Selling an HVAC business is a complex, multi-phase process with dozens of moving parts. Missing any one of them can delay your close, reduce your price, or kill a deal entirely. This master checklist gives you a phase-by-phase view of everything you need to do — and when to do it.
Phase 1: Preparation Checklist (12–24 Months Before Sale)
- ☐ Separate all personal expenses from business P&L
- ☐ Move to accrual-based accounting (if not already)
- ☐ Normalize owner compensation to market rate ($80–130K salary)
- ☐ Document all add-backs with supporting evidence
- ☐ Reconcile 3 years of tax returns to P&Ls (no unexplained gaps)
- ☐ Clean up balance sheet — resolve old A/R, document fleet
- ☐ Hire or promote a service manager who can run operations without you
- ☐ Implement flat-rate pricing (documented, not in your head)
- ☐ Deploy and train on dispatch/scheduling software (ServiceTitan, Housecall Pro, etc.)
- ☐ Document hiring, onboarding, and training processes
- ☐ Grow maintenance agreement base (target: 25%+ of revenue recurring)
- ☐ Build Google review count to 500+ at 4.7+ star average
- ☐ Verify all licenses, permits, and certifications are current
- ☐ Review lease assignment clauses — confirm buyer can assume your lease
Phase 2: Going to Market Checklist
- ☐ Select and engage an M&A advisor or business broker with HVAC experience
- ☐ Build data room with all due diligence documents pre-organized
- ☐ Review and approve CIM (Confidential Information Memorandum) draft
- ☐ Establish NDA template — all buyers sign before seeing CIM
- ☐ Brief any key employees who need to be involved in the process
- ☐ Engage M&A tax attorney to plan deal structure and tax implications
Phase 3: LOI Through Due Diligence Checklist
| Task | When | Who |
|---|---|---|
| Review and negotiate all LOI terms (price, structure, earnout, exclusivity, non-compete) | Upon LOI receipt | You + broker + attorney |
| Sign LOI and officially enter exclusivity | After negotiation | You |
| Grant buyer access to data room | Day 1 of due diligence | Broker |
| Respond to buyer information requests promptly | Throughout DD | You + CPA |
| Stay bonus agreements for key employees | During DD | You + attorney |
| Negotiate and agree on asset allocation (for tax purposes) | End of DD | You + CPA + attorney |
Phase 4: Close Checklist
- ☐ Review and negotiate definitive purchase agreement with your M&A attorney
- ☐ Confirm financing is in place (if buyer is using SBA or bank debt)
- ☐ Obtain landlord consent for lease assignment
- ☐ Prepare employee communication for day-of-close announcement
- ☐ Confirm final working capital calculation with both parties
- ☐ Sign all closing documents (bill of sale, non-compete, transition agreement)
- ☐ Receive wire transfer — verify funds before signing anything
- ☐ Begin transition period per agreement
Also in the Lightning Path Guide Series
Own a plumbing business? See our companion guide: Plumbing Business Sale Checklist
DISCLAIMER: The information on this page is provided for general informational and educational purposes only. It does not constitute — and should not be construed as — financial advice, investment advice, legal advice, tax advice, or any other form of professional advice. Nothing on this site creates a professional advisory relationship between you and Lightning Path Partners. Business valuations, transaction structures, and market conditions discussed herein are general in nature and may not apply to your specific situation. Always consult a qualified financial advisor, M&A attorney, business broker, or CPA before making any business or financial decisions. Full Terms of Use →
The Best Deal Terms Start With a Stronger Business.
Leverage in a sale comes from one place: real growth and strong numbers. Tim takes a minority equity stake in home service businesses and brings Hook Agency's marketing machine — plus serious personal hustle — to build that leverage before you ever sit across from a buyer.
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