Contractor / home repair demand letter
By Justin Winter · Updated August 22, 2026
The short answer
Many states expect a written demand before a licensing complaint or a mechanic's lien dispute. Send it Certified with electronic Return Receipt, $14.99 all-in: USPS records when it was mailed and when it was signed for. Preview the exact pages free. Rules vary by state; this template is not legal advice.
The math
The math on one certified letter.
| Option | Cost | Your time |
|---|---|---|
| paperplane, Certified + Return Receipt | $14.99, all in | About two minutes |
| At the counter | USPS fees, plus printing, an envelope and the trip | About ten minutes at the counter, plus the drive and the line |
USPS charges the same fees whoever hands the letter over. The difference is the trip, the form and the slip you keep for a year.
Incomplete or defective contractor work is its own fact pattern, not just a generic dispute over money owed. There is usually a signed agreement or written estimate, a scope of work that was only partly finished (or finished in a way that does not hold up), and a contractor who has stopped returning calls or keeps pushing the completion date back. A letter for this situation needs to do something a phone call cannot: put the project address, the contract date, the specific defect or missing item, and a real deadline to fix it — all in one dated document the contractor cannot later claim they never received.
That distinction matters because most states treat a written demand as a checkbox before the next step. If the contractor is licensed, a state contractor licensing board typically wants to see that you gave the contractor written notice and a reasonable chance to correct the work before you file a complaint against their license. If the dispute is heading toward a mechanic's lien fight — the contractor filed one, or you are disputing an invoice tied to one — the paper trail of when you notified them, and what you said, can matter for the timeline the lien statute runs on. Either way, a demand letter that goes out by regular mail leaves you with no way to prove the contractor got it, or when.
What certified mail adds here
Sending the letter Certified Mail with electronic Return Receipt gives you two things a text message or a certified letter you dropped off yourself does not: a USPS tracking record showing exactly when the letter was delivered, and an electronic receipt confirming who signed for it. If the dispute later goes in front of a licensing board, an arbitrator, or a small claims judge, that record answers the first question they tend to ask — did you actually put this in writing and give the contractor a chance to respond. Without it, the dispute is often just your word against theirs about whether notice was ever given.
How it works
- Open the template and fill in the project address, the contract date, and exactly what work is incomplete or defective.
- State what you want — completion, correction, or a specific refund amount — and a real deadline.
- Pay $14.99 (Certified Mail + electronic Return Receipt) — we typeset and mail it the next business day.
- Keep the delivery confirmation; it is the record a licensing board or small claims court will likely ask about if this escalates.
This template is a starting point, not legal advice. Contractor licensing complaint procedures, notice requirements before filing a mechanic's lien claim, and applicable deadlines all vary by state — check your state contractor licensing board's website, or talk to a local attorney, before relying on this letter as your sole step.
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Questions before you send
Why not go to the post office myself?
You can, and if your time is free it costs less. USPS charges the same fees whoever hands the letter over; paperplane does not replace the post office, it replaces the trip. The mailing record comes from USPS, not from us. $12.99 covers the printing, the envelope, PS Form 3800, a USPS address check before you pay and a handoff the next business day. For a letter you already know how to send, the counter is a fine choice.
What if they refuse the letter?
USPS tracking records what happened to it, including refused or unclaimed. You still have the mailing record. Rules on what that means vary, so check with your court or an attorney if a deadline depends on it.
If something goes wrong, do I pay?
If we cannot mail the letter, the hold on your card is released and you are not charged. If a letter fails after your card is charged, you are refunded automatically and in full.
Why does a contractor demand letter need certified mail?
A dated, signed delivery record shows the contractor was formally notified and given a real chance to fix the problem — often a prerequisite before filing a complaint with a state contractor licensing board or pursuing a lien dispute.
Is this legal advice?
No — it is a template, not legal advice. Contractor licensing complaints, lien rights, and deadlines vary significantly by state.