How Two Brothers Turned a Junk Removal Side Hustle Into a $3M Business (With a Base44 App Built by a Teenager)

Kirk and Jacob McKinney started with a single pickup truck. Now they run eight trucks, employ 25 people, and pulled in $3 million last year. Their secret weapon? An internal app built on Base44 by a teenager with basic tech skills.

Let me be clear about something: this is not a story about a tech startup. This is a blue-collar junk removal business. They haul stuff, sort it, donate what they can, and resell the rest. It is messy, physical work. And it is generating millions of dollars a year.

The fact that a teenager on their team built the app that helps run this operation should make every single person reading this reconsider what "I can't build an app" actually means.

Who They Are

Kirk McKinney, 22, and Jacob McKinney, 21, launched Junk Teens back in 2021. They started by reselling items they found at dumps on Facebook Marketplace. A pair of working speakers turned into $1,000 worth of resellable goods, which turned into a full business.

By 2024, they hit $1.2 million in revenue. Last year, they crossed $3 million. This year, they are projected to reach $5 million. They operate across Cape Cod and Rhode Island, have 25 full-time employees, and have handled an estimated 7.4 million pounds of items.

The Problem: The Founder Bottleneck

When you are running a service business at that scale, the operations side becomes a beast. Jacob was working 12+ hours a day just managing employee routes and figuring out where to dispose of items. He was the bottleneck. Every hour he spent on logistics was an hour he was not spending on growth.

They could have hired an operations manager. Instead, they broke up the job and delegated pieces to their young workforce. And they brought in technology to handle the rest.

What They Built With Base44

Here is where it gets interesting for us. Junk Teens uses a stack of tools: Jobber for CRM, GoHighLevel for customer data collection, Connecteam for employee management. But they also needed something custom: a way to track employee performance with real metrics.

So a teenager who had been on the team for several years, with nothing more than basic tech skills, built an app using Base44 and ChatGPT for UI and UX reference. The app features a leaderboard and statistics that track things like an employee's revenue per hour and closing rate.

This is not a prototype. This is not a demo. This is an app that a multi-million-dollar company runs on every single day.

How They Did It (And How You Can Copy This)

The process here is remarkably simple, and it is exactly what I teach people to do:

1. Identify the spreadsheet you are tired of maintaining. For Junk Teens, it was employee performance tracking that lived in Apple Notes. Yes, Apple Notes. At $1.2 million in revenue, their entire operation ran on Apple Notes.

2. Describe what you want in plain language. The teen on their team used Base44 to describe the app they needed: a leaderboard, performance stats, revenue tracking. He used ChatGPT for UI and UX reference, which is a smart move. You get design ideas from one tool and build the actual app in another.

3. Connect it to your existing tools. Junk Teens did not rip out Jobber or GoHighLevel. They added a custom app on top of their stack. Base44 handles the database, authentication, and the interface. It fills the gaps their other tools leave.

4. Put it in front of the people who need it. The app is used by employees every day. The leaderboard creates healthy competition. Revenue per hour gives everyone a clear picture of what productivity looks like.

What This Means For You

If a teenager with basic tech skills can build an app that a $3 million business depends on, what is your excuse?

I am not trying to be harsh. I am trying to be honest. The gap between "I have an idea" and "I have a working app" has collapsed. You do not need a developer. You do not need a technical co-founder. You need a clear description of what you want and the willingness to try.

The Junk Teens story is not about Base44 being magic. It is about a team that identified a real problem in their business, described the solution in plain language, and shipped it. That is the entire playbook.

The Takeaway

Service businesses are the perfect candidates for this kind of build. You already know your workflows. You already know what is slow, what is manual, what breaks when you are not watching. That knowledge is your app spec.

Start with one problem. Build one tool. See what happens when your team has real-time data instead of guesses.

Try Base44 yourself and build your first app today. The first build costs nothing, and if a teenager can do it, so can you.