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Main Street Minute

Would You Buy This $500K HVAC Business?

November 11, 2025
7 min read
Graphic titled ‘$500K HVAC Business’ with a ‘Case Study’ label, placed over a background image of an HVAC technician smiling while working on an outdoor AC unit, with the Main Street Minute logo in the corner.

Welcome to The Main Street Minute, your shortcut to small business acquisitions.

👋 Huge shout-out to the new readers who joined the newsletter last week.

Today’s story: A corporate exec chases a 13-year-old HVAC business with declining sales, looking to trade boardrooms for boiler rooms.

Dive in below…

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NUMBERS

The Deal on the Table

Graphic titled ‘$500K HVAC Business’ with a ‘Case Study’ label, placed over a background image of an HVAC technician smiling while working on an outdoor AC unit, with the Main Street Minute logo in the corner.


Every week, we take one real small business deal straight from our community and put it under the microscope, right here.

We break down the numbers, the story, and the risks, so you can see exactly how real buyers and deal experts think.

This week’s target: a 13-year-old HVAC business with <$1M in revenue and ~$180K in SDE.

The seller’s story? After more than a decade in the field, he’s hanging up his wrench for a corporate gig and moving out of state.

That’s opened the door for this first-time buyer, a 25-year corporate veteran in sales and marketing, to make the leap into small business ownership.

Here’s what he’s looking at:

  • Revenue: $1.2M (2023) → trending toward $750K (2025 est.)
  • Asking price: ~$500K
  • Financing: Seller-financed

After the owner downsized from 4 techs and 2 admin staff to just 1 loyal, licensed technician, the business became far leaner and margins improved, but that, along with zero marketing spend (and no dedicated growth function), led to a decline in top-line revenue

Line chart showing revenue and SDE from 2022 to 2025 for a $500K HVAC business. Revenue peaks around $1.2M in 2023 before declining to an estimated $750K in 2025, while SDE gradually decreases from about $250K to roughly $150K.

The buyer’s thesis: With marketing muscle and operational focus, this could be a tight, high-margin turnaround play. The risk? Consistently declining sales, a single tech, and a seller moving on.

So… Is this a smart seller-financed entry point, or a first-time buyer’s trap?

Let’s dig in.

KEY IDEAS

5 Lessons Any Buyer Can Steal From This Deal

The community’s feedback touched everything from timing to deal structure to psychology. Here are 5 key takeaways:

1) The “Small = Safe” Illusion

The buyer’s deal looked “approachable.” A $500K business with seller financing and a local footprint. But as one deal coach put it:

"The biggest regret a lot of people have from their first acquisition, including mine, was buying too small."

A $180K SDE business can be great. But understand the math; after financing and taxes, that might mean $120K in actual cash flow… if nothing goes wrong. And in small deals, something always goes wrong.

Lesson: A larger company can more easily absorb a bad hire, a weak season, or a learning curve. A small one can’t do this as easily since the “surface area of shock” is smaller. Tiny deals seem safer because they cost less. But every stumble hits the bottom line more seriously.

2) Read Between the Seller’s Lines

Every sale has a subtext. When a 13-year owner trades self-employment for a corporate job, that’s worth questioning.

"Let's not forget that the owner is going back to a corporate job. That equals: I'm not making as much money as I want. It's too hard to run this business."

If an owner is leaving for security, predictability, or sanity, those are the same things you’ll be inheriting the absence of. That single insight reframed the entire deal.

3) The Trap of the Turnaround

The buyer described the deal as “encouraging.” The owners had cut staff, marketing was nonexistent, and yet revenue was “only” down around 15%. To him that looked like opportunity, but not to our deal consultants.

"No, this is a turnaround. It's also not in your zone of superpowers, and I would not be encouraging you to buy that."

Turnarounds can look seductive. But if your strengths aren’t well aligned with the problem set, it’s extremely risky.

Framework: When you’re pulling the nose up on a declining business, you need altitude, and this business just didn’t have it.

4) Licensing: The Hidden Moat

The group also dove into an issue that quietly kills many trade deals.

In HVAC, electrical, plumbing, and other skilled trades, proper licensing is a required asset. Without it, you can’t do business. In this case, an asset purchase triggered a chain reaction of questions around new license filings.

  • Who’s the qualifying individual?
  • Can they stay on as part-owner or W-2 employee?
  • How long will re-licensing take?

If those answers don’t come clearly, your timeline and your deal are at risk. That’s why experienced buyers often map the “license path” early on.

5) Don’t Jump the Gun

Many new buyers fight the same temptation: the urge to just get in the game.

You find a business that feels attainable, you get a seller on the phone, and your mind says this could work. Suddenly, the abstract goal of “ownership” feels very close.

But in small business buying, jumping the gun just 1 month in can hurt you down the road. Likewise, some early patience can pay dividends. Here’s what one deal consultant had to say:

"In my eyes, you're a great buyer. I think you've got a ton of experience, and you could bring a lot to a business. But I wouldn't take the plunge just yet. You've been searching for 4 weeks. I talk to people who are regularly searching for 6 months. Keep exploring this one if you have a real desire for it. But I'd recommend moving on. Take this as a rep, take it as a lesson, learn from it. You could find a business that is going to earn you more, be way more stable, and be way less of a headache. If this is the next season of your life, make it a season with as few headaches and as much certainty and stability as you possibly can, given how hard you've worked over the last 25 years."

Form your pattern recognition. In the world of acquisitions, “reps before results” isn’t motivational fluff. In the early months, your job isn’t necessarily to close a deal; it’s to calibrate your judgment so you know which deal to close.

INDUSTRY

What You Need to Know

The HVAC and plumbing contractor industry is massive. Roughly 107,000 companies, 1.3 million workers, and $306 billion in annual revenue. HVAC is one of the most fragmented industries in America. Tens of thousands of small operators compete for the same residential service calls, while private equity-backed rollups and national franchises consolidate from above.

Line graph illustrating annual SBA 7(a) loan amounts for HVAC and plumbing contractors from 2010 to 2025, showing steady long-term growth with a sharp rise after 2020 and a small dip in 2025.

The result is a barbell market:

  • On one side: Local owner-operators who win on reputation, referrals, and responsiveness.
  • On the other: Institutional players using aggressive marketing and acquisitions to scale across regions.

It’s a massive market. But “massive” doesn’t mean easy. It means crowded, and it faces some difficult headwinds.

  • Demand for new installs is softening
  • Competition for service calls is intensifying
  • Marketing efficiency is collapsing as contractors bid on the same keywords

The buyer’s target business was 100% residential service.

Line chart showing U.S. residential construction spending from 2015 to 2025, with cyclical seasonal fluctuations but an overall upward trend reaching around $80B by 2025.

Here, the ability to recruit, retain, and incentivize technicians will be critical.

THE BOTTOM LINE

What Happened Next?

A few days later, when asked where he stood on the deal, the buyer summed it up simply:

"On to bigger and better."

This deal forced the buyer to further define what he will and won’t buy before falling in love with the next opportunity. As one advisor put it:

“Now go back and update your Deal Box. Color it with what you liked and didn’t like, so you can discern faster next time.”

The Deal Box is the buyer’s operating truth that defines 3 things:

  • Their must-haves: your criteria for fit (industry, size, cash flow)
  • Their nice-to-haves: your upside levers
  • Their can’t-stands: your non-negotiables, red flags you walk from every time

The best buyers iterate their Deal Box constantly. Every review, every near-miss, every red flag sharpens it.

“One of the things I really press our new members to do is get a deal review done in their first 30 days. Huge congrats that you just did that. Even if this isn’t the deal that you go forward with, you’ve learned a lot, and it’s going to make the next deal that you look at easier to evaluate. This is experiential learning. A lot of new folks are hesitant to do what you just did.”

Want your deals reviewed by hundreds of smart business builders and buyers?

Get access to our live expert calls (and so much more) when you join our Contrarian Community.

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See you on Main Street

The information contained here is educational, may not be typical, and does not guarantee returns. Background, education, effort, and application will affect your experience and the profitability of any business. Individual results may vary.

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