Most plumbing and HVAC owners have no idea their business is worth 2–4x their annual earnings. Here's what buyers actually pay — and what drives your number up or down.
Most plumbing and HVAC businesses sell for 2.0x to 4.0x Seller's Discretionary Earnings (SDE) — the total economic benefit a working owner extracts from the business annually, including salary, profit, and add-backs.
A business generating $250,000 in SDE typically sells in the range of $500,000 to $1,000,000. Where you land in that range depends almost entirely on four factors: recurring revenue, owner dependency, equipment condition, and licensed staffing depth.
Quick example: A plumbing business with $800,000 revenue, $220,000 SDE, 3 licensed plumbers on staff, and 150 active service plan customers would likely sell for $550,000–$770,000 (2.5x–3.5x SDE). The same business with no service plans and the owner doing most of the work might sell for $330,000–$440,000 (1.5x–2.0x SDE).
Sophisticated buyers and business brokers use three methods to arrive at a value. Here's how each one applies to trades businesses:
This is the dominant valuation method for Main Street trades businesses under $5M in revenue. SDE = Net profit + owner salary/draws + non-cash expenses + one-time costs. The SDE multiple reflects how attractive the business is to a buyer-operator.
Buyers also look at revenue multiples as a sanity check. For plumbing and HVAC, this typically ranges from 0.30x to 0.70x annual revenue. A highly profitable HVAC company might trade at 0.65x revenue while a low-margin plumbing outfit might trade at 0.35x.
This establishes the minimum value — the sum of your tangible assets (vehicles, equipment, inventory) plus goodwill. For well-equipped trades businesses, this can be substantial. A fleet of 5 service vans plus $80,000 in tools and equipment establishes a meaningful asset floor.
| Business Profile | SDE Multiple | Key Driver |
|---|---|---|
| Owner-operator, no staff, emergency only | 1.2x – 1.8x | High key-person risk |
| Small crew (2–3 techs), minimal recurring | 1.8x – 2.5x | Some scalability |
| Established crew, service plan base | 2.5x – 3.5x | Recurring revenue + reduced dependency |
| Multi-location or strong commercial contracts | 3.0x – 4.5x | Scale + contracted revenue |
| HVAC with 500+ active maintenance plans | 3.5x – 5.0x | High recurring MRR, strong retention |
Nothing moves the needle on a plumbing or HVAC valuation more than recurring maintenance agreements. A buyer paying 3x SDE for your business needs confidence that revenue will continue after the sale. Service plan members provide exactly that.
HVAC businesses with 300+ active maintenance plan customers routinely command 0.5x–1.0x higher multiples than comparable businesses without them. At $300,000 SDE, that's a $150,000–$300,000 difference in sale price.
If you don't have a formal service plan program, this is the highest-ROI improvement you can make before selling. Even 12–18 months of building a membership base will materially increase your valuation.
Buyers are purchasing a business — not a job. If your plumbing or HVAC company cannot operate without you, buyers will discount heavily or walk away entirely.
Key warning signs that hurt value:
Businesses with at least one licensed technician who can run day-to-day operations independently sell for meaningfully more and attract a wider buyer pool including private equity and strategic acquirers.
Trades licensing is a double-edged sword in valuations. On the positive side, licensing requirements create a moat — competitors can't easily enter your market. On the negative side, if the license is held personally by the selling owner, there's a transition risk.
Buyers will pay a premium for businesses where:
The most active buyers for plumbing and HVAC businesses in 2026 are:
PE roll-up opportunity: If your HVAC business generates $500,000+ in SDE and has a solid service plan base, you may qualify for private equity interest. PE-backed roll-ups are aggressively acquiring trades businesses in 2025–2026 and often pay 4x–6x SDE for the right profile.
| Business | Revenue | SDE | Multiple | Sale Price |
|---|---|---|---|---|
| Solo plumber, owner-operated | $420K | $140K | 1.8x | ~$252K |
| 3-tech plumbing co., residential focus | $780K | $195K | 2.5x | ~$488K |
| HVAC co., 200 service plans, 4 techs | $1.1M | $280K | 3.2x | ~$896K |
| Plumbing + HVAC combo, commercial accounts | $2.2M | $420K | 3.8x | ~$1.6M |
| HVAC with 500+ maintenance plans, PE target | $3.5M | $680K | 5.0x | ~$3.4M |
If you're planning to sell in the next 2–5 years, these moves will directly increase your multiple:
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Get My ValuationMultiple ranges in this guide reflect these datasets and industry benchmark surveys as synthesized by the ValueAI Pro valuation engine. Every generated report discloses its full methodology, formulas, and adjustments in an appendix.