How to Sue a Contractor in Massachusetts Small Claims Court

You paid a contractor a deposit, they started late or never showed up, and now they are not returning your calls. Or the work was done so badly you had to pay someone else to fix it. Either way, you are out money and the contractor is not making it right.

Massachusetts small claims court handles disputes up to $7,000 — which covers most residential contractor deposits and repair cost overruns. Here is how to go after the money.

Step 1: Identify the Correct Legal Entity

This is where most contractor lawsuits go wrong before they even get filed. You need the contractor's exact legal name on your Statement of Small Claim, and "Mike's Plumbing" might not be it.

Sole proprietors must be sued under their personal name plus their trade name — "Michael Smith d/b/a Mike's Plumbing." Check the municipal clerk's Business Certificate (DBA) filings in the city or town where the contractor operates.

LLCs and corporations must be sued under their exact registered name with the Secretary of the Commonwealth's Corporations Division. Search the SOC database for the entity name and registered agent address. Use the registered agent's address as the service address; the clerk handles the initial small-claims notice.

Getting the name wrong can result in an unenforceable judgment or a dismissal.

Step 2: Send a Demand Letter

A written demand letter is standard practice and shows the court you tried to resolve the dispute first. State the amount owed, what the contractor failed to do (or did wrong), and give a reasonable deadline — typically 14 to 30 days.

If you believe the contractor's conduct qualifies as unfair or deceptive under Chapter 93A (the Massachusetts Consumer Protection Act), you must serve a formal 30-day demand letter at least 30 days before filing. Without it, you lose the right to seek double or triple damages and attorney's fees. The demand must describe the unfair act, your injury, and your monetary loss.

Keep proof that you sent it — certified mail with return receipt is the cleanest option, though regular mail with a tracking number also works for a standard demand.

Step 3: File Your Claim

File at the District Court or Boston Municipal Court division where either you or the contractor lives, works, or maintains a place of business. Filing fees range from $40 to $150 based on your claim amount, plus $7 if you use the Tyler Guide & File interview.

On the Statement of Small Claim form, describe the dispute factually: the date of the contract, the deposit amount, what work was promised, what was actually done (or not done), and the dollar amount you are seeking.

Step 4: Build Your Evidence Package

Contractor disputes are document-heavy cases. Gather:

• The written contract, proposal, or estimate (if you only have a text message agreement, print those messages)
• Proof of payment — canceled checks, bank transfers, Venmo/Zelle receipts
• Photographs of incomplete or defective work, dated if possible
• An estimate or invoice from the second contractor you hired to complete or fix the job
• All communication with the original contractor — emails, texts, voicemails
• Any Home Improvement Contractor registration number or related records the contractor provided

Organize everything chronologically. Bring three copies: one for the clerk-magistrate, one for the contractor, and one for yourself.

Step 5: Present Your Case

At the hearing, walk the clerk-magistrate through the timeline: contract date, payment date, when work was supposed to start, what happened (or did not happen), your demand letter, and the response (or silence). Then present your base damages — the deposit amount, plus any additional costs you incurred to complete the work elsewhere. The standard $7,000 limit applies to the base claim; statutory multiple damages or fees can increase a final judgment.

Stay factual. "I paid $4,000 for a kitchen renovation, no work was performed, here is the contract and the bank transfer" is more effective than a narrative about how frustrated you are.

The Massachusetts small claims filing guide includes a demand letter tracker, evidence binder template, and step-by-step hearing prep — all built for cases exactly like this.

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