Guides
Running a garage door service business by the numbers: monthly KPIs
Eight garage door service KPIs with written formulas, the blind spot beside each one, and a half-hour monthly review that changes exactly one thing.
What to take away
- Track eight numbers, each with a written formula, an owner, and a decision it can trigger. Anything without those three is a statistic.
- Define each measure before collecting it. Half the arguments about numbers in small shops are really arguments about definitions.
- Compare against your own history, not against a figure from elsewhere. No published benchmark knows your travel distances or your job mix.
- Every measure has a blind spot. Write the blind spot next to the formula so nobody forgets it.
- Set your own action level for each one. A number without a level attached never changes anything.
The eight, with their formulas
Use your own records for every term. None of these needs an external figure.
Eight KPIs and Their Formulas
- CV / VCompleted visits per vehicle per week
- CV / DFirst-visit completion rate
- R / JCallback rate
- Revenue - parts - labor / CVContribution per visit
- A / CAnswer rate
- B / ABooking rate
- Median days to paymentDays to cash
- Field hours on returnsRework hours
- Completed visits per vehicle per week. CV divided by V, where CV is visits that finished the work and V is vehicles in service. Blind spot: says nothing about the value of those visits.
- First-visit completion rate. CV divided by D, where D is visits dispatched. Blind spot: a shop that only takes easy work scores well.
- Callback rate. R divided by J, where R is return visits caused by earlier work and J is jobs completed in the same period. Blind spot: hides the cause unless each return is classified.
- Contribution per visit. Revenue minus parts minus direct labor and travel, divided by completed visits. Blind spot: ignores the fixed costs behind it.
- Answer rate. A divided by C, where A is calls answered by a person and C is calls received. Blind spot: does not capture what happened on the call.
- Booking rate. B divided by A, where B is calls that became booked visits. Blind spot: falls for good reasons when you correctly decline work.
- Days to cash. The median days between work completed and payment received. Blind spot: a median hides the one account that is very late.
- Rework hours. Total field hours spent on return visits. Blind spot: only meaningful next to the hours available.
Writing the definition before the number
For each measure, write down: the formula, where each term comes from, who produces it, when it is produced, and what would make you act. Then keep that page and stop renegotiating it. A shop that redefines a measure whenever it looks bad has no measurement at all.
Define Each Measure Before Tracking
- Write the formula
- List where each term comes from
- Name who produces it
- Set when it is produced
- Define what would make you act
- Keep the page and stop renegotiating
The dispute to settle first is what counts as a completed visit. The useful definition is that the work the customer called about was finished and nothing further is required. Anything looser turns measure two into decoration.
Which number to look at first
Measure two, first-visit completion. It is the one that moves margin, response time, and customer trust at once, and it is caused by things you control: the intake questions, the truck stock, and who was dispatched.
When First-Visit Completion Falls
- Check intake questions first
- Then check truck stock
- Then check dispatch and sign-off
When it falls, look in that order. Intake first, because it is free to fix. Then stock, using the approach in the equipment and setup guide. Then dispatch and sign-off, which is the subject of the hiring and training guide.
Setting your own action levels
Nobody outside your shop can tell you what a good callback rate is. Establish a baseline over three months.
Then set two levels: one where you investigate, and one where you stop and fix something before taking more work. Write both down and review them when the business changes, not when a bad week arrives.
Put the levels next to the formula on the same page. A measure whose action level lives in the owner's head produces different responses on different days.
The monthly review, in half an hour
- Read the eight numbers against last month and against the same month last year.
- Pick the one that moved most and ask what caused it, with the underlying records open.
- Choose one change, name its owner, and set the date it will be checked.
- Record the decision. Next month you will want to know why you did it.
Resist changing several things at once. A shop that adjusts price, stock, and schedule in the same month learns nothing from the result.
The records this depends on
All eight come from the job record and the call log. If those are incomplete, the numbers will be confidently wrong, which is worse than no numbers.
Business record baselines come from the IRS overview of what a business should keep. This trade also needs job-level time, parts, and outcome data, covered in the software and KPI guide.
Those records hold customer addresses and access details, so protecting them is part of running the business rather than an optional extra. The NIST small business cybersecurity quick-start guides and the CISA material for small and medium businesses are written for organizations of this size and cover the basics: access control, multi-factor authentication, and a backup you have tested.
Numbers that belong somewhere else
Some things matter and should not be reviewed monthly: licensing renewals, insurance review, and permit position per jurisdiction are date-driven, not trend-driven. Put them in the compliance file described in the licensing and compliance guide.
Longer-range assumptions about the market and service mix belong in the business plan, where they can be reviewed against the year, not the month.
Common questions
What is a good first-visit completion rate?
The one above your own last quarter. Published figures cannot account for your job mix, your service area, or what you carry on the truck.
Should technicians see these numbers?
The operational ones, yes, and the definitions with them. Numbers shown without definitions are read as judgments and produce defensiveness rather than improvement.
How long before a change shows up?
Intake changes show within weeks. Stock changes take a full cycle of the fault types you carry for. Training changes take months. Judge each on its own clock.
Is one composite score useful?
No. It hides which of the eight moved, which is the only part that tells you what to do.
