Why I Made a Business Course for Window Tint, PPF, Detailing, and Other Service Business Owners

There is no shortage of advice telling business owners what to add next.

Run more ads.

Offer another service.

Hire someone.

Add PPF.

Add ceramic coating.

Get into flat glass.

Post more content.

Open another location.

Some of those things can absolutely be the right move.

But after spending most of my career building and operating service businesses, I think a lot of owners have a different problem.

They already have enough things to work on.

What they need is a better way to decide which things actually deserve their attention.

That is why I made Addition by Subtraction.

The idea came from a problem I kept seeing

Window tint, PPF, detailing, wraps, ceramic coatings and other service businesses can get complicated surprisingly fast.

You start with one service.

Then customers ask for something else.

A new opportunity comes along.

A competitor starts offering something.

A new marketing channel looks promising.

Someone tells you that you need another employee.

Before long, the business has more services, more pricing, more marketing, more equipment, more scheduling problems and more things for the owner to keep track of.

Revenue may even be going up.

That does not automatically mean the business is getting better.

Sometimes the next move really is growth.

Sometimes the next move is fixing the sales process.

Sometimes it is raising a price.

Sometimes it is hiring.

And sometimes the smartest thing you can do is stop doing something that is taking more from the business than it gives back.

That decision is harder than adding another idea.

Most business training starts with what to add

There is a lot of great installation training in the window tint, paint protection film and detailing industries.

If you need to learn how to install window film or ppf, polish paint, apply a coating or improve a technical skill, there are people much better suited to teach you that than I am.

Addition by Subtraction is about something different.

It is about looking at the business itself.

Which services are actually worth doing?

Which customers do you want more of?

Where is the profit really coming from?

What is your marketing producing?

Where is your time going?

What has become unnecessarily complicated?

And if you could only improve one thing next, what should it be?

Those questions apply whether you own a window tint shop, a PPF studio, a detailing business or another service company entirely.

The work may be different.

A lot of the business problems are not.

A course and business coaching solve different problems

If you are searching for a window tint business coach, PPF business coaching, a detailing business course or some other kind of business training, I would first ask what you actually need help with.

Not every problem requires coaching.

If you already know exactly what is wrong and what you need to do, you probably do not need a course either.

Go fix it.

One-on-one work makes more sense when the situation is specific to your business and you want someone to work through the decision with you. Pricing a major change, deciding whether to hire, reviewing your marketing, figuring out why the business is not as profitable as it should be. Those are situations where another person looking at the details can be valuable.

A self-guided course solves a different problem.

Sometimes you need structure.

You need to get out of the day-to-day for a couple of hours and look at the business as a whole instead of solving whatever happened to be loudest that morning.

That is what I wanted Addition by Subtraction to do.

I intentionally kept it short

The workshop has 8 focused video lessons and a 14-page fillable workbook.

Plan on roughly 2–3 hours total if you actually work through the workbook using your own business.

It is completely self-guided.

You buy it once, start whenever you want, and come back whenever you need to. There are no live sessions, scheduled calls or deadlines.

It is $250 one time.

The point is not to consume a bunch of content.

The point is to finish with a clearer answer to a much more useful question:

What should I actually do next?

What you work through

The workshop has you look at your own business rather than a hypothetical one.

You work through your services, customers, profitability, marketing, time and priorities. The goal is to identify what deserves more attention, what may be creating unnecessary complexity, and where effort is not producing enough return.

By the end, I want you to have one specific change you are ready to make first.

Maybe you realize a service you have been pushing is not nearly as valuable as another one.

Maybe your problem is not lead volume at all. It is what happens after someone contacts you.

Maybe you are doing work an employee should be doing.

Maybe the business is busy but the margins do not justify the effort.

Or maybe you look at everything and decide the right move really is to grow.

Addition by Subtraction does not assume the answer is to get smaller.

The point is to be more deliberate about what gets bigger.

This applies beyond window tint

Window tint is where much of my experience comes from, so naturally a lot of the examples and people who find my work come from that industry.

But I have become increasingly interested in the overlap between window tint, PPF, detailing and service businesses more broadly.

A detail shop deciding whether to add PPF can face the same underlying question as a tint company considering commercial film.

A PPF shop hiring its first salesperson can run into the same issues as another service business trying to get the owner out of every estimate.

A company offering five services can discover that two of them are creating most of the profit.

Different trade.

Same business decision.

That is why I intentionally made the workshop for service business owners, not only window tint companies.

You may not need the course

I am perfectly fine saying that.

If you read this and already know the one thing you need to change, take the $250 and put it toward fixing it.

If the problem is more complicated and you want someone to look at the situation with you, one-on-one business advisory may make more sense than a self-guided workshop.

But if the business feels busy, complicated or pulled in too many directions and you need a structured way to step back and decide what actually deserves your attention, that is exactly why I made Addition by Subtraction.

Not to give you more things to do.

To help you get clearer about the things already in front of you.

Addition by Subtraction is available anytime as a self-guided workshop for $250.