Selling an HVAC business is rarely a single number handed over in one check; the price is split across several components, and the structure that splits it often matters as much as the headline multiple itself. This is general education, not legal, tax, or financial advice; confirm any deal terms for your specific situation with your own M&A advisor, CPA, and attorney. What this guide does is explain the building blocks of a deal — and the bridge between the headline price and the cash that actually lands — so an offer reads as something you can evaluate rather than a single number you take at face value.
The reason structure deserves its own treatment is simple: two offers with the same headline multiple can deliver very different outcomes, and an offer with a higher headline can put less cash in your hands than one with a lower headline. Owners who fixate on the multiple alone get surprised at close. Owners who understand the components ask the right questions before they sign.
The four building blocks of the price
Most HVAC deals above the small owner-operator level are assembled from four components. Cash at close is the portion paid in cash on the closing date — the money that actually reaches you that day, and usually the part that matters most to a seller. An earnout is a slice of the price the buyer pays later, conditioned on the business hitting agreed performance targets after the sale — it bridges a gap between what the buyer will pay now and what the seller believes the business is worth, but it only pays if the targets are met. Rollover equity is a stake the seller keeps in the new, combined company rather than cashing out entirely — it ties part of the seller’s outcome to how the business does under the new owner, with upside if the platform grows and risk if it does not. And a seller note is, in effect, the seller financing part of the purchase, with the buyer paying that portion over time with interest. The mix of these four is the structure, and it is negotiated alongside the price, not after it.
The headline-multiple-versus-cash-at-close bridge
The single most important thing to understand about structure is that the headline multiple sets the total price, but cash at close is only the slice paid in cash on the closing day — and several things stand between the two. The price is first split across the four components above, so any portion sitting in earnout, rollover, or a seller note is not cash you receive at close. Then come the adjustments. A working-capital peg requires the business to be delivered with a normal, agreed level of working capital, and the price adjusts up or down if it is handed over with more or less — so the receivables and payables on the closing balance sheet move the final cash. Holdbacks and escrows set aside part of the proceeds for a defined period to cover post-closing claims, indemnities, or adjustments, releasing later if nothing arises. None of these touch the headline multiple, but all of them change the cash that actually reaches you and when. That is why a higher headline can mean less cash at close: a buyer can offer a stronger total number while shifting more of it into deferred or at-risk components, and an owner reading only the headline would never see the difference until close.
Why a higher multiple can mean less money up front
This is the trap structure sets for the unprepared seller. Imagine two offers: one with a strong headline multiple where much of the price sits in an earnout and a large rollover stake, and one with a lower headline that is mostly cash at close. The first looks better on paper and may pay more in total if the business performs and the combined company thrives — but it puts less cash in your hands on closing day and ties the rest to outcomes you no longer fully control. The second is less impressive as a number but delivers certainty. Neither is automatically right; the point is that you cannot compare them by headline alone. As a directional frame, advisory commentary describes a common pattern as roughly 50 to 70 percent of the price in cash at close, roughly 10 to 15 percent in an earnout, and roughly 15 to 30 percent in rollover equity — but treat those as illustrative ranges that vary widely by deal size, buyer type, and the durability of the earnings, not a quote for your deal or a promise of any particular split. The buyer type you are dealing with shapes the structure heavily, which is the subject of who buys HVAC businesses, and the earnings measure the price is built on is covered in SDE versus EBITDA.
Real-World Scenario: Two owners selling similar HVAC businesses each receive an offer in the same month. The first owner’s offer carries a higher headline multiple, with a large share of the price in rollover equity and a multi-year earnout tied to growth targets — a strong total number, but less than half landing as cash on closing day, and the rest depending on how the combined company performs. The second owner’s offer carries a lower headline multiple but is mostly cash at close, with only a modest holdback released after a year. On paper the first offer looks like the bigger win. In practice they are different products: one is a bet on the future with more upside and more risk, the other is certainty with a cleaner exit. The owner who understood the structure chose based on what they actually wanted from the sale — the one who only read the headline would have been measuring two different things with one ruler.
Where the real terms live, and who reads them
The offer letter shows the headline and the broad strokes; the purchase agreement is where the structure actually lives, line by line — the earnout formula, the working-capital peg mechanics, the holdback and escrow terms, the rollover rights, and the indemnities. That is why this is the most legal- and tax-heavy stage of a sale, and the least suited to handling alone. An M&A advisor negotiates the structure and the cash-at-close bridge; a CPA models the after-tax outcome of each option, because how the price is split changes what you keep; and an attorney drafts and reviews the agreement that governs all of it. The insurance side rides along quietly here too: the structure decides which entity is the named insured at close, an earnout period can keep the seller exposed to the business longer than expected, and rollover equity ties the seller to the new company’s risk going forward, so the general liability and contractors equipment coverage has to follow the entity that actually closes. To put the structure in the context of the whole valuation, start with what an HVAC business is worth, and to walk into a deal with a stronger hand, see how to prepare your HVAC business for sale. For the cost side of running the operation in the meantime, see what drives HVAC insurance costs, browse more owner resources as the library grows, and when you want the coverage written to the way the business actually runs before a buyer reads it in diligence, start a quote. This is general education to sharpen the conversations with your own M&A advisor, CPA, and attorney — not a substitute for their advice on your specific deal.