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Our Story

Built by an operator.
For operators.

MarginPlug exists because I almost ran my own service business into the ground — while it looked fine from the outside.

My name is Davis Fisher. I own a junk removal company in Charlotte, NC. A few years into running it, I hit a wall that I suspect a lot of service business owners know well: the trucks were running, the phone was ringing, the reviews were good — and somehow the bank account wasn't reflecting any of it.

I spent months convinced the problem was marketing. Then I thought it was pricing. Then I blamed seasonality. The truth, when I finally dug into the numbers, was messier than any single answer. I had a close rate problem bleeding into an average ticket problem, compounded by dispatching inefficiency I hadn't measured once. Three separate leaks. None of them visible until I forced myself to build a picture of the whole business at once.

"The problem was never a lack of data. The problem was that nobody had ever translated the data into a diagnosis."

I had reports. I had a bookkeeper. What I didn't have was anyone or anything telling me: here is your #1 constraint, here is what it's costing you per month, and here is what to fix first. That gap is what MarginPlug is designed to close.

I built the first version of MarginPlug for myself. Then, long before the current version, I ran other operators I knew through those earlier versions of MarginPlug. The pattern was consistent: owners who felt like something was wrong but couldn't name it. Owners spending money on marketing for a business whose close rate would have swallowed every lead they sent it. Owners running at 100% capacity who didn't realize their revenue per truck was 40% below what it should be.

MarginPlug isn't a software company. It's a diagnostic engine. We don't sell dashboards — operators already have too many of those. We sell clarity about what to fix next. One score. One constraint. One action. Every snapshot.

5
Diagnostic pillars scored on every snapshot
1–20
Truck range we're built for
~20
Numbers from your own reports, for one month

What we believe

The facts

MarginPlug at a glance

Who it serves
HVAC business owners running 1–20 trucks.
What it is
HVAC profit intelligence: a profit-leak diagnosis for the owner that looks at the whole business. It is not a technician job-costing tool.
What you get today
A snapshot-based diagnosis: a Business Health Score from 0 to 100, scores for five areas of the business, and prioritized profit-leak findings, with the biggest leak named first, the evidence behind it, an estimated dollar range where your numbers support one, and a recommended first action. Every snapshot is kept in your history and can be exported as a PDF.
What you provide
About 20 numbers for one month, taken from your own reports and exports: your field-service software, your accounting and your phone or call tracking. Revenue and job count are required.
Not available yet
A direct Housecall Pro connector is in staging testing and not available to customers yet. There is no direct ServiceTitan integration. Owner file upload is in a limited preview and not open to customers yet. Live benchmarking against other HVAC companies is a future capability; today your numbers are compared with fixed HVAC benchmark targets built into MarginPlug.
Price and onboarding
$97/month after a 14-day free trial. Fully self-serve: no sales calls and no walkthrough calls.
Limitations
MarginPlug only knows the numbers you enter. It does not connect to your other systems yet, does not analyze individual technicians, jobs, dispatch routes or ad campaigns, and does not replace your accounting or field-service software. Dollar figures are estimates from your numbers, not forecasts or guarantees.

See your own diagnosis.

Start with the free diagnostic — about 5 minutes, no signup required. Or start your 14-day free trial ($97/month after, fully self-serve) and get your first full report this week.