HVAC Company vs Plumbing Company: Which Business Should You Buy?

How Do HVAC Companies and Plumbing Companies Compare?

These are two of the most defensible trade service businesses you can buy. Both are recession-resistant, geographically sticky, and founder-heavy, which means deal flow is real and seller motivation is genuine. The numbers below are based on Q1 2026 national market data.

Both businesses sit below the SBA sweet spot of 3x to 5x EBITDA at the median, which is a good thing. HVAC at 2.9x is actually slightly below 3x, making it attractive on price. Plumbing at 3.2x is solidly inside the sweet spot. The real differentiator is cash flow: plumbing generates roughly $26,000 more annually at the median, which flows directly into debt coverage.

What Are the Key Operational Differences?

HVAC is a seasonal business in most markets. Demand spikes in summer for cooling and winter for heating. That seasonality creates cash flow lumps that lenders notice and that you will manage as an operator. Staffing is your biggest lever: a good HVAC technician is hard to hire and harder to keep, with certified techs commanding $65,000 to $95,000+ annually in competitive markets.

Plumbing runs more evenly throughout the year. Emergency calls, commercial maintenance contracts, and new construction tie-ins create a steadier revenue base. There is less weather dependency, and the recurring service component, water heaters, drain maintenance, fixture replacement, is easier to systematize.

Licensing requirements are heavy in both industries, but the structure differs. HVAC requires EPA 608 certification for refrigerant handling, plus state-level contractor licenses that vary widely. Plumbing licenses are tiered: apprentice, journeyman, master plumber. In most states, the business must operate under a licensed master plumber, which creates key-person risk if the owner holds that license.

Equipment costs are material in HVAC. Service vans with manifold gauges, leak detectors, and recovery machines run $80,000 to $120,000 per truck fully equipped. Plumbing trucks are comparably expensive but the specialty equipment (hydro-jetting rigs, pipe inspection cameras) is often jobsite-specific and can be rented rather than owned.

Both businesses are highly dependent on the owner's relationships and reputation for their first five years. When you acquire either, retention of key technicians and the existing customer base is the primary operational risk.

Which Business Has Better SBA Financing Terms?

Both businesses support clean SBA 7(a) structures at the median price point. The equity injection on either business is essentially identical: $79,450 for HVAC and $79,500 for plumbing. The 10% equity injection breaks down as 5% buyer cash plus a 5% seller note on full standby, meaning no payments on the seller note during the SBA loan term. Regalis Capital achieves full standby on over 90% of deals.

Here is the deal math at the median asking price for each.

HVAC Company, Median Deal

Plumbing Company, Median Deal

These are rough estimates based on market data. Actual terms depend on individual qualification and lender.

A note on SDE: broker-listed SDE is typically inflated by 15% to 50% and includes add-backs that do not always survive lender scrutiny. Model conservatively. At a 20% haircut, HVAC adjusted cash flow drops to approximately $209,000 and plumbing to $230,000. Both still cover debt service comfortably, and plumbing maintains its lead.

Which One Should You Buy?

Buy plumbing if you want the cleaner financing story. Higher SDE, better DSCR, less seasonal volatility, and a slightly lower top-end price ceiling on the market (which means fewer wildly expensive outliers distorting your search). If you have a licensed master plumber willing to stay post-close, the key-person risk dissolves and you have a very strong acquisition.

Buy HVAC if you find a deal below 2.9x, which the median already represents, and if you are in a region with strong year-round climate demand. The 2.9x average multiple means deals below 2.5x exist and they clear SBA underwriting with room to spare. HVAC also has a larger high-end market with deals up to $16.9 million, giving experienced buyers a wider strike zone.

Both businesses are better acquisitions than most service businesses available in the sub-$1 million range. The trade services sector is undervalued relative to other SMB categories precisely because most buyers want to avoid the operational complexity of a licensed trade business. That complexity is your edge.

Frequently Asked Questions

What is the minimum cash required to buy an HVAC or plumbing company with SBA financing?

At the median asking price of approximately $795,000 for either business, the buyer cash component of the equity injection is 5%, or roughly $39,725. The remaining 5% of the equity injection comes from a seller note on full standby. You should also budget for closing costs, working capital, and any lender fees, which typically add $15,000 to $30,000 to your out-of-pocket total.

How does seasonality in HVAC affect SBA underwriting?

SBA lenders look at 2 to 3 years of tax returns and will see seasonal revenue patterns clearly. HVAC businesses in the Sun Belt with year-round demand get less scrutiny than businesses in the Midwest or Northeast with sharp shoulder seasons. A 3.2x estimated DSCR at the median leaves enough cushion to absorb a slow quarter, but lenders will stress-test that number. Expect questions about off-season revenue sources.

Is key-person risk a deal-breaker for plumbing acquisitions?

It depends on whether the seller holds the master plumber license personally. If the business operates under the owner's individual license and that license cannot be transferred or temporarily maintained post-close, you may need a licensed manager in place before the deal funds. This is solvable in about 60% of cases through a transition or employment arrangement, but it adds 30 to 60 days to the deal timeline.

Are HVAC companies or plumbing companies easier to get SBA approval for?

Both are approved asset classes with no SBA eligibility issues. Plumbing has a marginal financing advantage due to its 3.5x DSCR versus HVAC at 3.2x, and lenders see plumbing cash flows as more predictable. HVAC can face additional scrutiny on working capital due to inventory, refrigerant costs, and equipment financing already on the books. Either business qualifies cleanly at the median price and cash flow numbers shown above.

Should I apply the full SDE as shown in broker listings when modeling these deals?

No. SDE figures from broker listings are typically inflated by 15% to 50% through add-backs that include personal expenses, one-time items, and owner compensation adjustments that lenders will not accept at face value. Model both businesses with at least a 20% discount to listed SDE before you run DSCR calculations. At a 20% haircut, plumbing's adjusted cash flow is approximately $230,000 and HVAC's is approximately $209,000, both still well above the 1.5x DSCR floor required for SBA approval.

Compare Your Options with Regalis Capital

If you are evaluating an HVAC or plumbing acquisition and want to know whether the deal you are looking at actually pencils under SBA 7(a) terms, Regalis Capital's deal team can run the numbers with you. Most buyers overpay or walk away from good deals because they modeled SDE wrong or structured the equity injection incorrectly. Get a direct assessment at regaliscapital.com/deal.