Can You Sue a Mechanic for a Bad Repair in Massachusetts?

Yes, you can sue a mechanic for a bad repair in Massachusetts, and the cheapest route usually costs between $40 and $150 to file: a claim of $7,000 or less goes to small claims court under M.G.L. c. 218, sec. 21, and the Attorney General’s motor vehicle regulation, 940 CMR 5.05, makes it an unfair or deceptive practice for a repair shop to refuse to fix, promptly and at no charge, work that was not done “in a good and workmanlike manner in accordance with accepted trade standards.” That regulation is issued under the Consumer Protection Act, M.G.L. c. 93A, which is why a mechanic dispute in Massachusetts is rarely just an argument about a bill. A shop that breaks the repair rules can owe your actual damages, two or three times that amount if the violation was willful or knowing, and your reasonable attorney’s fees. Before you sue, though, two practical facts shape everything: the shop has a lien on your car for its proper charges, and a c. 93A claim requires a written demand at least 30 days before you file.

What a Massachusetts Repair Shop Owes You

Most people think of a bad repair as a contract problem: you paid for work and did not get it. That is true, and a breach of contract claim is available. What makes Massachusetts different is that the Attorney General has written the basic duties of a repair shop into a regulation, so a failure to meet them is not only a broken promise but a violation of c. 93A. The regulation, 940 CMR 5.05, lists twelve rules. These are the ones that come up most in disputes.

The shop must write things down before it starts. Under 5.05(2), before commencing repairs the shop must record your name, address and phone number, the date and approximate time the car was dropped off, the year, make and registration number, the odometer reading, and either the specific repairs you asked for or a brief description of the problem that brought you in.

The shop cannot charge for work you did not authorize. Under 5.05(3), a shop may charge you only if it has your signed written authorization listing the specific repairs and the total price, or your signed authorization of specific repairs where the prices are clearly posted, or, when the repairs were not known at drop-off, it told you the specific repairs and total price and got your authorization before starting. The alternative is a signed waiver in a set form, with a dollar limit you write in, signed separately from the rest of the repair order.

The shop must call before going over. Under 5.05(7), if the shop finds the car needs other repairs, or the price will exceed the authorized or posted price by more than $10.00, it must tell you and get your authorization before continuing.

The shop must fix bad work for free. Under 5.05(8), it is an unfair or deceptive practice for a repair shop “to fail to remedy promptly, at no charge to the customer, any repairs performed by it on the customer’s vehicle which were not performed in a good and workmanlike manner in accordance with accepted trade standards.” This is the rule most bad repair cases turn on.

The shop must give you an itemized bill. Under 5.05(9), the final bill must be dated and list the repairs performed, each part by name and number with its price, whether any part was used, reconditioned or rebuilt, the labor hours charged and whether they are actual or flat rate hours, the hourly price, and the totals.

The shop cannot charge for work it did not do. Under 5.05(10), and under 5.05(1)(c) it cannot tell you work was done when it was not. Under 5.05(1)(a) and (b) it also cannot tell you repairs are needed, or that the car is dangerous to drive, when that is not a fact.

The rest of the list covers disclosure of storage charges and diagnosis fees, your right to have replaced parts returned (5.05(4)), records of phone authorizations (5.05(5)), same-day completion unless you agree to a delay (5.05(6)), copies of anything you sign (5.05(11)), and a ban on using your car for anything beyond a test drive or delivery without your written permission (5.05(12)).

Contract Claim Versus Consumer Protection Claim

There are two main ways to frame a bad repair case, and they lead to different money and different deadlines.

Question	Breach of contract claim	Consumer protection claim under c. 93A
What you must show	The shop agreed to do work and did not do it as agreed	The shop broke a rule such as 940 CMR 5.05, and you were harmed
Notice before suing	None required by statute	Written demand at least 30 days before filing, c. 93A, sec. 9(3)
What you can recover	Your actual loss	Actual damages or $25, whichever is greater
Multiplied damages	No	Two to three times if the violation was willful or knowing, or the refusal to settle was in bad faith
Attorney’s fees	Generally not	Reasonable fees and costs if a violation is found, c. 93A, sec. 9(4)
Deadline	Six years, c. 260, sec. 2	Four years, c. 260, sec. 5A

The two are not either-or. A complaint can plead both, and the facts that prove the contract claim (what you authorized, what the bill says, what was actually done) usually prove the c. 93A claim as well.

Answer Capsule

You can sue a Massachusetts mechanic for a bad repair. 940 CMR 5.05(8) requires a repair shop to fix, promptly and at no charge, any repair not performed in a good and workmanlike manner, and breaking that rule is an unfair or deceptive practice under M.G.L. c. 93A. Send a written c. 93A demand at least 30 days before filing. A claim of $7,000 or less can go to small claims court, where the entry fee plus the $10 surcharge totals $40 for claims up to $500, $50 up to $2,000, $100 up to $5,000 and $150 up to $7,000. If the court finds a c. 93A violation, the shop owes actual damages, up to three times that amount for a willful or knowing violation, and reasonable attorney’s fees.

How Much It Costs to Sue a Mechanic

The direct cost depends on which court you use, and for most repair disputes the answer is small claims.

Small claims filing fees. M.G.L. c. 218, sec. 22 sets the entry fee by the size of the claim, and M.G.L. c. 262, sec. 4C adds a $10 surcharge for a small claims action. The totals, which match the District Court fee schedule published on mass.gov, are:

Amount you are claiming	Entry fee	Surcharge	Total to file
$500 or less	$30	$10	$40
$501 to $2,000	$40	$10	$50
$2,001 to $5,000	$90	$10	$100
$5,001 to $7,000	$140	$10	$150

Filing online adds a $7 eFiling fee, according to the court’s own filing page. A reader of the statute will notice that sec. 22 still contains an older sentence with a two-tier $20 and $30 schedule; the four-tier sentence is the one the courts apply, and it is the one on the published fee schedule.

Getting it back. The court’s Small Claims Standards say the winning party should receive actual cash disbursements for filing and service fees, so a successful claimant usually recovers the filing fee as part of the judgment.

The $7,000 ceiling. Small claims is limited to claims of $7,000 or less. The statute has an exception for “property damage caused by a motor vehicle,” which removes the ceiling for crash damage, but a repair dispute is a claim about work done on a car, not damage a car caused, so do not count on that exception for a mechanic case. Section 21 does say an action can be started in small claims even though the court may award double or treble damages, which matters for a c. 93A claim.

Attorney’s fees. Here c. 93A changes the arithmetic. Under sec. 9(4), if the court finds a violation of sec. 2, the claimant “shall” be awarded reasonable attorney’s fees and costs, “irrespective of the amount in controversy.” A $1,500 brake job is not worth hiring a lawyer for on its own, but a claim that carries fee shifting can be. There is a limit: fees incurred after you reject a reasonable written settlement offer made within 30 days of your demand are not recoverable.

Step by Step: Suing a Mechanic for a Bad Repair

1. Collect the paper. Get the written repair order, any estimate, the authorization or waiver you signed, and the final itemized bill. Under 5.05(11) the shop must give you a copy of any document you signed.
2. Ask for the replaced parts. Under 5.05(4) the shop must tell you about your right to have replaced parts returned. A part that was supposedly replaced but comes back looking new, or never comes back, is evidence.
3. Give the shop the chance to redo the work, in writing. 5.05(8) requires the shop to remedy bad work promptly and at no charge. Put the request in an email or letter, describe the problem, and keep a copy. If the shop refuses or the second attempt fails, that refusal is part of your claim.
4. Get a second opinion in writing. Another shop’s written diagnosis and estimate is usually the best evidence of what went wrong and what it costs to fix. Ask the second shop to note what it found and why.
5. Photograph and keep records. Photos of the problem, the dashboard warning lights, the odometer, and any leak or damage, plus a log of dates, calls and who you spoke with.
6. Send the c. 93A demand letter. At least 30 days before filing, mail or deliver a written demand that identifies you and reasonably describes the unfair or deceptive practice and the harm, as c. 93A, sec. 9(3) requires. How to write one is covered in the Massachusetts 93A demand letter guide.
7. Weigh any offer. If the shop makes a written settlement offer within 30 days and you reject it, the court can limit your recovery to the offer if it finds the offer reasonable. A reasonable offer deserves a careful look.
8. File. For $7,000 or less, file a small claim in the District Court or Boston Municipal Court for the judicial district where you or the shop lives or has a usual place of business. Larger claims go to the District or Superior Court as an ordinary civil action.

The Shop Can Keep Your Car

This is the trap that catches people in the middle of a dispute. Under M.G.L. c. 255, sec. 25, people “engaged in performing work upon or in connection with the inspection, reconditioning and repairing of motor vehicles shall have a lien upon such motor vehicles for proper charges due them for the storage, work and care of the same.” In plain terms, a shop that is owed proper charges can hold the car until it is paid.

The lien does not disappear if the customer gets the car back by trickery or with a check that bounces; the same section says the lien continues and can still be enforced. Stopping payment on a check after driving away is therefore not a way out of the dispute, and it can make things worse.

The lien is not unlimited either. It covers “proper charges,” and a charge the shop was not entitled to make under 940 CMR 5.05, such as work you never authorized under 5.05(3), is a strong argument that the charge is not proper. To actually sell a car to satisfy a lien, c. 255, sec. 26 requires a written demand, the debt to stay unpaid for 10 days after the demand, and then a civil action asking a court to order the sale.

The practical answer many people reach is to pay the disputed amount to get the car back, say in writing at the time that the payment is under protest and why, and then pursue the overcharge through the demand letter and small claims. That keeps the car on the road while the argument happens on paper.

When a Bad Repair Causes a Crash

Most bad repair cases are about money: a repair that did not fix the problem, a bill that was padded, or work that was never done. A smaller group is about safety. Brakes that fail after a brake job, a wheel that comes off after a tire change, or steering work that lets go on the highway can cause a crash and an injury.

That changes the case. An injury caused by negligent repair work is a personal injury claim in tort, and M.G.L. c. 260, sec. 2A gives three years from the injury to bring it. Your own Personal Injury Protection still pays first for medical bills and lost wages after a Massachusetts crash, and the repair shop’s liability is pursued separately. The evidence that matters most is the car itself and the parts: do not let the car be repaired, scrapped or released to an insurer’s salvage yard before the failed part has been preserved and photographed. If someone else was hurt, the same applies to their claim.

For a crash that a mechanical failure may have caused, the questions are different enough that it is worth a conversation early. Call Jim Glaser Law at (617) JIM-WINS. The line is answered 24 hours a day, and the first telephone consultation is free. Personal injury matters are handled on a contingency fee, meaning no attorney fee unless there is a recovery; costs and expenses are handled separately and are explained in the fee agreement before anything is signed.

Deadlines That Apply

Three limitation periods can apply to the same bad repair, and they run from when the claim accrues.

• Consumer protection, four years. M.G.L. c. 260, sec. 5A applies to actions for violations of consumer protection laws, and names c. 93A expressly.
• Contract, six years. M.G.L. c. 260, sec. 2 applies to ordinary contract actions, other than those to recover for personal injuries.
• Personal injury, three years. M.G.L. c. 260, sec. 2A applies to tort actions and to contract actions to recover for personal injuries.

The shortest one that applies to your facts is the one to plan around, and the 30-day demand period comes out of that time, not on top of it. A wider list is in the Massachusetts statute of limitations by claim type.

Key terms

• 940 CMR 5.05: the Attorney General’s regulation listing the duties of motor vehicle repair shops, issued under c. 93A, sec. 2(c).
• Good and workmanlike manner: the standard in 5.05(8); work done to accepted trade standards, which the shop must redo at no charge if it falls short.
• Chapter 93A demand letter: the written demand for relief that must be mailed or delivered at least 30 days before a consumer protection suit.
• Multiple damages: two or three times actual damages, available under c. 93A, sec. 9(3) for a willful or knowing violation or a bad-faith refusal to settle.
• Garage keeper’s lien: the repairer’s right under c. 255, sec. 25 to hold a vehicle for proper charges for work, storage and care.
• Small claims: the simplified District Court and Boston Municipal Court procedure for claims of $7,000 or less under c. 218, sec. 21.

Related Reading

A bad repair after a crash is often paid for, at least in part, by an insurer, which raises its own questions; see how property damage claims work after a crash and dealing with the insurance adjuster. If the problem started with a car you were test driving at a dealership, see who pays for a crash during a test drive. For the broader picture of crash claims, see auto accidents in Massachusetts.

Frequently Asked Questions

Q: Can I sue a mechanic for a bad repair in Massachusetts?

A: Yes. You can bring a breach of contract claim, and in most cases a consumer protection claim under M.G.L. c. 93A as well, because the Attorney General’s regulation 940 CMR 5.05(8) makes it an unfair or deceptive practice for a repair shop to fail to remedy promptly, at no charge, any repair that was not done in a good and workmanlike manner. A claim of $7,000 or less can go to small claims court.

Q: How much does it cost to sue a mechanic in small claims court?

A: The filing cost is the entry fee in M.G.L. c. 218, sec. 22 plus the $10 surcharge in c. 262, sec. 4C: $40 for a claim of $500 or less, $50 for $501 to $2,000, $100 for $2,001 to $5,000, and $150 for $5,001 to $7,000. Filing online adds a $7 eFiling fee. The court’s standards say the winning party should get back actual cash spent on filing and service fees.

Q: Is a mechanic liable for damage caused by a bad repair?

A: A shop that does not do the work in a good and workmanlike manner must fix it at no charge under 940 CMR 5.05(8), and if it does not, the customer can recover actual damages under c. 93A, with two to three times that amount for a willful or knowing violation. If the bad repair causes a crash and an injury, that is a personal injury claim in tort, which has a three year deadline under M.G.L. c. 260, sec. 2A.

Q: Can a mechanic keep my car if I refuse to pay?

A: Usually, for proper charges. M.G.L. c. 255, sec. 25 gives repairers a lien on the vehicle for proper charges for work, storage and care, and the lien survives a bounced check or a car taken by trick. Charges the shop was not entitled to make, such as unauthorized work under 940 CMR 5.05(3), are not proper charges. Many people pay under written protest to get the car back and then pursue the overcharge.

Q: Can a mechanic charge more than the estimate?

A: Not by more than $10.00 without asking. Under 940 CMR 5.05(7), if the price will exceed the price you authorized, or the posted price, by more than $10.00, or if the car needs repairs you did not authorize, the shop must tell you and get your authorization before continuing. Under 5.05(3), it cannot charge for repairs at all without the required authorization or a signed waiver.

Q: Do I have to send a demand letter before suing a mechanic?

A: For a c. 93A claim, yes. Section 9(3) requires a written demand for relief, identifying you and reasonably describing the unfair or deceptive practice and your injury, at least 30 days before filing. If the shop makes a written settlement offer within those 30 days and you reject it, the court can limit your recovery to that offer if it finds the offer was reasonable.

Q: How long do I have to sue a mechanic in Massachusetts?

A: Four years for a c. 93A claim under M.G.L. c. 260, sec. 5A, six years for a contract claim under c. 260, sec. 2, and three years for a personal injury claim under c. 260, sec. 2A. The period runs from when the claim accrues, and the 30-day demand period comes out of it.

Q: Is Jimmy Knows AI giving me legal advice?

A: No. This is general information about Massachusetts law, not legal advice, and reading it does not create an attorney client relationship. Whether any of it applies to your situation depends on facts a lawyer would need to review. For advice about your own matter, speak with a licensed Massachusetts attorney.