At 42 years old, Kirt Linington walked away from a 20-year corporate career as an executive vice president and went door knocking for roofs in Texas. He started with one partner, four installers, and a folding table in a back-room office. Six years later he sold the company in 2022 for a nine-figure valuation and moved into the private-equity rollup phase. No fancy plan. No paid leads. No software stack. Just doors, sales, attitude, and a brutal commitment to staying in his lane until he was great at it. He sat down with the School of Hard Knocks podcast and laid out the entire contractor playbook in 68 minutes — the door knocking promote-don't-sell mindset, hire-the-attitude rule, why he never bought a single Google ad, what private equity actually looks for in a contracting business, and the one principle behind every dollar of the exit. Here is the operator-grade breakdown, written for the only audience that should care: blue-collar founders who can still pick up a hammer.
Kirt Linington was born and raised in South Africa, came up without money, played rugby, got into fights, and went into mandatory military service straight out of high school. He calls it the worst time of his life and the best time of his life and the time he never wants to do again. He came to America in his twenties on a one-way ticket with $700 in his pocket and a buddy. He spent the next twenty years climbing the ranks of corporate America, eventually landing as an executive vice president at LA Fitness during a period when the company scaled from roughly 40 locations to over 800.
The pivot started with a friend. Linington had worked with a guy at LA Fitness who came from the roofing world. When that friend left LA Fitness over a new boss and went to work for another roofing company, Linington pulled him aside and said: what if I put up the money and you don't go work for the other company? The original plan wasn't to build a $100M business. It was to make an extra $10K to $20K a month on top of his corporate salary.
Then the math hit him. He realized that one Saturday of door knocking and closing a roof could pay him what he made in two months at certain points in his fitness career. So he kept his corporate job for four years and built the roofing business on nights and weekends with his wife in the passenger seat while he inspected roofs. He grew the business to roughly $62 million in revenue while still part-time at his corporate job. Then he went all-in. A few years later he sold for over $100 million via private equity, joined the rollup as the platform brand, and the parent group has now acquired eight businesses across 27 states under one consolidated national name.
What follows are the eleven operator lessons that came out of his 68-minute breakdown on the School of Hard Knocks podcast. They are blunt, unromantic, contractor-specific, and worth reading twice if you run a service business right now.
The single biggest mental block Linington pushes back on is the idea that you have to start a business in your twenties or it's already over. He started door knocking at 42. He had homeowners talking down to him while he stood on their porches in jeans and a t-shirt. He was already a successful corporate executive and he says wanting to win mattered more than his pride.
The deeper point: starting late is not a disadvantage if you have spent the prior twenty years actually learning how to operate. Linington's twenty years in corporate America taught him recruiting, training, talent development, retention, scaling locations, working through acquisitions, and managing through fragmentation. He took those exact skills and pointed them at a fragmented mom-and-pop industry full of operators who had never been forced to build a real talent pipeline. The leverage was obvious. Within a couple of years the company was beating most legacy operators in the market.
The framing that matters: when an interviewer asked him if he wished he started earlier, his answer was no, because he had too many lessons to learn first. The corporate years were not a delay. They were the runway. If you are 35, 40, or 50 right now and stuck thinking the entrepreneurship window has closed, Linington's answer is: you are looking at the wrong number. The question is not how old you are. The question is what skills you have already paid for, and whether you are willing to point them at an industry that hasn't caught up to you yet.
Linington has a phrase he repeats and it's the cleanest answer to the analysis-paralysis question we've heard from a contractor founder: you have to get in flight to get feedback to change direction. You cannot steer a parked plane. You can only steer one that's already moving.
He admits openly that there was no roofing master plan when he started. The original idea was simple: put up the capital, partner with a friend who knew the trade, and try to make a few thousand extra a month. The market told him what to do next, not a strategy doc. Roofing was fragmented. Most operators were small. He could see the gap. So he kept going.
The same pattern shows up in every operator interview Linington has done. The starting point is almost always small, almost always opportunistic, almost always nothing like the eventual exit. The only consistent ingredient is that the founder was already in motion when the bigger opportunity revealed itself. Anyone waiting for the perfect plan is reading their dashboard while still parked in the hangar.
Most new contractor founders spend the first 6-12 months building infrastructure they don't need yet. They obsess over the CRM. They spend money on a logo redesign. They build a quote calculator before they have a single closed deal. Linington's view on this is brutal: it doesn't matter how good your back end is if you have no clients and no money coming in.
In the first year of the roofing business there was no big infrastructure plan, no operations document, no systems and processes. There were four guys, doors, and sales. The sequence was: sell first, then react fast enough to operationally support what you sold. He admits some industries genuinely require infrastructure on day one. Roofing wasn't one of them. Most service businesses aren't.
What you do not want to skip on day one: cleanly tracking the deals that are coming in. Linington's later regret in the sale process was that the company's early CRM and accounting data wasn't as clean as a private-equity buyer would want. The answer isn't to over-build the back office before you have revenue. The answer is to use a real CRM (not a spreadsheet, not your phone notes) from deal one, even if you're the only person knocking. We've seen this exact failure mode kill or significantly discount contractor exits we've worked on. (More on this in our long-form on key-man risk and the SDE multiple math.)
The single best framing for door-to-door sales we've ever heard came out of this interview. Linington starts with a quote from Jeffrey Gitomer's sales bible: people aren't rejecting you, they're rejecting your offer. Step one is to stop taking it personally. Step two is to change what hat you're wearing on the porch.
Linington's frame: think about the person handing out free Red Bulls at an event. They're not selling. They have nothing to gain from the interaction directly. They're promoting. They're handing out a thing for free that the recipient might want. Now apply the same posture to a door knock. You are promoting the fact that the homeowner has roof damage and that you can help return their property to better than pre-loss condition. You're a facilitator of a process. You don't want money from them. You want them to know about something useful for their house.
He uses a brutal analogy for what happens when a contractor radiates the opposite energy. Picture a guy walking into a bar desperate to find a date for the night. He has no plan. He needs something to happen. Everyone in the bar can smell it on him from the door. He's going home alone. The desperate-sales energy is the same dynamic. A contractor who needs the close right now squeezes everything out of the one appointment in front of them, the customer hates the experience, and the deal dies on top of that.
The structural fix isn't a script. It's pipeline. If you have ten conversations queued up, you don't need any one of them to close. Your posture changes. The promote frame becomes natural because you don't need anything from this specific homeowner. They feel that, and they're more likely to actually let you on the roof.
Linington's marketing budget at LA Fitness was $500 a month per location. That's not much. It taught him to think in grassroots and B2B-relationship terms instead of in paid-acquisition terms. When he started the roofing business he applied the same playbook: zero spend on digital marketing, no paid leads, all door knocking and direct outreach.
What's interesting is how he sold this to his sales force. Other roofing companies in the market were buying leads and handing them to reps. Those reps got paid less per deal because the company had to recoup the cost of acquisition somewhere. Linington walked his team through the math directly: you can either work for those companies and make less per deal because they hand you leads, or you can stay with us, knock doors, and keep the full commission.
There's a second strategic advantage that doesn't show up on a P&L. The door knocker who finds the damage is also the appointment setter, the inspector, and the closer. A homeowner gets one human end-to-end. There's no handoff to a separate "closer" who shows up the next day and rebuilds rapport from scratch. Same-day inspections turn into same-day signed contracts. Close rate goes up. Trust transfers from the porch conversation to the contract directly.
The exception to all of this: certain markets and lead types do require digital. If you're trying to scale a high-end commercial roofing portfolio you'll need a different approach. But if you operate a residential service business with damageable assets (roofs, siding, foundation, HVAC, electrical) and you're not in the door-knocking lane at all because it sounds beneath you, Linington's view is that you're leaving the highest-margin channel in your industry on the table for somebody else to pick up.
The best lesson in the interview for any contractor running a sales team. Linington's hiring rule is one sentence: hire the attitude, teach them the rest. You can teach competency. You cannot teach character.
He tells one specific story to make it land. At his sales force's annual award ceremony in 2025, the top sales rep of the year was a quiet guy who had never knocked a door in his life before joining the company. He stood up at the awards and said: I suck at door knocking, but I don't give up. He won.
The point isn't that talent doesn't matter. The point is that natural sales talent often comes packaged with bad habits — the contrived smoothness, the canned scripts, the inability to read a room because the rep is performing instead of facilitating. The unnatural rep who works hard and stays coachable closes more deals over a 12-month window than the polished closer who hits a plateau in month four because they refuse to take input.
One of the most expensive lessons Linington tells in the interview is the time the young roofing company tried to take on a high-rise downtown Dallas condo job. They had been mostly residential. The property management company wanted them. The job was big. They convinced themselves they could handle it.
The crew had been installing roofs for a long time. The Linington team didn't know what they didn't know. They trusted the crew on the technical seam-direction question. The crew did it the wrong way. The first big rain came, water poured into the top-floor condos, every condo was saturated, and the company had to pay to rebuild all of them out of pocket. The mistake cost them several hundred thousand dollars and Linington had to float the entire bill personally.
For a contractor reading this right now, the pattern shows up in three ways. Vertical creep: a residential roofer takes a commercial job, or a commercial GC takes a residential remodel. Geographic creep: a Dallas operator opens an Austin location before Dallas is fully optimized. Service creep: a roofer adds gutters, then siding, then windows, then solar, before any one of them is profitable. Each is a version of the same mistake. The rule: be excellent at one thing before you add a second.
Linington also bashes the modern myth of "seven streams of income" hard. His view: most people preaching seven streams haven't yet been great at one. Until you have a single thing that pays you, every additional thing is a distraction. After you've made enough from your first thing that you genuinely have capital to deploy, then you can diversify, but with eyes open: real estate is not passive, and a side business is another full-time job dressed up as something else.
Linington was deliberately tight with the company's cash for years. They started in his living room. They moved to an office half the size of a podcast studio — literally just a desk and two chairs. They didn't go buy a fleet of trucks and wrap them in branded vinyl. They didn't take huge owner draws. They built the business first, ran it lean, and reinvested capital into the parts that compounded.
There's a story in the interview that drives this home. His business partner came to him at one point and said: shouldn't we be taking more out of this thing? We're making all this money. Linington didn't argue. He waited. One day he called the partner into the office and handed him a million-dollar check. Biggest check the partner had ever held. Linington's line was: see, we don't need to spend the money the minute we make it. We invest in the business and we get to share in much bigger things later than the bits of money we'd take along the way.
The structural insight: private-equity multiples on a service business compound dollars at a vastly higher rate than the dollars themselves do sitting in a checking account. An extra $500K reinvested into a new sales hire, better software, or a small bolt-on acquisition can move EBITDA enough to add $2.5M-$5M to enterprise value at exit (depending on the multiple). That same $500K spent on a Lambo is worth zero at exit and depreciates every month you own it. The math isn't complicated. The discipline to actually live it is.
Every contractor knows this story: the company sells more roofs than it can install, the schedule blows up, customers wait six weeks past their promised date, reviews crater, future leads dry up. Linington had this exact problem in the early days. The fix wasn't a software system. It was a labor relationship.
Their early subs weren't great. The good crews were already taken. They had to take whoever was available. So Linington and his partner did two things. First, they got in their trucks and drove the streets looking for crews who were already installing roofs — and recruited them on the spot. Second, they made a long-term commitment to treating crews like family: pay on time, pay fair, never short-change them, bring them water and breakfast on the job, and keep them busy 12 months a year so they don't have to chase work.
Three to five years in, the same crews who were technically subcontractors were operating like a captive labor force. They turned down work from competitors. They traveled state to state for Linington jobs. The company is currently active in 27 states and the labor flexibility is a meaningful part of why scaling didn't break the operation.
The lesson isn't sentimental. It's strategic. Labor is the single most expensive variable in a contracting business and the one most likely to derail the schedule. A founder who treats subs like a commodity gets commodity loyalty. A founder who treats them like a partner gets a moat that competitors can't easily replicate. Same way Spofford described building a leadership team smarter than the founder — you build the relationship before you need it.
Building a contracting business and selling one are two different skill sets. Most contractor founders assume that scaling a successful operation qualifies them to negotiate an exit. It does not. Linington learned this the practical way.
His sale process didn't start because he was tired or because he had a number in mind. It started at a roofing convention in Florida, when one of his suppliers introduced him to another founder over lunch — a guy who had just sold his company to private equity. Linington didn't know much about PE. He started learning. He started asking questions. The deeper he got, the more he saw what he calls "accelerated income" — you build a business and a multiple of EBITDA shows up at close. He started reverse-engineering what private-equity buyers actually want.
He hired a guy who had already successfully sold a big roofing business as a coach. They role-played the management presentations over and over. They analyzed the business through a buyer's lens. They tightened up everything that looked sloppy. The first formal offer that came in was lower than nine figures. Linington's leadership team was excited. The money was real. They were ready to take it.
He turned it down. He spent another seven months tightening the business based on what he had learned in the previous interview cycles. He went back to market and got a couple of offers. He took the right one for north of nine figures.
Here's the unromantic checklist Linington gave for what moves a multiple in a contracting business:
Linington also adds one piece of advice for anyone still building: do all of this from day one. Don't wait until you decide to sell to clean up the data room. The business he sold was years old by the time he formally went to market, and he had to scrub multiple legacy systems to recover documents that should have been in one place from the start. That cleanup work alone slowed his sale process by months.
Linington's frame: PE is a marriage. Yesterday you called every shot. Today you don't. Every major capital decision goes to a board. Every strategic pivot needs alignment with the fund. Most founders aren't ready for that shift. The trade-off for the equity check is operational autonomy. Linington signed up for it because he wanted to become the first true national roofing brand in America, and the PE backing is what made that goal achievable. The parent group has now acquired eight businesses across 27 states and is consolidating them all under one national name. That's the post-exit endgame for a platform deal — you keep building, with somebody else's capital, on a much bigger map.
The most quotable line of the entire interview, and the one we've been thinking about since. Linington's answer to "what's the best non-business advice you'd give a young entrepreneur":
Translation: if you're shitty at home, you'll be shitty at work. If your marriage is broken, the business will start showing it. If you can't manage your own health, your team will eventually mirror your dysfunction. The talented people on your team can sniff out a leader who is leading two different lives, and what eventually bleeds through is the truth of who you are when no one's watching.
Linington uses the Abraham Lincoln cherry-tree analogy: if Lincoln had five hours to cut down a tree, he'd spend the first four sharpening the axe. The hours you spend on your physical fitness, your moral code, your marriage, your fatherhood — those are the hours sharpening the axe for the moments you have to perform as a leader. Founders who skip the sharpening because they think it's "soft" eventually find that the axe is dull when they need it most.
He also runs his coaching practice on this principle. In his office he has a sofa and two chairs and he says he spends more time coaching the personal lives of his successful people than coaching the business problems. The thinking: if their personal lives are sharp, the business follows. If their personal lives are a mess, no amount of operational coaching is going to overcome it. The whole organization rises and falls with the inner state of its leaders.
Asked for the one principle he'd leave for the next generation, Linington went two directions. The first: eliminate distractions like a racehorse with blinders. Today's founders are exposed to so much shiny-object content that getting laser-focused is itself a competitive advantage. The second: go do the shitty stuff nobody else wants to do. Door knocking. Plumbing. Septic. Demolition. There are massive opportunities sitting in unsexy lanes because nobody wants to enter them. That's the lane.
And the corollary: screw following your passion. Linington's view is that passion isn't innate. It's manufactured by exposure. You weren't born loving cars — you saw a race car on TV as a kid, your dad bought you a toy, you smiled, you got more exposure, and you grew into it. That means you can manufacture passion for anything by deliberately exposing yourself to it long enough. So pick the unsexy work that pays, get good at it, and let the passion follow.
If you run a roofing, framing, electrical, plumbing, HVAC, foundation, landscaping, masonry, painting, or general-contracting operation and you read all of this and felt called out, that's the point. Linington's playbook is a brutally clear mirror for blue-collar founders. Run the audit:
This is exactly the audit work we do for clients at Style Marking. We build the custom CRM, automation, dispatch dashboards, and operations software that move your business out of your head and into systems — client history any team member can see, automated lead intake and quoting, owner-free fulfillment dashboards, documented SOPs with training videos, automated review and follow-up sequences, and per-job profitability dashboards. The same architecture Linington described as the difference between a roofing company that exited at nine figures and a roofing company that stayed at $5M revenue forever because the founder was the bottleneck.
Kirt Linington is a South African-born entrepreneur who spent 20 years in corporate America before leaving an executive vice president role at LA Fitness to start a Texas-based residential and commercial roofing company. He started the business with one partner and four installers, scaled it to over $62M in revenue while still working his corporate job part-time, then went all-in and sold the company in 2022 for a nine-figure valuation through a private-equity transaction.
Linington's view: no. He left his EVP role at 42 and built a $100M+ exit in roughly six years. His framing — 20 years of corporate experience taught him how to recruit, train, develop talent, and run operations, and that's exactly what he applied to a fragmented industry full of mom-and-pop operators. The maturity advantage outweighs the time disadvantage. He says he wouldn't have done it earlier because he had too many lessons to learn first.
Linington built a $100M+ roofing business almost entirely on door knocking with zero spend on digital marketing or paid leads. His logic: companies that buy leads pay their salespeople less because the lead is given to them. He told his team they could either take half the commission and get fed leads, or keep the full commission and knock. They chose to knock. The unsexy, in-person channel is exactly the lane most contractors are afraid of, which is why margin lives there.
Linington's framework for door knocking: stop thinking like a salesperson and start thinking like the Red Bull promoter at an event. The Red Bull person doesn't want money from you, they're handing out free product. Linington reframes a door knock the same way — you're a facilitator promoting the fact that the homeowner has damage and you can help return their property to better than pre-loss condition. People are attracted to facilitators and repelled by people who stink of sales.
Linington's rule: hire the attitude, teach them the rest. He says you can teach competency but you can't teach character. The award-winning rep at his sales force in 2025 had never knocked a door before joining and described himself as bad at it but said he doesn't give up. Hire people who can be coached and who don't quit, then put them through repetition until they get good. The 10,000 hour rule applies to door knocking like everything else.
Linington's first offer in his sale process was lower than nine figures and he turned it down. He then spent another seven months tightening the business, learning what private-equity buyers actually want, role-playing the management presentations, and sharpening the data room before going back to market. The full prepare-go-to-market-close cycle took the better part of a year. Anyone expecting a 60-90 day sale of a substantial contracting business is going to be disappointed.
Linington's list, ranked by what moved the needle on his multiple: clean accounting and CRM data with no co-mingled personal expenses, a leadership team that can run the business without the founder, geographic diversification (proof the model works in more than one market), prior small acquisitions that show you can integrate other companies, no lawsuit history with customers or labor, and a business that is still trending up at close. Funds want a platform they can bolt other companies onto, not a one-man show with helpers.
Linington's view: stay focused on one until you are great at it. He calls "seven streams of income" the biggest myth on the internet. Until you have a single business that pays you, every additional venture is a distraction that pulls energy from the main thing. After you've built the first one and have real capital to deploy, then diversify — but with eyes open: real estate is not passive, side businesses are full-time jobs in disguise, and every minute spent on a second business is a minute deprived from the first.
Two parts. First: eliminate distractions like a racehorse with blinders. Today's founders are drowning in shiny-object content, and getting laser-focused is itself a competitive advantage. Second: go do the unsexy work nobody wants to do. Door knocking. Plumbing. Septic. Demolition. Massive opportunities sit in lanes nobody wants to enter, which is exactly why the margin lives there. And screw following your passion — passion isn't innate, it's manufactured by exposure, so pick the unsexy work that pays and let the passion follow.
The systems Kirt Linington used to take a four-man roofing crew and turn it into a $100M+ private-equity exit are exactly the systems we build for contractor clients at Style Marking. Free 30-minute bottleneck audit — we map every choke point where you are required, tell you which ones to fix first, and quote the custom software, automation, dispatch dashboards, and SOPs that will get you out of the day-to-day. Call or text (320) 360-8285.