How long does it take to write an auto repair estimate?

A clean two-line estimate takes a good advisor somewhere between two and ten minutes. That range comes from shop owners and advisors describing their own counters on recorded calls with us through 2026, where the answers ran from about a minute on a simple job to ten minutes on a five-figure quote. Anyone selling software on the promise of beating that number is selling something you do not need, because a canned job and an experienced writer already handle it.

Key takeaways

• Simple jobs are already fast, and software does not meaningfully improve them.
• Multi-line tickets run longer, and most of the extra is parts research.
• The number nobody measures is how long a finished inspection waits before pricing.
• Findings that never get priced cost more than slow typing ever will.

The honest range

Every figure below describes an advisor writing the estimate by hand at the counter. None of it describes software, ours included.

Shop owners push back on estimating software with the first row, and they are right to. A brake job on a vehicle the shop sees weekly is not a problem. The rest of the table is where the day goes.

Why the long ones are long

Writing is the small part. An advisor pricing a multi-line ticket stops repeatedly to answer questions the labor guide does not settle:

• Which part fits this exact vehicle. Six lug or seven, a mid-year change, a trim-specific caliper that shares a photo with the wrong one.
• Which vendor to buy from today. Price against availability, and the dealer part that will not arrive until Thursday.
• Whether it is already on the shelf. Ordering a part the shop owns, at a worse price than it paid, is a familiar and quiet loss.
• What else the job needs. Coolant, clamps, one-time-use fasteners, the thermostat required on this engine and not that one.

Each detour costs a few minutes and arrives in the middle of a phone call. Enough of them and the estimate that should have been quick is still open when the next customer walks in, and the advisor never sat still long enough to notice.

Labor has its own version of this on jobs where the published time excludes what the vehicle is doing to the technician. Mitchell 1 states that its times leave out diagnosis unless indicated, hazmat disposal, machine operations and the time needed to free parts frozen by rust or corrosion. An advisor pricing a rusted exhaust job in February is exercising judgement, and judgement takes longer than a lookup.

The measurement that matters

Per-estimate speed is the wrong number because it only counts the minutes somebody was typing. Two others tell you more.

Inspection-to-quote time. Timestamp when the technician marks the inspection complete and when the estimate reaches the customer. The gap includes every minute the ticket sat while the advisor was on the phone or walking a customer to their car. Our estimate turnaround checklist walks thirty tickets through this, and most shops find the waiting dwarfs the writing.

Findings-to-lines ratio. Count the findings on the inspection and the priced lines on the estimate. An inspection with six findings that goes out with two priced lines lost four, and nothing in your reporting will ever tell you that happened.

The second number is the expensive one. A finding that was never priced is not a declined job, because the customer was never asked. It leaves no record, shows up in no report, and quietly drags the average repair order down every month.

What the law expects, and how it shapes the clock

The estimate is not only an internal document. California requires a shop to give the customer a written estimated price for labor and parts necessary for a specific job, subject to the exceptions the statute carves out, and no work may be done before the customer authorizes it. Charging above the estimate needs the customer's consent first. The Federal Trade Commission tells consumers to ask for a written estimate as a matter of course.

That has a practical consequence for timing. The estimate has to be good before the work starts, so any speed that arrives by guessing a number is borrowed against a conversation you will have later. Our guide to the auto repair authorization form covers what the written record needs to carry.

What a slow estimate costs past the clock

The minutes are the least of it. A quote that goes out at 4:40pm reaches a customer who is driving home, eating dinner, putting kids to bed. It gets read at nine, approved the next morning if it is approved at all, and the parts order that should have gone in on Tuesday afternoon goes in Wednesday.

Now the vehicle occupies a bay for an extra day, the technician who had capacity Tuesday is booked Wednesday, and the whole ticket ages in work in progress while nobody did anything wrong.

The approval rate moves too. A customer reading a priced, itemized quote an hour after dropping the car off is still in the mindset that brought them in. The same quote arriving the next day competes with whatever else happened to their week, and declined work is easier to decline once the urgency has cooled.

None of that shows up in a report about estimate writing speed, which is why shops rarely connect the two.

When the shop is short an advisor

The arithmetic changes when somebody quits.

One advisor covering a two-advisor counter does not write estimates at half speed. They write the easy ones at full speed and the hard ones never, because the hard ones need forty uninterrupted minutes that do not exist on a counter with one person answering phones. The findings that need research quietly stop getting priced.

That is why a shop can lose an advisor and see average repair order fall without the car count moving. The tickets are still coming in, and the parts of them that required work are going out unpriced.

It also explains a pattern worth watching if you are hiring. The month before a resignation usually looks fine on volume, and the month after looks fine on volume too. The number that moves is what each ticket was worth.

Where the time comes back

A shop that wants estimating time back has three honest options.

Build better canned jobs. The fastest estimate is one the shop already priced. The cost is maintenance, because a library built in 2021 quotes 2021 parts prices until somebody audits it.

Hire. A second advisor adds capacity at the counter and takes phones off the person writing. It also costs a salary, and it does not help the ticket that is slow because a part is hard to identify.

Automate the lookups. This is the part Mechanica does: reading the finished inspection and writing the priced estimate on the repair order, with the published labor time, the shop's own vendors and the shop's markups behind every line. The advisor reviews it. The gain is not on the brake job, it is on the six-finding inspection that would otherwise go out with two lines priced.

None of those is free, and the first one is free-ish and underrated. Measure before you buy anything, including ours.

The canned job trap

Canned jobs are the cheapest speed a shop can buy, and they carry a cost nobody puts on the calendar.

A library built two years ago holds two-year-old parts prices, two-year-old labor assumptions and whatever the shop believed about that job at the time. It still fires instantly, which is the problem. An advisor watching a familiar price appear has no reason to question it, and the shop bills a 2024 number on a 2026 part until somebody runs an audit.

The fast shops we see are the ones that treat the library as inventory: reviewed on a schedule, with a person responsible for it. Our guide to auditing your canned jobs covers the process, and the canned job against labor guide time comparison covers when each one should win.

What to do this week

1. Timestamp thirty tickets from inspection complete to estimate sent.
2. Count findings against priced lines on the same thirty.
3. Ask your advisors which lookup they hate. They already know where the afternoon goes, and it is usually parts.

If inspection-to-quote is under an hour and every finding gets priced, your estimating is not your constraint and you should go fix something else. More on the pricing side of this is on the blog, and where book time comes from covers the labor half of the lookup.