How a Solo Founder Built a SaaS by Selling to Car Detailing Shops

**Fexingo** (0:01)
If you've ever tried to book a car detailing appointment, you know the drill, you call three shops, leave voicemails, wait for callbacks, maybe get a text with a random time. And then the detailer shows up late because he's juggling everything on paper.
Right.

**Luna** (0:15)
And that's exactly the chaos that today's founder saw and turned into a business.

**Fexingo** (0:21)
Yeah. This is episode 94 of The Tech Founder Podcast, and we're looking at a solo founder who built SaaS specifically for car detailing shops.
Not for auto repair, not for tire shops, just detailing. We'll call him Dan.

**Luna** (0:36)
And Dan is not a coder by trade, which is part of what makes this story interesting. He was a mobile detailer himself for about four years.

**Fexingo** (0:44)
Exactly. So he was living the pain firsthand.
He'd be out with his van, doing a $300 interior and exterior detail, and he'd have to pull over to answer the phone from a potential customer. While he was elbow-deep in shampoo, he lost bookings constantly.

**Luna** (1:02)
So he builds a booking tool for himself. That's the classic solo founder origin story. But then he realizes other detailers have the same problem.

**Fexingo** (1:11)
Right. And here's where the episode's specific number comes in.
The car detailing industry in the US is about a $12 billion market, according to a 2025 IBIS World Report. But it's incredibly fragmented. There are over 60,000 independent shops and mobile operators. The vast majority are sole proprietors or small teams of two to five people.

**Luna** (1:37)
So it's big enough to be a real market, but too small and spread out for the big players like Service Titan or Housecall Pro to tailor product for them.

**Fexingo** (1:46)
That's the sweet spot Dan found. He launched a very basic MVP, just a scheduling page with SMS reminders and a simple calendar. He built it with a no-code tool called Bubble, which a lot of our listeners probably know. Total cost to launch?
About $200 and three weekends.

**Luna** (2:05)
And then he just started selling. But he didn't cold call. He did something smarter.

**Fexingo** (2:11)
He went to the places where debt-tellers already hang out. Facebook groups mostly. There's a group called Mobile Debt-Tellers United with about 40,000 members.
Dan joined, started answering questions, not pitching his software, just being helpful. What do you use for scheduling?
Someone would ask. He'd say, I built this little tool for myself. Happy to share it.

**Luna** (2:36)
That's a classic rinse and repeat sale strategy. It worked because he wasn't selling to strangers. He was the guy from the forum who actually did detailing himself.

**Fexingo** (2:47)
Within six months, he had about 150 shops using it all on a free tier. Then he introduced a paid plan, $79 per month for unlimited bookings and payment processing integration.
He lost about 20 percent of his users, but the ones who stayed were serious.

**Luna** (3:06)
$79 is an interesting price point. It's not nothing, but for a detailer who does maybe three or four cars a week at $200 each, it's a small fraction of revenue.
And it covers the cost of missed calls and double bookings.

**Fexingo** (3:21)
Exactly. Dan's logic was, if a single missed booking costs you $200, the software pays for itself after one job, and he priced it just under the threshold where a solo operator would need to think twice. He's now at 400 paying customers, generating roughly $380,000 in annual recurring revenue.
Solo founder, no employees, no Ventura Capital.

**Luna** (3:48)
And he still does detailing himself. I think that's part of the appeal for his customers. They know the software is built by someone who still uses it.

**Fexingo** (3:57)
He does it two days a week. He says it keeps him grounded and gives him a direct line to what his users need. For example, he added a feature where customers can upload photos of their car before the appointment.
Debt tellers were asking for it because it helps them estimate time and spot issues like dog hair or smoke damage before they show up.

**Luna** (4:18)
That's brilliant. He's essentially doing continuous product discovery by continuing to work in the field. Most founders would kill for that kind of feedback loop.

**Fexingo** (4:28)
So the big lesson here, and I think this is the takeaway for anyone listening who's thinking about building a SaaS, is the power of a narrow vertical. Dan didn't try to build a scheduling tool for all service businesses. He purposefully kept it to car detailing. That constraint let him do a few things right.
He knew exactly who to sell to, he knew exactly what features mattered, and he had credibility.