The overhead killing small contractors rarely looks dangerous when you sign up for it. It's not the truck or the spring inventory — it's the pile of fixed monthly costs that don't turn a wrench: office payroll, software seats, insurance creep, and the phone problem you keep paying for three different ways.
None of these kill you in a month. They kill you by eating the margin on every job, every month, until a slow season shows you what was actually left.
Pull your bank statement from last month and mark every charge that hits whether or not you sell a single job. Example figures for a two- or three-truck shop — yours will differ:
Add the modest version up and you're at $6,000–$9,000/month before a tech touches a door. Trimming that pile — raising revenue faster than fixed costs — is the core idea behind growing without adding overhead, and it starts with seeing the pile clearly.
Here's why fixed overhead is deadly and variable costs aren't: every fixed dollar has to be earned before you keep anything.
Say your average ticket is $350 and your gross margin after tech pay, parts, and fuel is 45% — about $157 per job going toward overhead and profit. (Example numbers; run your own.)
At $7,500/month in fixed overhead, you need roughly 48 jobs a month just to break even. Job 49 is the first one that pays you.
Now cut $2,000 of overhead that wasn't producing anything. Break-even drops to about 35 jobs. That's thirteen fewer jobs a month that have to happen before you make a dime — the difference between a bad month being annoying and a bad month being a crisis.
This is why two shops with the same revenue end up in different places. One audits the fixed pile twice a year. The other keeps paying for things that made sense three years ago.
You can't cut your way to a great business, and some overhead buys real growth — a good office manager or working marketing earns its keep. The rule isn't "cut everything." It's "every fixed dollar should have a job."
The phone line item is the easiest place to start, because shops often pay for it three times: in office hours spent answering, in jobs lost when calls go to voicemail, and in the stress of covering gaps. Ava answers every call 24/7, captures name, number, address, and issue, books service windows, and texts you a summary after each one — for $297/month flat, unlimited calls, no contract. That's one predictable line instead of three leaky ones.
Two related reads: revenue per employee in a garage door business gives you the efficiency number to watch as you grow, and adding jobs without adding office hours shows where the capacity comes from when the phones run themselves.
Overhead killing small contractors is almost never one big mistake. It's ten small ones on auto-renew. Find them before slow season finds them for you.
Call the live demo and have Ava call you now — hear exactly what your customers will hear when they call your shop.