I Started Knocking Doors at 42… Then Sold My Company for Over $100M | Kirt Linington

Kurt Lennington was born and raised in South Africa, did not come from a wealthy family, spent roughly 20 years in corporate America, and later built a roofing business that was sold in 2022 for nine figures. He was 52 at the time of the interview.

Lennington did not become an entrepreneur until relatively late: he began knocking doors for roofing sales at 42 while already serving as an executive vice president. He said the humiliation of homeowners sometimes looking down on him mattered less than succeeding, and he deliberately put pride aside.

He argues that age, money, background and perceived disadvantages become limitations largely when people accept them as such. He even suggested that a difficult upbringing can provide a useful “road map” of what not to do.

His childhood in South Africa was financially difficult and sometimes turbulent. He played rugby, got into fights and trouble, and described himself as a difficult young person.

Mandatory military service immediately after high school gave him discipline that he believes materially changed his life. He was deployed during political unrest in South Africa and said he and other young soldiers encountered situations they were too young and insufficiently trained to experience.

Coming to the United States had been a distant dream rather than part of a detailed career plan. Lennington said he had not even flown on an airplane until his twenties.

A friend first proposed moving to America, but Lennington initially declined because he did not want to leave his girlfriend, who was a ballerina. About a year later, after the relationship ended, he called the friend back and agreed to go.

Lennington and his friend sold what they owned and arrived in the United States with about $700 remaining and their bags. He presents that starting point as the contrast to the wealth created later.

His experience moving countries convinced him that changing location alone does not transform a person. He concluded that people and opportunities exist everywhere and that someone can become highly capable wherever they are if they apply themselves.

Roofing was not selected through a grand entrepreneurial thesis. Lennington’s broader principle is to “get in flight” first, receive real-world feedback and then decide whether to continue, change direction or abandon the idea.

The roofing opportunity came through a colleague from his fitness-industry career who had roofing experience. After that colleague left the company they both worked for and joined a roofing business, Lennington proposed supplying the capital so they could start something together.

His original ambition was modest: earning perhaps an additional $10,000–$20,000 per month alongside his corporate income. The roofing company began as a side business rather than an intended nine-figure enterprise.

They quickly saw that roofing was highly fragmented and dominated by relatively small owner-operators. Lennington believed the recruiting, training, talent development and management skills he had accumulated over two decades could provide an unusually strong advantage in that environment.

Within a few years, he says the company had surpassed many competitors by applying professional recruiting and people-development methods to roofing. Human capital, rather than a novel roofing product, became one of its core competitive advantages.

The original team consisted of roughly four people and had little elaborate infrastructure. The operating philosophy was essentially: form the business, understand the product and presentation, knock doors and generate sales first.

Lennington intentionally built demand before building a sophisticated backend. His view was that operations and production could be added rapidly in response to sales, whereas flawless systems were worthless without customers and revenue.

He later hired specialists for functions he did not enjoy or perform particularly well. He first learned many jobs himself, then brought in expertise as the organization became large enough to justify it.

Choosing people became one of the harder parts of scaling. Lennington said entrepreneurs will repeatedly be disappointed by employees and partners, sometimes by people closest to them, but have to learn from those mistakes and continue.

Texas offered unusually favorable economics for the roofing model because large homes and frequent hail create recurring roof damage. Lennington also stressed that treating customers properly can lead to repeat roof replacements over the lifetime of the relationship.

He kept his corporate job for four years while simultaneously building the roofing company to roughly $62 million in revenue. He acknowledged that describing this as “part-time” understates the workload because he was effectively doing two full-time jobs.

His weekends were spent knocking doors, inspecting roofs and giving sales presentations while maintaining his executive career during the week. His wife was directly exposed to the sacrifice, sometimes waiting in the car while he completed roof inspections and presentations.

His corporate career had already conditioned him to an extreme workload. He recalled that after leaving it, the first New Year’s Day he did not work was his first such day off in 19 years; previously he routinely worked six days a week while traveling extensively.

The economics of roofing made the extra workload rational to him. He calculated that a roofing commission earned on a Saturday could equal what some fitness-industry employees might take weeks or months to earn.

Lennington did not immediately resign from his secure career because he expected to remain in corporate America indefinitely. He finally went full-time when the roofing company became so successful that he felt remaining a part-time leader undermined the commitment he was asking from employees.

The company was deliberately run lean even as revenue grew. It began in a living room, moved into an office barely large enough for a desk and two chairs, and expanded gradually rather than immediately buying fleets of vehicles or conspicuous assets.

A substantial share of early profits was reinvested rather than distributed to the owners. When his business partner questioned why they were not taking more money out, Lennington later presented him with a $1 million check to demonstrate the payoff from allowing capital to compound inside the business.

The lesson Lennington drew from that experience was to invest in the company and its people for the long term rather than extracting every dollar as soon as it is earned. He believed larger eventual distributions justified foregoing smaller ones along the way.

Labor availability became one of the company’s earliest major constraints because sales initially grew faster than installation capacity. At one point Lennington told his partner to drive around looking for roofing crews working on other jobs and recruit them directly.

The quality of available crews improved as the company’s reputation improved. Early on they often had access only to crews that lacked other work; later, reliable subcontractors became loyal because the company kept them busy consistently.

Lennington says the company treated subcontractors as important partners rather than disposable labor. It paid fairly and on time, kept crews working throughout the year and used small gestures such as bringing water and breakfast to job sites.

Those contractor relationships eventually became portable across a much larger footprint. At the time of the conversation, Lennington said the organization was doing work in 27 states.

The company remained overwhelmingly a residential roofing business, with more than 80% of its work in residential and the remainder in multifamily and commercial projects. Lennington deliberately kept residential roofing at the center of the model.

He considers commercial roofing a materially different and more technical business. Projects can be larger, but sophisticated owners and property managers often negotiate more aggressively, compress margins and require salespeople who understand more complex roofing systems.

An early attempt to move into complex commercial work produced an expensive failure. The company won a high-rise condominium project in downtown Dallas despite lacking the required expertise and relied too heavily on an experienced installation crew.

The high-rise roof was installed incorrectly and the first major rain allowed water into top-floor condominiums. Lennington said rebuilding the damaged units cost the company a couple hundred thousand dollars, which he personally had to finance.

That failure created one of his strongest operating rules: stay within an area of competence until the company is genuinely good enough to expand. Trying to become a major player too quickly can turn a prestigious-looking project into an expensive lesson.

Lennington’s earlier corporate experience had taught him to operate with very small marketing budgets. He recalled working in an organization that grew from roughly 40–50 locations to 820 while his marketing allowance was only about $500 per month per location.

Because of that background, his roofing company initially spent essentially nothing on conventional marketing. Growth came through door knocking, grassroots activity and relationship-building rather than paid digital lead generation.

He explicitly gave salespeople a choice between company-generated leads with lower compensation and generating their own opportunities through door knocking while retaining more of the economics. The successful sales culture preferred the latter.

The sales model sought to compress prospecting, inspection and closing into the same interaction whenever possible. A salesperson could knock a door, inspect the roof and, where legitimate storm damage existed, begin the appropriate retail or insurance process rather than merely setting an appointment for someone else.

Lennington emphasizes that insurance work should be based on genuine qualifying damage rather than manufacturing a claim. His explanation was that replacement makes sense when sufficient damage creates a future loss risk that the insurer recognizes under the policy.

His central sales reframing is that prospects are rejecting an offer, not rejecting the salesperson personally. Removing personal ego from rejection makes sustained prospecting easier.

He also teaches salespeople to think of themselves as promoters or facilitators rather than people desperately trying to “sell” something. In roofing, that means explaining genuine damage and facilitating a repair process instead of projecting the pressure associated with a stereotypical salesperson.

Desperation is particularly damaging because customers can sense when a salesperson badly needs a single appointment to close. Lennington argues that insufficient pipeline causes people to squeeze individual prospects too aggressively, damaging the customer experience and often the economics of the deal.

Repeated exposure is his primary solution to fear of rejection and weak sales ability. He invoked the 10,000-hour idea and argued that sufficient repetitions can make someone competent even when the skill initially feels unnatural.

He considers persuasion a normal part of ordinary life rather than something unique to professional sales. People continually persuade parents, partners, spouses and others, so the underlying ability already exists even in people who do not identify as salespeople.

Natural charisma is not necessarily an advantage in sales. Lennington believes naturally smooth salespeople can acquire bad habits or appear contrived, while less polished people may outperform them through work ethic and persistence.

He cited a quiet salesperson who had never previously knocked doors and later won one of the company’s awards. The employee summarized his success by saying, in effect, that he was not good at door knocking but simply refused to give up.

The company’s hiring principle became “hire the attitude, teach the rest.” Lennington agreed with the distinction that competency can be taught much more readily than character.

After generating substantial wealth, Lennington diversified into a landscaping company, a swimming-pool company, a land-development company and personal investments. He described allocating capital into investments as a way of making the money unavailable for casual spending.

He strongly rejects the popular idea that an aspiring entrepreneur immediately needs seven streams of income. His argument is that someone who has not mastered one business will turn every additional activity into a distraction.

He likewise disputes the idea that individually owning rental properties is automatically “passive income.” Tenants, maintenance and property-management problems still consume time, and every hour diverted to a secondary activity is an hour not invested in making the primary business stronger.

His preferred sequence is concentration first and diversification later. Build one genuinely successful engine, accumulate enough capital, and only then put that capital to work in other businesses or assets.

Lennington believes unfashionable industries can offer exceptional opportunities precisely because fewer people want to do the work. Door-to-door sales, plumbing and similar unglamorous activities may provide an open lane while competitors chase whatever currently appears exciting.

The possibility of a private-equity exit entered his thinking after a roofing convention in Florida. A supplier introduced him to someone who had sold a company to private equity, prompting Lennington to begin researching how valuation multiples and institutional acquisitions worked.

He came to view a large exit multiple as a form of accelerated future earnings. His simplified example was that a 10× multiple effectively realizes roughly ten years of earnings at once.

Once he understood the model, he told the leadership team they would deliberately build the company to take it to market and create a payday for the broader group. He gave key leaders economic participation because he wanted management incentives aligned with the owners’ outcome.

Lennington sought advisers with direct sector experience rather than attempting to learn an unfamiliar transaction process alone. He contacted the broker involved in another large roofing-company sale and brought in someone who had already successfully sold a major roofing operation.

Preparation for sale included repeatedly rehearsing buyer conversations, analyzing the business and identifying areas that needed tightening before due diligence. Roofing had particular accounting and revenue-recognition nuances that generalist buyers did not always understand well.

The company’s first serious offer was below nine figures but, according to Lennington, not far below that threshold. Members of his team favored accepting because of the excitement around joining a large private-equity platform, but Lennington believed the business was materially undervalued.

His argument for a higher valuation rested on the company’s growth rate, recruiting system, training platform and demonstrated ability to reproduce its operating model. He believed those capabilities made it more valuable than roofing companies being purchased at standard sector multiples.

He rejected that initial offer and spent another seven months improving the business. The first sale process became a source of intelligence about what buyers cared about and which details could materially increase enterprise value.

The company then returned to market, received multiple offers and ultimately completed a nine-figure transaction in 2022. The sequence shows that Lennington deliberately delayed liquidity to improve both the company and its negotiating position.

He describes selling to private equity as entering a marriage rather than simply collecting a check. An owner accustomed to making every decision must become comfortable sharing or surrendering control for the larger strategy.

The strategic reason for choosing private equity was acceleration. Lennington and his team wanted to build what he described as the first truly national American roofing company and believed institutional capital could get them there faster.

He took money off the table in the transaction but also reinvested into the combined business. That preserved his participation in the value created by the larger platform rather than making the transaction a complete exit.

The platform subsequently acquired eight businesses and moved toward extensive centralization. Lennington said the businesses had been integrated onto common CRM and ERP systems.

At the time of the interview, the group was preparing to eliminate the acquired companies’ separate brand names within roughly 30 days and operate under a single national identity. The objective was to present future buyers with one integrated enterprise rather than a collection of loosely connected acquisitions.

Lennington said larger private-equity buyers increasingly expect substantial integration before paying the highest valuations. In his account, changing debt markets and greater diligence mean an assortment of separately run brands is less attractive than one centralized company operating cohesively.

He framed the ultimate institutional goal as building a platform capable of attracting funds prepared to pay more than $1 billion. In that market, he said buyers expect standardized systems, integrated operations and demonstrable scalability.

For an eventual sale, he says buyers want substantial growth still available after the transaction—the “meat left on the bone.” A company is more attractive when existing systems, leadership and processes can keep expanding revenue without relying entirely on the founder.

Founder dependence materially affects the structure of an exit. Some businesses can sell with a successor already in place and allow the owner to leave immediately; others require the founder to remain because too much operational knowledge still sits with that person.

His practical exit-preparation advice is unusually basic: pay for strong accountants and attorneys, use proper contracts, file taxes correctly and keep financial records clean. He warned that shortcuts that seem harmless in a small owner-operated company become liabilities during institutional due diligence.

Personal and company finances should not be casually mixed if a future sale is the objective. Cars, personal expenses, questionable write-offs and other blurred transactions create accounting ambiguity that a sophisticated buyer must untangle.

A history of avoidable lawsuits can likewise lower a company’s attractiveness. Lennington argues that treating customers and employees properly is not only an ethical issue but also helps preserve future enterprise value.

Geographic replication is another important proof point for private equity. Showing that the operating model works outside the original market reduces the risk that success depended on one geography or one founder’s local relationships.

Demonstrated acquisition capability can add another layer of value. A business that has successfully bought and integrated one or two companies gives an investor evidence that additional acquisitions can be folded into the same operating system.

In the private-equity structure Lennington described, the strongest initial company becomes the “platform,” while subsequent businesses are bolt-on acquisitions. The platform may command a higher valuation multiple, while lower-multiple acquisitions can be improved using its management systems and ultimately sold as part of a more valuable consolidated enterprise.

His simplified private-equity example was buying businesses around 5× earnings and eventually selling the combined operation at perhaps 10×, 12× or 14×, with debt repaid from the transaction. He explicitly presented this as a simplified illustration rather than a complete description of the economics.

The 2022 closing took place while Lennington and his partner were in Las Vegas. Banks, lawyers, accountants and transaction participants joined the final closing call and told them the funds should arrive within roughly one or two hours.

While waiting for millions of dollars to reach their accounts, Lennington and his partner went downstairs, played blackjack and repeatedly refreshed their banking apps. Once the money arrived, they had tequila; Lennington said the experience was surreal but that he generally remained emotionally even-keeled.

One of Lennington’s strongest non-business beliefs is that “there’s no such thing as business problems, just personal problems that roll into the business.” His point is that character, habits, relationships and personal instability eventually appear in someone’s professional behavior.

He rejects the idea that leaders can successfully maintain one identity at home and another at work indefinitely. Talented employees eventually recognize the inconsistency, and the leader’s real character begins affecting trust and organizational performance.

Because of that belief, Lennington spends significant time coaching high-performing people through personal challenges created by success rather than focusing only on professional failure. He thinks improving employees’ home lives, discipline and judgment ultimately produces a stronger business.

He also believes leaders gain credibility when employees see them living by the principles they teach. Advice about discipline, family, physical health and character has more force when the leader visibly follows it.

Lennington does not think money has a single predictable effect on character. It can amplify existing traits, but he also believes receiving too much money before developing sufficient maturity can inflate ego and produce destructive decisions.

He therefore places greater importance on the person someone becomes while building wealth than on the wealth itself. Respect, trust, loyalty and work ethic can continue compounding after money disappears and, in his view, make it possible to rebuild.

His principal advice to younger people is to eliminate distractions and develop extreme focus. He compares this to the blinders placed on a racehorse so attention remains on the path directly ahead.

That focus should often be directed toward neglected, difficult work rather than whatever appears fashionable. Lennington believes crowded “cool” opportunities can be less attractive than unpleasant problems that few people are willing to solve.

He explicitly rejects “follow your passion” as universal career advice. His theory is that passion itself is often created by repeated exposure during childhood or adulthood rather than being a fixed calling someone must discover.

Because exposure can create interest, Lennington believes adults can deliberately immerse themselves in an area and eventually become passionate about it. He sees no requirement that the business generating wealth must also be the founder’s deepest personal passion.

He sees passion projects as something a financially secure person can pursue later without forcing them to carry the economics of the primary business. In his view, financial opportunity and personal fascination do not have to be the same thing.

Despite repeated encouragement, Lennington has never written a book because he believes public authority should be earned through demonstrated achievement. He is skeptical of people using ghostwritten books to establish themselves as experts before producing results that justify the status.

He said he may never write a book, partly because some of the questions that interest him most remain unresolved in his own mind. One example is why many people who begin poor remain poor despite access to instruction or opportunities.

The discussion produced several proposed explanations for persistent poverty, but no single answer was treated as conclusive. Suggestions included excessive consumption of educational content without execution, weak belief systems, damaging childhood examples, fear of taking the first step, self-sabotage and resistance to advice.

Lennington repeatedly returned to teachability as a possible part of the answer. He has tried to coach people who ask for help but respond to every recommendation by insisting they have already tried it or explaining why it cannot work.

A former employer taught him to ask, “Do you want to be right or do you want to be rich?” Lennington uses “rich” broadly to include family, friendships and quality of life rather than only financial wealth.

The point of that question is that defending one’s existing beliefs can prevent learning from someone with better evidence or experience. Lennington finds it contradictory when people seek his help but are primarily interested in proving his recommendations wrong.

One interviewer distilled that problem into the provocative claim that broke people often behave as if they already know everything. Lennington considered resistance to being taught an important clue, though he still said he did not believe they had fully “cracked the code” of why poverty persists.

Lennington connected that pattern to his own stepfather, who worked for the railways and repeatedly lost or changed jobs. The family lived in a small railway-provided house with a tin roof, and Lennington recalls his stepfather consistently blaming other people rather than examining his own role.

That experience reinforced Lennington’s preference for “looking in the mirror” rather than repeatedly looking outside for someone to blame. The interviewers compared the pattern to someone whose every failed relationship is supposedly always the other person’s fault.

Lennington believes outsiders routinely mistake accumulated experience for overnight success. People saw a corporate executive open a roofing company and scale quickly, but he attributes many of the decisions behind that growth to the 20 years of lessons he had already accumulated.

For that reason, he does not wish he had started the roofing company much earlier. In his view, beginning sooner might also have meant beginning without the management experience necessary to build it as effectively.

The podcast hosts said their own experience supported the same point. They had built their channel and related businesses over about five years to more than $1 million per month, but acknowledged that during the first year or two they were strong content creators and weak business operators.

The hosts said improvement came from accepting guidance from people with expertise rather than assuming they already knew how to run the business. Their conclusion matched Lennington’s: some lessons cannot simply be transferred backward because the person has to accumulate the experience that makes the lesson usable.

At 52, Lennington said he wants his life to be measured more by the people he helps than by a formal legacy project. He speaks with young people, shares advice with people who approach him at events and car shows, and says he has traveled to companies to help them without charging.

He deliberately avoids becoming preoccupied with “leaving a legacy” because he thinks legacy-building itself can become an ego exercise. His preferred approach is to continue doing useful things for other people and allow whatever legacy results to emerge naturally.