Most HVAC owners get the NDA as an afterthought — a PDF the PE firm sends before they'll share anything about themselves, with instructions to sign and return. The framing is backwards. You're the one sharing confidential information: your customer list, your EBITDA breakdown, your employee names, your vendor terms. The NDA protects you. Understanding what it covers — and what it doesn't — is the first real negotiation in any deal process.
Before you sign anything, you should have been prepared for the first PE meeting. The NDA typically comes right before or after that first conversation — and before you'll share your Confidential Information Memorandum.
What an NDA Actually Covers (and Doesn't)
The NDA is a legal contract between you and the buyer defining what information must be kept confidential, for how long, and by whom. But not everything is covered — and the gaps matter.
What it covers
Trade secrets, financial data, customer relationships, employee information, and operational systems. Information that would damage your negotiating position or business relationships if shared publicly or with competitors.
What it typically doesn't cover
Information already in the public domain, information the buyer can obtain independently, and — critically — any obligation for the buyer to actually buy your business. Signing an NDA creates confidentiality obligations. It creates zero purchase obligation.
The often-missed gap
Most NDAs don't cover the buyer's internal communications. The analyst can share your EBITDA figures with every partner in the firm, present them to the LP advisory board, and discuss them at a portfolio company meeting — all within the NDA. Your numbers are "confidential" to outsiders, not to everyone inside the buying organization.
The Four NDA Terms That Actually Matter
Most NDAs look similar on the surface. The differences that move the needle are buried in four specific provisions. Here's what to read carefully in each.
Definition of Confidential Information
The scope of what's actually protected. Broad definitions protect you; narrow ones leave gaps.
Watch for
Overly narrow definitions that exclude "general business knowledge" or "information that could be reconstructed." The broader the definition, the more you're protected.
Duration
How long the confidentiality obligation lasts. Most NDAs run 2–3 years from the date of signing.
Watch for
Perpetual NDAs (unusual and worth questioning) or NDAs shorter than 12 months — your deal might take longer than that to close, leaving you unprotected.
Permitted Disclosures
The carve-outs that allow the buyer to share your information with third parties. Every NDA has them for lawyers, accountants, and lenders.
Watch for
Carve-outs that include "affiliates" without defining them — this can be a back door for disclosure to portfolio companies that compete with you.
No-Hire / No-Solicit Clauses
Some NDAs include restrictions on recruiting your employees during and after the process. This protects your team from being cherry-picked during diligence.
Watch for
Asymmetric clauses that restrict you from hiring their people but don't restrict them from hiring yours. This should be mutual.
The Standstill Trap
Some NDAs include a standstill clause: a period during which you agree not to solicit other buyers while discussions are ongoing. This sounds reasonable — you're in early talks, you want to focus. But a standstill in an NDA is not the same as an exclusivity clause in an LOI. It's legally murkier, often shorter, and can be used to delay a competitive process before you've received any indication of value.
If you see a standstill in an NDA before a first meeting, ask why it's there and what they're willing to give in exchange. A narrow IOI with a valuation range is a reasonable ask.
Before you enter a sale process, know your number.
HVAC owners who understand their valuation before engaging buyers negotiate better NDAs, better LOIs, and better final prices.
Get Your Free Valuation →Mutual vs. One-Way NDAs
Most PE-originated NDAs are one-way: you can't share their information, but they've shared nothing material to protect. That asymmetry is real — but it's also negotiable.
Push for a mutual NDA. PE firms are used to this ask; it's not adversarial. A mutual NDA creates a more balanced starting posture and signals that you're approaching the process as an informed seller, not someone who just needs to get to the next meeting.
Your M&A advisor will typically have a standard mutual NDA template they use as a starting point. The mutual language doesn't cost you anything — and it resets the dynamic from “seller complying with buyer's paperwork” to “two parties entering a structured process.” That shift in posture matters more than people think.
What to Do Before You Sign
Three steps that take less than an hour and protect everything that follows.
Have your M&A advisor or attorney review it before signing
Even a 30-minute review can catch the permitted-disclosure and standstill issues above. This is not optional if there's a standstill clause or broad affiliate carve-outs.
Mark up anything asymmetric
PE firms expect sellers with advisors to redline. First NDA redlines are a normal part of the process — not a deal-breaker. A clean markup signals sophistication, not hostility.
Keep a signed copy with the firm's name and date
You may have multiple NDAs in a competitive process and will need to track who has what. A folder with each firm's signed NDA is basic deal hygiene.
Frequently Asked Questions
Can I share my financials before signing an NDA?
Technically yes, but don't. Until you have a signed NDA in place, any financial data you share is unprotected — the buyer is under no legal obligation to keep it confidential. A reputable PE firm will send an NDA before asking for detailed financials.
What happens if a buyer violates the NDA?
You can pursue damages in court, but litigation is expensive and slow. The more practical protection is to know who you're sharing with — PE firms with institutional reputations have much more to lose from an NDA violation than an unknown buyer.
Does an NDA prevent a buyer from passing on the deal after reviewing my financials?
No. An NDA creates confidentiality obligations only. The buyer can review your business, decide not to proceed, and move on — with no obligation to explain why or return your documents (unless the NDA specifically requires document return or destruction, which some do).
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.