Ask the Attorney:  If I am making changes to an existing Customer’s alarm system, should I have the customer sign a new contract or what else can I do to document the new equipment?

You can use either a new contract or an addendum. A new contract is especially appealing if you’ve updated your contract and would like the customer to sign the latest version; or if you’d like to lock in the customer to a new contract term.

You could, however, also do an addendum to the customer’s contract.  You will want to reference the Customer’s current contract, note the changes being made, alert the customer that the terms and conditions in the current contract still apply, and have the addendum signed by the customer.  This addendum language could be part of a work order/invoice, or a separate documents. And, as always, ensure you keep a copy of the signed document for future reference.