Private equity firms acquired more than 600 HVAC companies between 2018 and 2025. For the CPAs, M&A advisors, and business brokers serving HVAC owners, that wave creates both a responsibility and an opportunity. The clients who get 5x EBITDA are not meaningfully different from the clients who get 3.5x — the difference is almost always preparation and process. This guide covers the specific areas where advisors add the most value in an HVAC PE sale, the common gaps they find in client financials, and how to use tools like OffRamp to set realistic expectations before the first buyer call.
Why HVAC PE Deals Are Different from a Standard Business Sale
Three differences worth flagging for advisors:
EBITDA is the only currency.
PE buyers exclusively underwrite on EBITDA, not SDE or seller's benefit. If your client's books are set up for tax minimization (officer compensation inflated, personal expenses run through), you have work to do before any buyer conversation. Add-backs are real, but they require documentation — “trust me” doesn't survive QoE.
Multiples vary more than clients think.
The difference between a 4x and a 6x deal on $1.5M EBITDA is $3M in proceeds. That delta isn't random — it's driven by 6 specific factors PE evaluates in every deal. Advisors who understand those factors can direct client improvement efforts toward the highest-ROI activities in the 12–18 months before a sale.
The competitive process matters enormously.
A single-buyer process (accepting the first LOI) routinely underprices HVAC businesses by 15–25% versus a properly run competitive process with 4–6 buyers. Advisors running a CIM-based process — even informally — capture meaningfully more value for clients.
The 6 Value Drivers PE Evaluates (And What Advisors Should Audit)
Advisors who walk a client through this audit 12–18 months before a sale can address the top 2–3 gaps. That's typically worth 0.5x–1.5x on the final multiple.
| Factor | What PE Wants | Common Gap |
|---|---|---|
| Recurring revenue | 50%+ maintenance agreements | Most clients are 20–30% |
| Owner independence | GM or ops manager in place | Owner = dispatcher, salesperson, and technician |
| Clean financials | Audited or reviewed statements, 3 years | Tax returns with personal expenses mixed in |
| Software/dispatch | ServiceTitan, Housecall Pro, or equivalent | Paper dispatch, QuickBooks only |
| Customer concentration | No single customer >10% of revenue | Commercial clients at 30–40% |
| Growth trajectory | 10%+ revenue growth, 3-year CAGR | Flat or seasonal volatility unexplained |
Quality of Earnings — What PE Will Find (And What to Fix First)
PE sponsors always run a QoE (Quality of Earnings) analysis — typically through their own accounting team or a 3rd-party firm. Common adjustments in HVAC QoE reviews:
Owner compensation normalization
Replace above-market owner salary with a market-rate GM salary (typically $120K–$160K). This increases reported EBITDA — but only if it's documented and defensible.
Personal expenses
Vehicles, insurance, travel, meals. Every dollar claimed as add-back needs a business-purpose explanation. PE buys the explanation the same way an IRS auditor does.
Revenue recognition
Maintenance agreement revenue — is it recognized ratably or as received? PE prefers ratable recognition; lump-sum treatment creates restatement risk.
One-time items
A $200K insurance payout for a fire, a non-recurring subcontract, an employee settlement. Legitimate add-backs — but each needs a one-paragraph narrative in the CIM.
Working capital peg
This is where deals fall apart at closing. PE pegs working capital at the trailing 3-month average. Clients who accelerate collections before close to "improve" the balance sheet often get caught in a post-close adjustment. Advise against it.
Pro tip: Run a mock QoE before engaging buyers. The surprises PE finds in diligence almost always could have been found — and addressed — 6 months earlier.
How to Set Valuation Expectations Before the First Buyer Call
The most common mistake advisors make in HVAC PE deals: letting clients walk into a buyer meeting with no anchor on valuation. A buyer who senses an unsophisticated seller will run a price discovery process, not a competitive one.
Use a structured pre-sale valuation to anchor expectations. OffRamp's HVAC valuation calculator (free) gives clients a range based on their actual EBITDA, recurring revenue mix, and PE readiness factors. It's not a substitute for a formal valuation, but it's a useful calibration tool that takes 5 minutes — and it puts a defensible number in the conversation before buyers do.
Set a Baseline Before the First Buyer Call
OffRamp's free HVAC valuation calculator. Takes 5 minutes — gives your client a defensible range.
For the current EBITDA multiple context to share with clients, see the HVAC EBITDA multiple reference table (2025).
Running the Process — Advisor Checklist Before Engaging Buyers
Clients who enter a PE process with this package ready move faster, encounter fewer surprises in diligence, and negotiate from a stronger position.
Pre-Engagement Checklist
- 3 years of normalized P&Ls (with add-back schedule)
- EBITDA bridge from tax returns to adjusted EBITDA
- Owner compensation analysis (replacement cost documented)
- Maintenance agreement revenue schedule (customer count, ARR, renewal rate)
- Customer concentration analysis (top 10 by revenue %)
- Org chart with tenure for all non-owner managers
- Software stack summary (dispatch, CRM, accounting)
- One-paragraph narrative for each major add-back
- Preliminary valuation range (use OffRamp or a broker's CMA)
When to Refer Clients to a Specialist
M&A advisors and CPAs who don't specialize in HVAC deals should consider referring to a sector-focused intermediary when: (a) EBITDA exceeds $2M (platform deal territory — requires a full sell-side process), (b) there are multiple shareholders with divergent expectations, or (c) the client has already received an unsolicited LOI.
A specialist intermediary earns 3–5% on HVAC deals in this size range. The multiple uplift from running a competitive process versus accepting the first LOI typically more than covers the fee — often by 3x or more.
Refer to a sector-focused sell-side advisor
Platform deal territory. A full competitive auction with a prepared CIM typically captures 15–25% more than a single-buyer process.
Align expectations before engaging buyers
Divergent shareholder expectations are the single most common reason deals fall apart post-LOI. Address it before the process starts.
Run a competitive process before responding
An LOI from a PE firm is an opening bid, not a final offer. Responding without running a process leaves significant value on the table.
Conclusion
The HVAC PE wave isn't slowing down. For advisors whose clients own HVAC businesses, the question isn't whether a sale will happen — it's whether the client will be ready when it does. The difference between a client who extracts full value and one who leaves money on the table almost always comes down to preparation time, financial quality, and process. Use OffRamp's free calculator to set baseline expectations, then work backward from the target exit.
OffRamp is a free valuation tool for HVAC business owners. We don't sell your information, represent buyers, or work on commission. The calculator and reports are educational tools — always consult a licensed M&A advisor before entering a sale process.