Mobile Mechanic Estimate Template
A mobile mechanic estimate forecasts the price before work starts: 8 lines for replace a failed alternator and battery in the customer's driveway and test the charging system, totalling $760.00, with products the largest share (52%). It states its assumptions and stays valid for 30 days. Edit the lines and download the PDF.
Pre-filled for a mobile mechanic: replace a failed alternator and battery in the customer's driveway and test the charging system. Example prices: replace them with your own.
From
Bluebird Mobile Mechanic
624 Market Street
Madison, WI 53703
billing@example.com
(312) 555-0124
Estimate
Prepared for
Chris Novak
8 Chestnut Lane
Georgetown, TX 78626
client@example.com
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Call-out fee, driveway service | 1 visit | $75.00 | $75.00 |
| Battery and charging system testLoad test, alternator output at idle and 2,000 rpm | 1 each | $45.00 | $45.00 |
| Replace alternatorSerpentine belt removed and reinstalled | 1.5 hr | $110.00 | $165.00 |
| Remanufactured alternator, 1-year warranty | 1 each | $210.00 | $210.00 |
| Alternator core chargeRefunded once the old unit is returned to the supplier | 1 each | $40.00 | $40.00 |
| Group 24F battery, 3-year warranty | 1 each | $185.00 | $185.00 |
| Second parts run to supplierFirst alternator had the wrong pulley | 1 each | $30.00 | $30.00 |
| Old battery recycling | 1 each | $10.00 | $10.00 |
- Subtotal
- $760.00
- Estimate total
- $760.00
Notes
A mobile mechanic estimate should list the repair, each part with its brand or remanufactured status, the labor hours and the call-out fee, and say what happens if the job turns out to need a shop.
Made with Billwise - invoice-pdf-maker-app.web.app
Preview of the PDF. Everything stays in your browser: nothing is uploaded.
Mobile Mechanic estimate at a glance
| Scope estimated | Replace a failed alternator and battery in the customer's driveway and test the charging system |
|---|---|
| Estimate total | $760.00 before tax |
| Valid for | 30 days from the estimate date |
| Deposit | Customers often pay for parts before they are ordered, especially for expensive or non-returnable components. |
| Products (2 lines) | $395.00, 52% |
| Labour (1 line) | $165.00, 22% |
| Fees (3 lines) | $125.00, 16% |
| Priced in | hr |
Estimate breakdown for replace a failed alternator and battery in the customer's driveway and test the charging system
| Item | Type | Est. quantity | Est. amount |
|---|---|---|---|
| Call-out fee, driveway service | Fees | 1 visit | $75.00 |
| Battery and charging system test | Services | 1 each | $45.00 |
| Replace alternator | Labour | 1.5 hr | $165.00 |
| Remanufactured alternator, 1-year warranty | Products | 1 each | $210.00 |
| Alternator core charge | Fees | 1 each | $40.00 |
| Group 24F battery, 3-year warranty | Products | 1 each | $185.00 |
| Second parts run to supplier | Travel | 1 each | $30.00 |
| Old battery recycling | Fees | 1 each | $10.00 |
| Estimated total | $760.00 |
What to write on a mobile mechanic estimate
A mobile mechanic estimate should list the repair, each part with its brand or remanufactured status, the labor hours and the call-out fee, and say what happens if the job turns out to need a shop.
Materials and products are $395.00 of this $760.00 estimate (52%), so say how long those prices hold: supplier prices can move before the job starts.
Charges an hourly labor rate or a flat price per repair plus a call-out fee for driving to the car, with parts sourced and billed for each job.
Assumptions behind each line
Write these next to the 8 lines so the customer sees what the $760.00 depends on.
- Call-out fee, driveway service: a flat $75.00.
- Battery and charging system test: 1 each, $45.00.
- Replace alternator: 1.5 hr at $110.00 per hr ($165.00); extra hr at the same rate.
- Remanufactured alternator, 1-year warranty: 1 each at $210.00 ($210.00); another grade or brand changes this line.
- Alternator core charge: a flat $40.00.
- Group 24F battery, 3-year warranty: 1 each at $185.00 ($185.00); another grade or brand changes this line.
- Second parts run to supplier: 1 each ($30.00), assuming the site at 8 Chestnut Lane.
- Old battery recycling: a flat $10.00.
Changes, overruns and change orders
If the customer adds work, put it on a signed change order first. Here one more hr of "Replace alternator" adds $110.00, or 14.5% of the estimate.
A 10% rise in material prices would add $39.50 to this job, which is why many mobile mechanics limit how long an estimate stays valid.
Tips from mobile auto repair billing
- Record the service address and the exact spot you worked in, such as the driveway or a parking garage level, so if a landlord or HOA objects later the invoice shows the customer chose and approved the location.
- Show core charges on alternators, starters and batteries as their own lines and note whether the old unit went back to the supplier, so the core refund lands on the right job.
- Bill an extra parts run as a separate line when the first part was wrong or unavailable, instead of hiding the second drive inside the labor hours.
- If the car needs a lift or a shop to finish, write down what was done, what remains and your tow recommendation, so the customer pays for the diagnosis without assuming the car is fixed.
Checking the labour rate
U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2024: median hourly wage of Automotive Service Technicians and Mechanics $23.88 (employees, not contractor rates).
The sample's $110.00 per hour for "Replace alternator" is 4.6 times that employee figure; a business rate also has to cover insurance, tools, travel, unbilled admin time and profit.
Turning the mobile mechanic estimate into an invoice
-
Get it approved
Ask Chris Novak to sign or reply in writing to estimate EST-1435.
-
Record the changes
Update quantities to what was actually used across the 8 lines.
-
Switch the document type
Change Estimate to Invoice in the tool; the lines and parties stay.
-
Deduct what was paid
Enter any deposit as amount paid so the balance due is correct.
Frequently asked questions
How do I write a mobile mechanic estimate?
Describe the job (Replace a failed alternator and battery in the customer's driveway and test the charging system), list each line with an estimated quantity and rate, total it ($760.00 in the sample), state how long it is valid and what it assumes, then send it as a PDF for approval.
Is a mobile mechanic estimate binding?
An estimate is a forecast, not a fixed price, so the final invoice can differ when the work or materials change. Rules vary by country and state; to stay safe, get written approval before billing noticeably more than the $760.00 you estimated.
How long should a mobile mechanic estimate be valid?
Thirty days is common and is what this template uses. With 52% of the price in materials, a shorter validity protects you if supplier prices rise.