TIVP017:COMFORT SYSTEMS (FIX): BLUE-COLLAR COMPOUNDER

SHAWN O’MALLEY AND DANIEL MAHNCKE

27 April 2025

Shawn O’Malley and Daniel Mahnke break down Comfort Systems (ticker: FIX), a specialty contracting company providing installation and maintenance services for the electrical, HVAC, and plumbing needs of schools, hospitals, apartment buildings, restaurants, data centers, manufacturing facilities, and a range of other customers. Comfort Systems is something of a serial acquirer, snapping up regional contracting companies at attractive prices and plugging them into a broader holding company structure, where management at the top can handle capital allocation across each of the subsidiaries.

In this episode, you’ll learn how Comfort Systems has scaled across the country and diversified its operations, how the business has used the serial acquirer playbook to compound its intrinsic value for shareholders, why the company is benefiting from major tailwinds related to AI and manufacturing onshoring in the U.S., plus so much more!

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IN THIS EPISODE, YOU’LL LEARN:

  • Why Comfort Systems has benefited from a manufacturing boom in the U.S.
  • How Comfort Systems is tied to the AI boom
  • What the company looks for in acquisition targets
  • How Comfort Systems increases its intrinsic value by supporting its subsidiary contracting businesses
  • Why mechanical contracting is such a localized business
  • Whether Comfort Systems can continue to compound returns going forward
  • How to calculate returns on incremental invested capital and why it matters for shareholders
  • What is Comfort Systems’ intrinsic value per share
  • Whether Shawn & Daniel add FIX to The Intrinsic Value Portfolio
  • And much, much more!

TRANSCRIPT

Disclaimer: The transcript that follows has been generated using artificial intelligence. We strive to be as accurate as possible, but minor errors and slightly off timestamps may be present due to platform differences.

[00:00:00] Shawn O’Malley: Company CEO, Brian Lane has said there’s a long runway to continue making attractive acquisitions. One that extends well beyond his lifetime and his work. Many of the businesses they acquire are run by founders who have maybe recently turned 60 and are thinking about retirement. In the old days, their kids might have taken things over, but that’s increasingly less common and has created an opportunity for companies like comfort systems to come in and enable people to sell the business they’ve been building over a lifetime to a trusted partner with a good reputation who they know won’t run in their life’s work into the ground.

[00:00:41] Daniel Mahnke: They say boring businesses are the best investments, and in many cases that is true. Warren Buffett has consistently beat the market averages by doing just this, buying wonderfully boring, yet profitable businesses at fair prices. Either by purchasing shares in the stock market, or by acquiring entire businesses as operating subsidiaries like Berkshire Hathaway, Shawn’s company, pitch today.

[00:01:08] Daniel Mahnke: Comfort Systems has also used a holding company structure to allocate capital toward attractive businesses, specifically in the niche area of mechanical contracting. This primarily includes electrical, plumbing, and HVAC installation and maintenance services and comfort systems has turned itself into a nationwide company for making over 40 acquisitions in the last two decades.

[00:01:34] Daniel Mahnke: Enough that you might even call it a serial acquirer. I don’t wanna steal your thunder though, Shawn. I’m just going up what you’ve already told me about the company. You can probably explain more precisely what listeners will find most interesting about this company. Alright, now it’s your turn. Shawn, tell us about this wonderfully boring compounder.

[00:01:55] Shawn O’Malley: Hey, Daniel. Yeah, I’m really excited to go through Comfort Systems today. I’ve gotten a lot out of studying the company, so I’m sure listeners will too, to get right into it. Comfort systems primarily compounds its intrinsic value by acquiring small regional contracting businesses that fulfill the unique needs of customers.

[00:02:14] Shawn O’Malley: That can range from hospitals, schools, apartment buildings, restaurants, data centers, and manufacturing facilities among others. And the services they provide can be very specialized. For example, the company plays a critical role in ensuring that data center racks using cloud computing and AI don’t overheat.

[00:02:33] Shawn O’Malley: Or that temperatures and research labs are stable enough or the very sensitive chemical compounds that might be being used there, or that college dormitories with thousands of students have the proper plumbing infrastructure in place. And because of these specialized but also essential services, comfort systems has done an excellent job compounding its intrinsic value at about 20% a year over the last two decades.

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