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Where to send your Monitronics Security cancellation letter

Read the addresses on this page next to the full guide to cancelling Monitronics Security.

The addresses we hold

This page shows every mailing address we hold for Monitronics Security, starting with the one a cancellation letter should go to in Glendale, 91208, and how to address the envelope so it arrives without a query.

Where the letter goesMailing address

Monitronics Security3450 N Verdugo RdGlendale, CA 91208

California, ZIP 91208: where mail for Monitronics Security is delivered.

How to address the envelope

  1. Use the address letter for letter

    The envelope reads 3450 N Verdugo Rd, Glendale, CA 91208. Match the spacing and the box or street line exactly as printed.

  2. Put your own address on it

    Your name and postal address go top-left on the front (or the back flap). If the letter cannot be delivered it comes back to you, which is itself evidence of the attempt.

  3. Buy the certified service

    Certified, not courier: buy it at the counter, keep the postmarked slip, and the letter to Glendale is traceable from the article number until it is signed for.

  4. Keep the records

    The postmarked receipt, the tracking record and your signed copy of the letter are the set that proves the request.

Your letter to Monitronics Security

The letter below asks Monitronics Security to end the account, stop further charges and confirm in writing. Put the account or subscription number, the email the plan was bought with and the address or devices it covers in the bracketed places.

Sample cancellation letter

[Your name] [Your street address] [City, State ZIP] [Your email address]

[Date]

Monitronics Security 3450 N Verdugo Rd Glendale, CA 91208

To whom it may concern,

I am cancelling my account with Monitronics Security, account or member number [number], with effect from [date or "immediately"]. Please end every add-on and linked plan on this account at the same time.

Please stop all future charges to my payment method, remove my stored payment details, and send written confirmation of the cancellation and its effective date to [your email address].

Sincerely, [Signature] [Your printed name]

Let Postbye cancel Monitronics Security for you

We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.

Cancel Monitronics Security