Timely response and very good monthly rate. I switched from ADT to Mountain Alarm at approx. 1/2 the monthly rate and no switchover cost. Service was prompt and very courteous and they have a local office if I ever need them. The only minor glitch was I haven't yet received an e-mail confirming my no-rate-increase-for-three-years guarantee.

Horrible service Horrible service. Billings Alarm sold to them and Mt Alarm who has not even looked up the definition of "CUSTOMER SERVICE" so that they could provide it is not someone I would recommend. They are attempting to make everyone sign a long term contract. They are rude and pushy and accepted $ even though I hadn't signed a contract, yet they are telling me they will terminate it. Not one to be bullied. Run away and don't give them your business.

Natural born skeptic is a believer in Montain Alarm We hoped for the best with our first alarm service they exceeded that hope every step of the way That is the salesman was polite, professional, and knowledgeable. The installer was timely and competent follow up service calls we made to the alarm center were handled patiently as we worked our way through learning the system. They get my stamp of approval.

I have no opinion I don't know yet--haven't had anyone trying to break-in

Agressive money collection for unknown service Very poor customer service, very aggressive money collecting policy. Will tell you you owe them money for alarm service that you did not know you had and will immediately collect the money by threatening letter and a collection fee on top of that. Cannot recommend.