The Valuation Methods Buyers Actually Use
There is no single correct way to value a trade business. Buyers blend methods depending on your size, profitability, and deal structure. Here are the five that come up most often in trade business sales:
Seller's Discretionary Earnings (SDE)
The go-to method for trade businesses under $2M revenue. SDE captures what the business actually puts in an owner's pocket — net profit plus owner salary plus legitimate add-backs run through the books.
EBITDA Multiple
Used when your business has real management in place — you're not the lead tech, dispatcher, and bookkeeper rolled into one. EBITDA strips out financing and accounting decisions to show operating profitability.
Revenue Multiple
The fastest but least accurate method. Revenue multiples don't account for margin, so 0.5× revenue on a 10% margin business is very different from 0.5× on a 25% margin business. Use as a sanity check only.
Asset-Based Valuation
The fair market value of everything the business owns: trucks, tools, inventory, equipment, optional real estate. The floor of any deal — no rational buyer pays less than liquidation value of what they're taking over.
Comparable Transactions
What similar trade businesses actually sold for in the last 6–24 months — region, revenue tier, license type, and structure. The most defensible number in any negotiation, and the hardest to access without specialist data. TradeReins uses closed-deal data across trades to inform its valuations.
Cross-Trade Multiples — What HVAC, Plumbing, Electrical, Roofing Actually Trade At
Generic small-business multiples are useless for trade businesses. The trades have their own benchmarks, shaped by recurring contract revenue, equipment intensity, license-transferability, and technician key-person risk. Here is the cross-trade reference table — ranges that map closely to the trade-specific guides elsewhere on this site:
| Trade | Typical Rev Range | SDE Multiple | EBITDA Multiple | Revenue Multiple | Typical Deal Size |
|---|---|---|---|---|---|
| HVAC (mid-market) | $500K–$2M | 2.0–3.5× | 3.0–4.5× | 0.4–0.7× | $500K–$2M |
| HVAC (large) | $2M+ | — | 4.0–6.0× | 0.6–1.0× | $2M+ |
| Plumbing (mid-market) | $500K–$2M | 2.0–3.0× | 3.0–4.0× | 0.4–0.7× | $500K–$2M |
| Electrical (mid-market) | $500K–$2M | 2.0–3.0× | 3.0–4.5× | 0.3–0.6× | $500K–$2M |
| Roofing (service-heavy) | $500K–$2M | 1.8–2.8× | 2.5–3.5× | 0.3–0.6× | $500K–$2M |
These are market ranges, not guarantees. Where you land within a band depends on the factors below.
What Pushes Your Multiple Up or Down
Two trade businesses with identical SDE can sell for very different prices. Here is what determines which end of the range you land on:
▲ Value Boosters
- Recurring maintenance contracts (PM plans, service agreements) — adds 0.25–0.5× to the multiple
- Commercial mix >40% of revenue — more stable than residential
- License in the business entity — transferable on close, not owner-bound
- Modern fleet — trucks under 5 years old, well-maintained
- Owner can step back — operations run without the owner in the truck
- Diversified customer base — no single customer >15% of revenue
- Certified technicians (NATE, EPA 608, manufacturer)
- Dispatch software, CRM, and documented SOPs in place
- Strong review footprint (4.7+ across Google/Yelp)
- Backlog of contracted work (12+ months visibility)
▼ Value Reducers
- Owner dependency >30% — owner is the lead tech, estimator, and customer relationship
- Severe seasonal concentration (80%+ of revenue in 3 months)
- Single mix dependency (installation only — no recurring service book)
- Customer concentration — top customer >30% of revenue
- Fleet older than 8 years with deferred maintenance
- Net margin under 15%
- Messy books — personal expenses mixed with business
- Owner-bound license — no transfer path without the owner's individual certification
- Pending legal or compliance issues
- Key employees likely to leave after sale
The Asset Floor — Why Fleet FMV Matters (Not Purchase Price)
For service trades the asset floor is the missing layer most owners get wrong. A buyer evaluates the trucks, tools, and inventory they will receive at close — not what you paid for them years ago. The asset floor is the number below which a deal cannot rationally close, because at that point the buyer is better off buying the assets at auction than buying the business.
The cleanest way to think about asset value: it is the floor for any trade business sale, and it comes up most often when earnings are thin or when the owner has under-invested in the operation. For a healthy trade business with strong SDE, the asset floor barely matters — but it always sits underneath the multiple-based valuation as the absolute minimum.
The single most common mistake: using purchase price instead of fair market value. The HVAC guide's "Mistake 1: Using Your Truck Purchase Price" framing applies across every trade — NADA guides and recent auction comps are the right source.
| Asset Class | Common Mistake | Correct Treatment |
|---|---|---|
| Fleet (service trucks, vans) | Using depreciated purchase price from the books | Use NADA or recent auction comps for each vehicle at current mileage and condition |
| Equipment & Tools | Including items no longer in service or fully depreciated | FMV of equipment still actively in use — sheet-metal brake, recovery machine, diagnostic tools, specialty jigs |
| Inventory | Counting parts at full retail as if new | Inventory at liquidation-friendly value — typically 50–70% of retail for service-trades parts |
Worked Example — A Real-Shape Phoenix-Metro HVAC Shop
The $1M–$3M lands for the cross-trade mid-market range. Here is how that bracket gets built, line by line, for a representative Phoenix-metro HVAC operation at $2M revenue — the kind of shop that drives past your house on a 110-degree afternoon. Numbers are illustrative for a typical owner-operated mid-market HVAC business; replace with your own.
A buyer walking into this shop with the cross-trade baseline (2.0–3.5× SDE = $840K–$1.47M) would apply a +0.5× premium for the strong recurring contract book, then a −0.3× discount for the owner still being on the tools. That lands the bracket at roughly $1.05M–$1.3M after both adjustments. The asset floor ($180K) is essentially irrelevant here — earnings cover it many times over.
Your shop's specific numbers will shift the bracket. Swap in your own revenue, SDE, contract share, fleet FMV, and owner involvement, and the same method lands on your number. Brackets at the bottom of trade-detail pages ($1M–$3M for a mid-market HVAC shop) come from applying these adjustments to the cross-trade mid-market baseline — actual close price still depends on buyer fit, license-transfer details, and structure (seller financing, earnout, trial period).
Why Owner-Dependent Shops Trade at a Discount
Owner-dependent trade businesses — where the owner is simultaneously the lead estimator, top tech, dispatcher on busy days, and the customer relationship that holds the book together — trade at a real discount. Buyers apply it because the Day-1 walk-out risk is real: if the owner falls ill, or simply decides three weeks after close that they do not want to ride along on the trial period anymore, the business contracts fast. Key-person risk is not a theoretical concern under these conditions — it is the central pricing question.
The Arizona example above shows the discount in plain numbers. With $640K in recurring contracts (32% of revenue) and an owner still on the tools 30% of the week, the baseline 2.0–3.5× range would ordinarily push toward the upper end. The −0.3× discount the buyer applies for owner involvement brings it back toward the middle. The mitigation is straightforward but not free: 18–24 months before sale, get out of the truck, promote a lead tech, write SOPs, and start transferring customer relationships from "the owner" to "the company." Each step reduces the discount.
Valuation Questions, Answered Plainly
Click any question to expand. Answers are plain-language — including the cases where the actual multiple depends on specifics, where asset value trumps earnings, and where the "right" answer is to hire a CPA before you argue with a buyer.
See What Your Trade Business Is Actually Worth
Submit a short, confidential intake and TradeReins will run the same method against your numbers — SDE, asset floor, owner-dependency adjustment, and the buyer-side license factor — and return a trade-specific valuation you can act on. Free, confidential, no public listing.