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Dent Security Systems

Dent Security Systems

2.9(41 reviews)See reviews ↓·Cambridge

About the company

Dent Security Systems Limited is a family-owned business founded in 1870 by Robert Dent as a locksmith service. The company has been installing intruder alarms in Cambridgeshire for more than 30 years and operates within a 50-mile radius of Cambridge.

It secured NACOSS approval in 1997 and achieved NACOSS Gold accreditation in 2004. Dent Security provides CCTV installation, burglar alarms, access control, intruder alarms, and police response alarms. It offers a free no-obligation survey. The company provides 24-hour callout 365 days a year for alarm maintenance and support.

What customers say

Based on genuine customer reviews

Long-standing local loyalty and dependable maintenance recur most often in accounts of Dent Security Systems, with several reviewers noting they have relied on the Cambridge firm for years or decades. Customers describe punctual attendance and jobs done properly, whether the work involved setting up CCTV for commercial premises or maintaining an alarm at a small garden office. The recurring maintenance visits are repeatedly linked to reassurance, with reviewers saying the regular checks add peace of mind and that a visible alarm outside a property signals genuine protection.

Advice also features in feedback, including help identifying a replacement window lock where earlier tradespeople had struggled and guidance on where to buy the part cheaply. Friendliness and reasonable pricing are mentioned alongside swift, effective installation. A point that comes up often is the company's long-established presence, which some customers say informed their initial decision to instruct the firm.

The service history described spans domestic and commercial settings, from small offices to business premises, with customers returning for years of continued upkeep. Not all accounts are favourable, however; complaints describe false alarms following an expensive installation, a promised updated quote that took weeks to arrive, and difficulty obtaining a satisfactory response when a cut key proved faulty, with communication and follow-through criticised in those cases.

Security system supplier
Dent Security Systems — Customer photo

Reviews

Reviews are taken from publicly available sources.

SB
Sarah Burton17 December 2025

They have some public sector , local goverment contracts that are priority and the bread and butter financialy, so they can pick and choose what ordinary retail customers they can be bothered about, several years ago they were in Financial Dificulty and an Australian Millionaire took over and invested money into this company , trouble is the previous rot and reasons why the business got a bad reputation by senior managers and the way it was run and customers were treated remained un changed, and still the ongoing caurse of no customer service etc. Yes they are knowledgeable and Qualified , its just if they can be Botherd that is the Issue, I see one review in particular refers to thease points.Dont ever upset them as they will become Revengefull , if you report them to the regulatory Dispute organisation, be prepared that I believe the Australian is asociated with that despite resolution organisation, and thats a conflict of interest? So your complaint and dispute resolution will go no where! As I said when they do the job it is professional, its just getting that opertunity in the first place. Yes, Dent locksmiths cambridge and Dent Security, are basically one and the same, as for goverment contracts Dent did display the NHS LOGO on their previous page, way back in 2016? But when I contacted the NHS, and asked for a recommendation about Dents Work,. The NHS replied they could not comment and they don't recognise Dent Security. Soon After the NHS LOGO Disapeared. Probably now its all Private Work, so they maybe right to date.2023. If I remember correctly the manager was Owain? and i believe his Brother also worked there, the CEO at the time was James Bryan Sydney, market Street Fordham Ely, Cambridgeshire. After Owain refused to renew our Service contract because we had several issues, we reported it to the Regulator, Mediator, but we found a different Security firm in due course, the young man who came out to service our system said he was going on his own as self employed ? But we never heard any more from him. I'm sure ours was just a one off experience. Thank you for your reply, obviously I could publish a copy of your website showing the NHS LOGO ? that i have Kept, and Copies of your Emails refusing to Renew our Service Contract etc ? That i still retain in a FOLDER, but let's just let the past sleep , ay 😴 clearly the overall Revuew Ratings Speak for themselves.

BS
Bill Swanson24 March 2023

Initially chose the company based on several recommendations and as they have been around as long as I can remember! Dent set up our CCTV system for our commercial premises. They were fast, effective and we have been using them for years. The regular maintenance really adds peace of mind.

EG
Emma Greenwood23 March 2023

This is without a doubt the best service I have had. Friendly, professional and dependable. They installed our alarm system and we have not looked back since. Highly recommended!

MT
Mr Trick15 September 2020

This shop isn't actually open for walk in business. That's fair enough, but how about putting a notice on your website, so people don't have a wasted trip. No notice on the door either. Go to Hall's on Mill road instead.

ML
Mike Lewis13 September 2018

I telephoned on or about 16 August and was promised an updated quote by the end of the following week (24 August). There was no reply to an email on 20 August and when i visited early one weekday afternoon the shop was locked up and there was no sign of activity. They didn't get back to me until 13 September by which time I had accepted another quote. The thing is if they take that long when I am offering them money how long will it take if I have a problem with a system they install?

DP
Derek Prater22 December 2016

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. (CN15470)

RW
Rob Wick20 December 2016

I have a very small office in my garden, but it has been protected by Dents for a few years now. All has been well and Dents have maintained it every year.

CCTV & alarm installers in Cambridge compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 5 businesses in this category in Cambridge are compared.

RankProviderRatingReviewsOpen Sat.
1CCTV Aerial Services★ 4,9167Yes
2Prestige Fire Safety Limited★ 5,042No
3Hunters Alarm Systems★ 4,977Yes
4Advance Fire & Security Ltd - Cambridge Security Company★ 4,540No
5Dent Security Systems (this page)★ 2,941No
Contact
+441223350038www.dentsecurity.co.uk287 Newmarket Rd, Cambridge CB5 8JE
Working hours
Monday08:30–17:00
Tuesday08:30–17:00
Wednesday08:30–17:00
Thursday08:30–17:00
Friday08:30–17:00
SaturdayClosed
SundayClosed