDA with contracted revenue.

When to start

Two to three years before you want to be out. That is how long it takes to move the levers a buyer actually prices: shifting revenue mix toward maintenance contracts, getting a supervisor licensed, stepping out of daily scheduling, and producing two clean financial years. A valuation now tells you which levers are worth pulling and what each is worth to your exit price.

Common questions.

My licence is the business licence. Can I still sell?+

Yes, but the structure matters and the price suffers if you leave it late. Buyers either require a licensed employee in place before completion, or they hold part of the price back while you remain the nominee through a transition. Getting a senior tradesperson licensed 12 to 24 months before sale is usually the highest-return preparation step available.

Is revenue or EBITDA what buyers price?+

EBITDA, normalised for a market salary for the owner. A $3M-revenue business running at an 8% margin is worth materially less than a $2M business at 20%. Rules of thumb quoted on revenue are how owners end up anchored to numbers no buyer will pay.

What does the maintenance-contract premium actually look like?+

A project-only plumbing business and a contract-weighted one with identical EBITDA can sit a full turn of EBITDA apart: often more than $500,000 of price on the same earnings. Contracts are the difference between a buyer purchasing history and purchasing a future.

Related industries

Where does your business sit in the band?

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What is my business worth?

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Small Business Valuation

$1,495 + GST

For a business with annual turnover under $2 million. Signed and delivered in 2 business days. Delivery time starts once payment and all required information have been received. The fee is fixed in writing before we start and never tied to the outcome.

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