Writing to your landlord: repairs and security deposits, in a form you can prove

Two letters cover most tenant disputes: the one asking for a repair, and the one demanding a deposit back. Both are only as strong as your proof that the landlord received them. Texts get “lost” and phone calls never happened. A certified letter with a return receipt is the version that survives.

1. Repair request

A written repair request does three things. It puts the landlord on notice, it starts whatever “reasonable time” your state gives the landlord to fix the problem, and it becomes the exhibit if you later withhold rent, repair and deduct, or move out over the condition. Name the problem specifically, say when it started, say what it affects (health, safety, use of a room), and ask for a repair by a date.

Sample — repair request

[Your name]
[Unit address]

[Date]

[Landlord or property manager, as named in your lease]
[Address for notices in the lease]

Re: Request for repair — [unit address]

Dear [Name],

I am writing to request repair of the following condition at my unit: [describe: the bathroom ceiling leaks when the upstairs unit showers; the heater has not worked since date; the front door lock does not latch]. The problem began on or about [date]. I reported it by [phone / text / email] on [dates].

This condition affects [heat / water / safety / use of the room] and needs to be corrected. Please complete the repair by [calendar date], and contact me at [phone / email] to arrange access.

If the repair is not made within a reasonable time, I will consider the remedies available to me under [state] law, including [repair-and-deduct / reporting the condition to the local code enforcement office].

This letter is sent by USPS Certified Mail with return receipt. Photos taken on [date] are enclosed.

Sincerely,

[Your name]

2. Security-deposit demand

After you move out, the landlord has a fixed number of days to return the deposit or send an itemized statement of deductions. When that date passes, or the deductions are not legitimate, a demand letter is the step before small claims — and in some states the letter itself matters, because a landlord who withholds a deposit in bad faith can owe you a penalty on top of the deposit.

Sample — security-deposit demand

[Your name]
[Your new mailing address]

[Date]

[Landlord’s legal name]
[Address]

Re: Return of security deposit — former tenant at [unit address]

Dear [Name],

I rented [unit address] from [move-in date] to [move-out date] and paid a security deposit of $[amount] on [date]. I returned the keys on [date] and provided my forwarding address on [date].

As of today, [the deposit has not been returned and no itemized statement has been received / I received an itemized statement dated ___ that deducts $___ for ___]. [If deductions: These deductions are improper because ______ — normal wear and tear is not chargeable, and the unit was left in the condition shown in the enclosed move-out photos.]

I demand return of $[amount] no later than [calendar date], payable to me at the address above.

If I do not receive it by that date, I will file a claim in small claims court for the deposit, any statutory penalty available under [state] law, and court costs.

This letter is sent by USPS Certified Mail with return receipt.

Sincerely,

[Your name]

Enclosures: move-out photos; copy of lease; [itemized statement, if any]

California deadlines (checked September 2026)

Situation	Rule
Security deposit after move-out	Landlord must return the deposit or send an itemized statement within 21 calendar days after the tenant moves out (Civil Code § 1950.5). Bad-faith retention can add a statutory penalty of up to twice the deposit.
Repair-and-deduct	After written notice of a condition that makes the unit untenantable, a tenant who waits a reasonable time — 30 days is presumed reasonable — may have the repair done and deduct the cost, up to one month’s rent, no more than twice in 12 months (Civil Code § 1942).
Address for notices	Use the address the lease names for notices, or the owner’s or manager’s address that California requires to be disclosed to tenants (Civil Code § 1962).

Other states have their own deposit deadlines (from 14 to 60 days) and repair rules. Your state’s attorney general or court self-help site lists them. Local rent-control ordinances can add more.

Send this letter from the AI you already use

Create your letter with

Each button opens your assistant with the request already written in, Piloxa and its connector address included, and copies the same words to your clipboard in case the assistant opens with an empty box. Nothing is printed or mailed until you read the review page and pay. How to connect your assistant

Draft the letter to your landlord with ChatGPT, Claude, Gemini or any assistant that supports custom connectors, then say:

“Prepare this letter for Certified Mail with return receipt.”

Piloxa is the connector the assistant calls. Its address is https://piloxa.com/mcp. The assistant cannot mail anything: it hands you a review link. You open it, read the exact pages that will be printed, check the recipient, see one total, and authorize with your card. Only then does the letter leave. Afterwards the exact document, its fingerprint, the addresses as printed, what you authorized and paid, and the printer’s acceptance stay together as one record on your Piloxa account, ready to download whenever you need it. USPS tracking and the signature are added to that record as they are reported back, and where nothing has come back yet the record says so rather than leaving a blank.

How to connect your assistant

Status, October 2026: Live mailing is open for letters to any US address. You see the exact letter, the recipient and the total before you pay, and nothing is printed or mailed until you authorize it. Questions: support@piloxa.com.

Common questions

Can I just text or email my landlord?

For everyday matters, yes, and keep the messages. For anything you might have to prove later — a repair the landlord ignored, a deposit demand — send the certified letter as well. Some leases also require notices to be in writing to a specific address.

Should I withhold rent until the repair is done?

Withholding rent has strict conditions and real risk of eviction if done wrong. Send the written notice first, wait the time your state requires, and read your state’s rules on repair-and-deduct and withholding before acting. When in doubt, a local tenant-assistance organization can tell you what applies.

What if my landlord refuses the certified letter?

The Postal Service records the refusal or the unclaimed return. For notice purposes that record shows the letter was properly sent to the right address on that date, which is usually what a court wants to see. Keep the unchanged copy of the letter with it.

Do I need the landlord’s legal name?

Use the name and address the lease gives for notices. If the property is owned by a company, the California Secretary of State business search shows its legal name and registered agent.

Primary sources

California statutory references last reviewed September 9, 2026. Other states and local ordinances use different deadlines and remedies.