Customer Won't Pay the Mechanic? Liens, Small Claims, and How Mobile Techs Avoid It

Updated 2026-10-17. Sources are listed at the end.

A shop holding a car has leverage: no payment, no keys. A mobile mechanic finishing a job in the customer’s driveway usually has none. The car is already in their possession. That one difference shapes everything about how mobile techs should get paid.

How a mechanic’s lien works: Texas as an example

Texas is a good example of a statutory repair lien. It spells it out in Property Code chapter 70 (Tex. Prop. Code ch. 70):

• Possession. A worker who repairs a vehicle has a lien and may keep possession until paid the amount due under the contract, or the reasonable charge if there’s no agreed amount (§ 70.001).
• Giving the car back usually ends the leverage. Under § 70.001, if you give up possession, the lien generally doesn’t follow the car. There is one narrow exception: if the customer pays with a check that bounces or a card payment that’s stopped, you may be able to repossess the vehicle, but only if the customer signed a notice, conspicuous on the work order, that says so.
• Selling an unclaimed vehicle requires notice and a process, including a county filing, and a waiting period before sale (§ 70.006). In a suit over possession of the vehicle and the debt, the court may award attorney’s fees to the winner (§ 70.008).

Other states’ lien laws differ in the details, so read your own state’s statute or ask a local attorney before relying on a lien.

Why mobile techs usually don’t have that lien

The Texas lien is built on possession. If you fix the car where it’s parked and drive away, you never had possession in the usual sense. You’re left with a debt to collect, not a car to hold. So the defense for a mobile business is to collect before the keys stop mattering:

1. Deposit for parts. Take payment for special-order or expensive parts when the customer approves the estimate.
2. Pay on completion, before you leave. Take a card in person: it’s cheaper than invoicing too (see card processing fees).
3. Signed estimate and change orders. If a customer later disputes the bill, your best evidence is their signature on the estimate and each approved addition. See what must be on an estimate and invoice.
4. Texas techs: if you accept checks or cards and want the bounced-payment repossession right, put the notice on the work order and get it signed. Read § 70.001 for the exact requirements.
5. Fleet and business accounts: use written terms (net-15 or net-30) and a credit application. See fleet maintenance accounts.

When they still don’t pay: small claims

Sources: Texas State Law Library; California Courts Self-Help.

Before filing, send a polite final invoice with a due date, and keep a copy. It’s good evidence, and many customers pay at that point. Bring the signed estimate, the invoice, photos, texts and your payment records to court.

Write a payment policy and put it on every estimate

A short policy prevents most disputes:

Payment is due when the work is completed, before the technician leaves. Special-order parts require a deposit of [X]%. We accept card, ACH and cash. Fleet accounts are billed under their signed account terms.

Add your trip or service-call fee to the same policy so it’s never a surprise. Put the cost of bad debt into your overhead in the labor rate & break-even calculator. Even a few unpaid jobs a year raises your break-even rate.

Related

• How to price mobile mechanic jobs
• LLC vs sole proprietor
• Mobile mechanic diagnostic fee

Sources

• Texas Property Code, Chapter 70 (Worker’s lien): https://statutes.capitol.texas.gov/Docs/PR/htm/PR.70.htm
• Texas State Law Library, Small claims maximum: https://www.sll.texas.gov/faqs/small-claims-maximum
• California Courts Self-Help, Small claims in California: https://selfhelp.courts.ca.gov/small-claims-california