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3 Alarms Ltd 3Alarms is a family-run business, SSAIB Approved, established since 2004 with offices in Cambridge and Durham. We specialise in burglar alarms and CCTV, offering state-of-the-art systems for businesses and homes. We guarantee you full transparency on pricing - no need for a site survey, no hidden or unexpected charges or call-out fees. Get a quote today, either online or by telephone.

Live operator call-handling and 24/7 engineering online support - 85% of issues fixed over phone. All our burglar alarm and CCTV systems can be controlled via an App enabling you to stay-in control 24/7.
Services
No honest alarm company can guarantee that you will not be burgled - while the most robust alarm system that money can buy can deter/prevent a burglary, the cost versus the risk versus the client's lifestyle requirements will always have to be considered. 3 Alarms have always focused our strategy on the fact it's not our job to catch burglars, but to deter, detect and eject the burglar from your property as quickly as possible.
Since 2016 out of choice we have been using Visonic UK as our main product supplier, we have found they are unmatched in reliability, price and support. We are also registered with them as a Gold installer. Visonic intrusion security products are part of the Security Products business unit of Tyco, the world's largest pure-play fire protection and security company and have been protecting homes in the United Kingdom for more than two decades.
Please, do contact us to discuss all the options that are open to you before you decide; our advice is always free, we also will not be beaten on price on like-for-like specification and response for an approved alarm installation.
Smart Protection System, always connected for only 395 (subject to VAT + 36 months min contract; includes x2 PIRS, x1 door contact, x2 remote controllers, x1 panic & x1 smoke detector). The 3Alarms 24/7 monitored smart protection system uses smart Cam PIR Sensors ensuring rapid response for fire, security and emergency alerts from your business.
Reviews (6)
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Caroline M.
Jun 09, 2022
We have had 3 Alarms for a lot of years, haven't had to contact them but they are there if needed
Lynne G.
Jun 07, 2022
Spoke to Andy today and he was very helpful, talked me through a small problem I had with the app and their service for my mam's alarm system. My Mam is 91 years old and three alarms helps us with a peace of mind and her safety. Thank you.
Amit S.
Nov 18, 2021
Installed a home security system which was tailored for parents needs and usability. Friendly, professional and great after care - would strongly recommend to anyone. Great product and peace of mind!
Amanda Phillips
Jun 20, 2021
Can not fault 3 Alarms Ltd, excellent professional friendly service. Always there when needed at any time. Installation was clean and tidy. Peace of mind knowing you have a quality alarm system at the right price Thank you
Lynsey Ibbetson
Dec 11, 2020
I've had a monitered alarm with 3 Alarms for over 10 years. The service and support has been excellent throughout. Good value and easy monthly payments means the costs are barely noticeable for the peace of mind provided.
Andy Griggs
Nov 30, 2019
A great system giving us exactly what we needed with cameras and monitoring at a competitive price. 3 Alarms professional family business approach from the start gave them the business and they did exactly what was promised. would recommend every time. Great job 3 Alarms!