Intruder Alarms

Protect Your Home with the Best Intruder Alarms in Cambridge

At Dent Security Systems, we take pride in being a family-owned business with over 30 years of experience in installing intruder alarms in Cambridgeshire. Our professional and experienced team of engineers provides 24/7 support 365 days a year to ensure that you and your property are protected at all times.

Whether you need a simple, audible intruder alarm system or a 24-hour fully monitored police calling alarm, we design security solutions that fit your premises and budget. As an independent security provider, we use only the best equipment to ensure your safety. 

Our services include intruder alarm maintenance, upgrades, and repairs. From securing families’ homes to installing cutting-edge security technology in businesses, schools, universities, and biotechnology premises, Dent Security Systems is committed to keeping you and your property safe with our top-notch security solutions. Read more about buying a security system from Dent.

Contact us today to learn more about how we can help protect you and your property.

All our alarms include support and maintenance for the first year.

Stay Safe and Secure with Our Wireless Alarm Systems

Experience the convenience and peace of mind with wireless intruder alarms that are quick to install without the hassle of hiding cables to detectors. At Dent Security Systems, we prioritize your needs and concerns, offering our expert recommendations without any hard sell or jargon. We understand that every intruder alarm system is unique, which is why we provide a free, no-obligation survey to ensure we offer the best solution for your budget. With our affordable prices starting from just £495+VAT for a domestic alarm, you can enjoy reliable security solutions without breaking the bank. 

Mrs H - St Ives

"I just wanted to let you know how impressed I was again this year with your engineer who has been to service our alarm this afternoon. Gavin was friendly, helpful and efficient and completed the service quickly and thoroughly. A thoroughly ‘can do’ approach which is refreshing these days!
Thank you for such good service."

Dr. L-E - Biobridge Ltd

"Please put on record how efficient and helpful Karthick was on his visit here yesterday to set up our alarm system. He was definitely a pleasure to have around and I hope if there is a need for a service person in future he will be able to come out."

Derek P

"Installation & Maintenance has been carried out very efficiently over the years and any problems that have arisen have been resolved very quickly. Based on my experience I have recommended Dents to several friends and neighbours."

Clare W

"We have been with Dent's for 13 years and have always found them professional and friendly. Their product is excellent and we have recommended them to friends."

Francine C

"Extremely helpful in all matters and very professional. Would recommend this company to everyone."

Protect Your Business Against Theft and Disruption with Our Commercial Alarm Systems

Protecting your business from theft and disruption is crucial in today’s world. With our comprehensive security solutions, you can have peace of mind knowing that your business assets are safe and secure. Our advanced solutions provide comprehensive protection against burglaries and break-ins, whilst our wireless intruder alarm systems offer hassle-free installation and comprehensive security.

Trust us to keep your business assets safe and secure. Contact us today to learn more about our commercial alarm systems. Click here to find out about the benefits of buying a system from us. 

NSI Nacoss Gold Certified

As a NSI NACOSS GOLD installer (see our certification), we monitor the performance of all the equipment we use to ensure it is effective, reliable, and in line with our ISO 9001 Quality Management System. The National Security Inspectorate is a nationally trusted hallmark in the security and fire sectors ensuring companies adhere to the industry’s highest technical standards. Choosing an NSI Gold Certified provider like Dent Security means you can enjoy reliable security solutions with minimal disruption, thanks to a false alarm rate approximately half the national average.

We recommend always checking if the company you look at is NSI Gold Certified by checking the NSI website.

Why a NACOSS GOLD Burglar Alarm?

  • Security vetted staff
  • Guaranteed 4 hour response to faults
  • Can be Police monitored 
  • Complies with latest British and European standards
  • 24 hour callout and telephone support
  • Audited standards of workmanship

Police response alarm systems

Our Police connections are made through Emizon, which uses dual-path advanced signalling via IP and Vodafone, providing two links for enhanced security. This is a superior option compared to Redcare’s single telephone line link. With Emizon, we can also remotely interrogate the alarm panel for servicing or diagnostics, ensuring that your security system is always up to date. If you prefer not to have Police connection, we also offer speech diallers that can call your mobile upon alarm activation.

Intruder alarm monitoring station

At Dent Security, we work with EMCS (East Midlands Central Station), the UK’s leading independent Alarm Receiving Centre, to monitor your security systems. With their state-of-the-art control room and rapid response, you can trust that your property and assets are in good hands.

EMCS is renowned for their exceptional customer care, ensuring that you receive the support and assistance you need whenever you need it.

Contact us today to learn more about our advanced security solutions.

Why Dent’s?


Our advice is based on 20 years of experience at the highest level in national security companies. We install the very latest security efficiently and with minimum disruption.


At Dent Security, our central Cambridge headquarters enables us to respond quickly to our clients’ needs. We take pride in offering a personal touch and avoid using call centres, ensuring that you always talk to someone who can help. If you require an engineer, you can trust that we are never too far away.



We install residential and commercial intruder alarm systems to NSI NACOSS GOLD requirements and we are regularly inspected to ensure we maintain these standards. Our staff are comprehensively security vetted so you don’t have to worry about who is on your premises.

Contact us

To talk to someone today call 01223 350038
or email