3 Alarms Ltd
★ 5.00 (19 customer reviews)
Base: CB1 (108, 23 King St, Cambridge, CB1 1AH)

About 3 Alarms Ltd

3 Alarms Ltd is a verified local trade specialist based in Cambridge (CB1), specializing in Security system installation service. Holding a 5 star rating across 19 verified Google customer reviews, they offer professional callout services across the area.

Core Specialities: CCTV, Alarms & Smart Security

Services & Capabilities

  • Security system installation service

Opening & Trading Hours

Open now

Postal Code Districts Covered

3 Alarms Ltd actively provides free quotes and service across these Greater Cambridge postal districts:

Customer Reviews

★ 5.00 (5 verified via Google)
Peter Holland • Cambridge, UK

"3 Alarms were highly recommended by friends and they were so right. From first to (for now) last, working with Andy has been wonderful. He listened to what we were after, designed a spec, installed and explained in a way that was always clear and attuned to our needs. In short he turned what might have been a difficult process into an easy one, at an affordable price and with a flexibility built into the system. Thank you, Andy and 3 Alarms!"

Reviewed on 22 Dec 2025 • Verified Customer (via Google)
Lisa Axford • Cambridge, UK

"Andy and Jackie have always offered a 5 star service for us since we have been with them - we are now on year 8 with 3 Alarms and cannot fault the service Andy has given us year after year. When we got broken into, before we had the system installed, we were looking for an alarmed, monitored system to protect our home. Andy helped us select and fit our alarm system, which has been going strong ever since, and he had always been available at the end of the phone, with any issues we may have had along the way. We would highly recommend 3 alarms if you are looking to protect your home and family."

Reviewed on 27 Nov 2025 • Verified Customer (via Google)
c paddison • Cambridge, UK

"I have to say I can't recommend Andy and 3 Alarms highly enough. The service he provides, and his helpfulness, has been first class. Not something you can say about many companies these days. Always available and quick to give genuinely good advice. Excellent reliable home security. From a great company. Who really do go that extra mile for customers."

Reviewed on 26 Nov 2024 • Verified Customer (via Google)
Emma Hardy • Cambridge, UK

"I've been a customer of 3 Alarms since 2017. Jackie and Andy are lovely to deal with and very professional. They are always at the end of the phone and email if I've had any questions. I'm very pleased with the service I receive. I highly recommend 3 Alarms."

Reviewed on 20 Oct 2023 • Verified Customer (via Google)
S S Awad • Cambridge, UK

"Since we started our contract with 3 Alarms in 2018, they never disappointed us once. Their work and the services they offer have been fantastic. Members of the team, particularly Andy and Jakie, are professional, polite, always ready to help and absolutely delightful. They treat you not only as a valued costumer but also as friend. I would highly recommend 3 Alarms and would like to thank them sincerely. Shahla"

Reviewed on 23 Sep 2022 • Verified Customer (via Google)