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:
Get a professional AI-powered valuation using DCF analysis, market multiples, and asset-based methods. Takes 5 minutes.
Get My Valuation