Every return trip is a second truck roll for the same revenue. That is why first-time fix rate sits close to the top of most service managers' scorecards: it moves margin, capacity and customer patience at the same time, and the causes behind it are usually fixable.
First-time fix rate in plain English
Take an example no-cool call on a July afternoon. The tech finds a failed run capacitor, swaps it from the truck, confirms the system cools and leaves. That is a first-time fix.
Now the same call, but the failed part is a specific blower motor the truck does not carry. The tech diagnoses it, orders the motor and books a second visit. The customer is still hot, the company pays for two trips, and tomorrow's board loses a slot. That job counts against first-time fix rate, even though nobody did anything wrong on site.
The rate does not judge the tech alone. It measures the whole chain: what the customer told the office, how the job was assigned, what was on the truck and how well the problem was diagnosed.
How do you calculate first-time fix rate?
Metric
First-time fix rate
The share of jobs that needed a fix and were fully resolved on the first visit, with no return within your counting window.
Jobs fixed on the first visit ÷ jobs that needed a fix × 100
Where the numbers come from: Completed jobs by type, visit count per job and a reason code on every return trip.
Here is an example month for a six-tech HVAC shop, split by job type:
| Job type (example) | Jobs needing a fix | Fixed first visit | First-time fix rate |
|---|---|---|---|
| No-cool / no-heat repair | 110 | 92 | 83.6% |
| Water leak / drain | 40 | 37 | 92.5% |
| Noise or odor complaint | 30 | 23 | 76.7% |
| All repair jobs | 180 | 152 | 84.4% |
The blended 84.4% hides the real story: noise and odor complaints come back far more often, which points at diagnosis on that job type rather than parts.
Common mistakes in the math
- Counting maintenance in the denominator. Tune-ups with nothing to fix push the rate up without any improvement.
- Counting planned second visits. An install with a scheduled inspection or a staged project was never meant to finish in one trip.
- Only checking the same tech. If a different tech goes back for the same problem, it is still a return trip.
- Crediting fixes too early. A job that fails nine days later was not fixed. Wait until your callback window closes before you count it.
What is a good first-time fix rate?
Set your own baseline instead. Pull 90 days of repair jobs, split them by job type, and compute the rate with the rules above. Then watch the trend monthly on the same job mix. A change in mix (more complex commercial work, say) will move the blended rate on its own, so always look at it by job type first.
What lowers first-time fix rate, and what to do about it
| Cause | Why it creates a return trip | How to check |
|---|---|---|
| Part not on the truck | The diagnosis is right but the repair can't finish | Share of return trips coded "parts", and which parts |
| Incomplete diagnosis | The obvious fault is fixed, the root cause is not | Returns within days on the same equipment |
| Thin booking information | The wrong tech, skill or parts get sent | Compare intake notes with what the tech found |
| Skill mismatch | A tech gets a job type they rarely do | Rate by tech and job type |
| Customer approval delays | A large repair needs a decision or financing | Jobs paused on site waiting for approval |
Parts are usually the biggest bucket, and they are also the cheapest to fix. A truck stock list built from what techs actually used, refilled to a set minimum, removes many of the return trips. See truck stock for how to build one.
What does a return trip cost?
A second visit pays for labor, driving and a lost slot. Using public figures, an example return trip of 1.5 hours and 20 miles costs about $88.72 before the lost slot:
- Labor: private-industry employers paid $49.01 per hour worked in total compensation for installation, maintenance and repair occupations in June 2026.1 1.5 hours × $49.01 = $73.52.
- Vehicle: the IRS business mileage rate is 76 cents a mile from July 1, 2026.2 20 miles × $0.76 = $15.20.
- Drive time is paid time: under federal rules, travel from job site to job site during the workday counts as hours worked.3
The bigger cost is the slot a paying customer could have had. For the full breakdown, read the real cost of a callback.
First-time fix rate vs callback rate
| First-time fix rate | Callback rate | |
|---|---|---|
| Question it answers | Did the first visit finish the job? | Did a finished job come back? |
| Typical cause when it's poor | Missing parts, booking information, diagnosis | Workmanship, root cause missed, failed part |
| Who usually owns the fix | Office, inventory and the tech | The tech and training |
| Planned return for an ordered part | Counts against it | Not a callback |
| Job fails a week after closing | Should not count as a fix | Counts as a callback |
Track both together. A shop can raise first-time fix rate by closing jobs too fast, and the callback rate is what catches it.
How first-time fix rate shows up in TradesWork
In TradesWork, first-time fix is one of the quality metrics on the technician coaching scorecard. It is scored from a floor of 60% to a target of 95%, and points for a first-time fix wait until the 30-day callback window has closed clean, so a repair that comes back never earns credit. Those are default scoring settings, not industry benchmarks.
On the parts side, truck inventory keeps a min and max per item on each truck and takes materials off the truck when the tech invoices them, so restock follows real usage.
A first-time fix routine
- Define which job types count, and leave out maintenance and planned multi-visit work
- Tag every return trip with a reason: parts, diagnosis, booking information, approval, other
- Review the rate by job type and by tech monthly, not the blended number alone
- Turn the top three parts reasons into truck stock changes
- Credit a fix only after your callback window closes
- Pair the number with callback rate on the same report
For a deeper look at the four drivers and what a few points are worth, read our article on first-time fix rate.
Footnotes
-
Employer Costs for Employee Compensation, June 2026, Table 4, U.S. Bureau of Labor Statistics. Private industry, installation, maintenance and repair occupations: $49.01 total compensation, $33.61 wages and salaries. ↩
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Standard mileage rates, Internal Revenue Service: 72.5 cents a mile for January 1 to June 30, 2026, and 76 cents a mile from July 1, 2026. ↩
-
29 CFR 785.38, Travel that is all in the day's work, Code of Federal Regulations, via Cornell Legal Information Institute. ↩
