How Service Businesses Are Valued

By Ryan Williams March 30, 2026 9 min read

If you've ever typed "what is my business worth" into a search bar, you've seen the same generic answers: "2–4x EBITDA" or "a multiple of revenue." That's not wrong — it's just incomplete. This guide explains how buyers and M&A advisors actually think about valuation, what drives your number up or down, and why two businesses in the same industry can sell for very different multiples.


The foundation: buyers buy cash flow, not revenue

The most important thing to understand about business valuation is this: buyers are not buying your revenue. They're buying your future cash flow — and they're discounting that cash flow for the risk that it won't materialize.

A $5M HVAC company doing $400K in owner earnings is worth more than a $5M HVAC company doing $200K in owner earnings, even though both have the same top-line revenue. The earnings — and the reliability of those earnings — are what get valued.

This is why the two most common valuation metrics in small and mid-market M&A are EBITDA and SDE — both measures of cash flow, not revenue.


EBITDA vs. SDE: which one applies to your business

SDE (Seller's Discretionary Earnings)

SDE is the standard metric for businesses under approximately $2M in annual revenue, or where the owner is actively working in the business. The formula is straightforward:

SDE = Net Income + Owner's Salary + Personal Expenses Run Through Business + Non-Cash Charges (Depreciation/Amortization) + Interest + One-Time Expenses

The logic: a buyer is acquiring the right to step into the owner's role. SDE represents the total economic benefit available to that buyer — their salary plus the profit they'd retain.

Service businesses in the $500K–$2M revenue range are almost always valued on SDE. Typical multiples: 2x–3.5x SDE, depending on industry, stability, and growth profile.

EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization)

EBITDA is used for larger businesses — typically $2M+ in revenue — where the owner is not the primary operator and the business runs with a management layer in place.

EBITDA = Net Income + Interest + Taxes + Depreciation + Amortization

Buyers and M&A advisors also calculate "Adjusted EBITDA" — adding back one-time expenses, above-market owner compensation, and non-recurring items to arrive at a normalized, repeatable earnings figure.

Service businesses in the $3M–$20M revenue range typically trade at 3x–7x Adjusted EBITDA. Businesses with strong recurring revenue, management teams in place, and defensible market positions can push well above that range.

Quick rule of thumb: If the owner working in the business = SDE. If a GM or operations manager runs the business day-to-day = EBITDA. Some M&A advisors use both and take the higher number.

What determines the multiple

The multiple — whether 3x or 6x — is not random. It reflects how a buyer perceives the risk and growth profile of the business. Here are the primary factors that move multiples up or down in service businesses:

Factors that increase your multiple

Factors that decrease your multiple


Industry multiples: a reference range

Multiples vary by industry because buyers assess each sector's risk profile differently. The ranges below reflect typical market conditions for owner-operated service businesses in the $1M–$20M revenue range. Outliers exist in both directions.

Industry Typical Multiple Key Value Driver
Commercial HVAC 3.5x–5.5x EBITDA Service contract density, commercial vs. residential mix
Electrical Contractors 3x–5x EBITDA Commercial/industrial work, recurring maintenance agreements
Plumbing Contractors 3x–5x EBITDA Commercial vs. residential, recurring service component
Roofing Contractors 2.5x–4.5x EBITDA Commercial focus, geographic concentration, warranty exposure
Landscaping / Grounds Maintenance 3.5x–6x EBITDA Contract renewal rates, commercial client mix
Janitorial / Facility Services 3x–5x EBITDA Contract length, churn rate, client quality
Pest Control 4x–7x EBITDA Recurring revenue %, route density, commercial vs. residential
Fire & Life Safety 4x–6.5x EBITDA Inspection/monitoring contracts, compliance-driven demand
Managed IT / MSP 4x–8x EBITDA MRR quality, churn, client concentration
Environmental Services 3.5x–6x EBITDA Regulatory tailwinds, contract-based work, certifications
Excavation / Dirt Work 2.5x–4x EBITDA Equipment age, backlog quality, geographic reach
Commercial Cleaning / Pressure Washing 2.5x–4x EBITDA Contract renewals, route concentration

Don’t see your industry? We have detailed valuation guides for 58 industries with SDE multiples, value drivers, and FAQs.

Important context: These are ranges for businesses that are well-documented, growing, and professionally run. A business at the bottom of its industry's range is not necessarily a bad business — it may simply lack the management depth, contract mix, or financial documentation to command a premium.

The add-back conversation: what gets added to EBITDA

Owner-operated businesses routinely run personal and discretionary expenses through the P&L — a company vehicle, cell phone, health insurance, meals, travel. In a sale process, these expenses are "added back" to calculate Adjusted EBITDA, because a buyer would not incur them.

Common add-backs include:

The add-back process is where sellers and buyers often disagree. Buyers will push back on any add-back they can't verify or don't believe is truly non-recurring. This is one reason clean, well-documented financials matter — your add-backs need to be defensible.


The gap between asking price and closing price

Most service businesses are marketed at the high end of their valuation range. Due diligence often compresses the final number. Common reasons the closing price falls below the initial asking price:

The best way to protect your asking price is to resolve these issues before going to market — ideally 12–18 months in advance.

The 12-Month Exit Timeline for Service Business Owners


What to do with this information

Knowing your approximate multiple range is step one. The more useful question is: what would move you from the middle of that range to the top?

Most owners who sell at a premium multiple spend 12–24 months preparing — cleaning up financials, reducing owner dependency, locking in contracts, and building the management layer that makes the business transferable. The ones who list unprepared tend to accept lower prices or stall in due diligence.

If you want a rough sense of where your business sits today, the valuation tool on this site will give you a starting point in about three minutes.

Why Recurring Revenue Is the Single Fastest Way to Raise Your Multiple

Owner Dependency: The Hidden Tax on Your Business Valuation

Ryan Williams

Ryan Williams

Founder, bzwrth

Ryan helps owners of $1M–$50M service businesses understand what their company is worth and prepare for a successful exit. Learn more

Last updated April 2026

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