What Is My Service Business Worth? A Plain-English Guide to Valuation

Most owners overestimate or underestimate their business by a wide margin. Here is how buyers actually think about value, without the jargon.

If you own an HVAC company, a home care agency, a plumbing or roofing business, there is a number in your head right now for what it's worth. For most owners, that number is either a guess based on annual revenue, a figure a competitor once mentioned, or simply what they hope to retire on. None of those are how a real buyer values a business. The good news: the actual method is simpler than it sounds, and once you understand it, you can start moving the number on purpose.

Value is built on profit, not revenue

The single most common mistake is anchoring on revenue. A business doing $4 million in revenue with thin margins can be worth less than one doing $2 million with strong, durable profit. Buyers are not buying your top line. They are buying the cash the business throws off after it pays for everything it needs to keep running.

That cash figure usually gets expressed as one of two numbers: SDE (Seller's Discretionary Earnings) for smaller, owner-operated businesses, or EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) for larger ones. Both are attempts to answer the same question: how much money does this business actually generate for an owner in a normal year?

The two-part formula every buyer uses

Almost every private service business is valued the same way:

Adjusted Earnings × Multiple = Enterprise Value

Adjusted earnings is your profit after "adding back" expenses that wouldn't carry over to a new owner, an above-market salary you pay yourself, a personal vehicle on the books, one-time legal costs, and so on. This is called normalizing or recasting the financials, and it is where a surprising amount of value is found or lost.

The multiple is how many years of those earnings a buyer is willing to pay for, up front. A multiple of 4x means they'll pay four times your adjusted annual earnings. Why does one business earn a 4x and another a 7x? That's the whole game, and it comes down to risk and durability, which we cover in our guide on EBITDA multiples.

A simple example

Say your company shows $300,000 in net profit. You also pay yourself $120,000 more than a hired manager would cost, run $20,000 of personal expenses through the business, and had a one-time $15,000 legal bill last year. Your adjusted earnings are closer to $455,000. At a 4.5x multiple, that's roughly $2.05 million in enterprise value, versus the $1.35 million you'd have estimated from the raw $300,000. Same business. The difference is simply understanding how earnings are normalized.

What this number is, and isn't

• It is a starting point for negotiation, not a guarantee. Buyers adjust for their own view of risk.
• It is an estimate, not a certified appraisal. A formal valuation requires a professional with access to your full financials.
• It changes over time. The same business can be worth meaningfully more in twelve months with a few deliberate changes.

Why knowing your number early matters

The owners who get the best outcomes are almost never the ones who waited until a buyer knocked. They knew their number years in advance, understood what was dragging it down, and fixed those things on their own timeline. The owners who get squeezed are the ones learning all of this for the first time while sitting across the table from a buyer who has done a hundred deals.

You don't need to be ready to sell to benefit from knowing where you stand. Most owners who run an Exit Lab valuation are simply curious, and walk away with a clearer plan for the next few years.