Intruder Alarm Systems
BJC Fire & Security Ltd
Protecting Stevenage
Fire Alarm Systems | CCTV Systems | Intruder Alarm Systems | Access Control | Electrical Testing & PAT Testing | Emergency Lighting
What We Do
Intruder Alarms That Stevenage Businesses Trust
We install intruder alarms for commercial and industrial premises, from standard bell-only systems to monitored setups linked to an alarm receiving centre. Over 30 years of doing it right, with NSI Gold certification.
Why choose BJC as your Security System Supplier Stevenage
NSI Gold accredited security and fire protection since 1991
BJC Fire & Security has protected Stevenage homes and businesses since 1991. As an NSI Gold, BAFE, NAPIT and CHAS accredited Security System Supplier Stevenage, we hold the highest independent certification in the UK. Call Dean and the team on 01438 722900.
Five-Star Reviews
Clients rate us for clear demonstrations of how every system works, reasonably priced maintenance contracts and engineers who explain the kit without the jargon.
Reliable Timelines
We agree a clear install date and stick to it. Most fire alarm and CCTV jobs across Stevenage are completed in a short space of time with minimal disruption.
Clear Communication
Dean listens to what you actually want, then explains the options plainly so you can choose with confidence. No pressure, no jargon.
1 Point of Contact
One contact from survey through to sign-off. You deal with the same team who know your building and your system.
Customer reviews
What Stevenage clients say
Stevenage homeowners, facilities managers and commercial clients rate us highly on Google for thorough installs and honest pricing.
★★★★★
“In a short space of time my security is all sorted and works beautifully. Sam took the time to show us how it all worked including the app. I have now signed up for an annual contract of maintenance and it is really reasonably priced.”
★★★★★
“Dean and his team are amazing. Right from the start they listened to what I wanted and explained everything very clearly so that I could choose confidently between the options open to me. Pricing was very competitive.”
★★★★★
“Had a full fire alarm system installed and tested across our building. Engineers were thorough, explained the system clearly, and everything was signed off without any issues.”
About BJC Fire & Security Ltd
Intruder Alarm Systems
BJC Fire & Security was established in 1991 and has spent 30+ years as a trusted Security System Supplier Stevenage. We hold NSI Gold, BAFE, NAPIT and CHAS accreditations, the highest independent certifications for fire and security work in the UK. We cover Stevenage and the wider Hertfordshire area, serving commercial, industrial and domestic clients.
Dean runs every job personally and makes sure you understand exactly what you are getting. He listens first, explains the options, then prices the work competitively. No upselling, just the right system for your property.
NSI Gold Approved
Our engineers turn up when we say they will and finish the job properly. The same faces you meet at survey are the ones installing and maintaining your Stevenage system.
BAFE Approved
Every install meets British Standards and our NAPIT and BAFE accreditations. We are fully insured and our fire and electrical work is signed off and certified.
NAPIT Member
With 30+ years protecting Stevenage properties since 1991, our team brings deep experience across fire, CCTV, intruder and access control systems for every type of site.
CHAS Accredited
We plan the install around your operations, work cleanly and get systems running fast. Most jobs are completed in a short space of time with no fuss.
Intruder Alarm Grading for Stevenage Premises
Insurers usually set a security grade for commercial premises in Stevenage, and that grade decides what detection and monitoring you need. Pharma, aerospace and logistics sites often sit at Grade 3, which means tamper protection and confirmed signalling to an alarm receiving centre. Town centre retail and smaller offices may only need Grade 2. We check your insurance requirements before designing anything so you are not over or under specified.
Dean has fitted graded systems across the Stevenage industrial estates for decades. He knows what local insurers ask for and how to get sign-off without fuss. That keeps your cover valid and your premium fair.
Work We're proud of
Project Gallery
Common questions
Questions about Intruder Alarm Systems in Stevenage
Answers to the questions we are asked most.
How much does an intruder alarm cost in Stevenage?
A standard commercial bell-only system starts around 800 to 1,500 pounds. Monitored and graded systems for larger premises cost more depending on zones and signalling. We survey and give a fixed price.
Do you charge a call-out fee for intruder alarms in Stevenage?
No call-out fee. The survey and quote come free.
What is the difference between a bell-only and a monitored alarm?
A bell-only alarm sounds a siren and relies on someone nearby to respond. A monitored alarm sends a signal to an alarm receiving centre that can call keyholders or the police. Insurers on higher-value sites usually require monitoring.
How long does an intruder alarm take to install?
Most commercial systems are fitted in a day or two. Larger graded systems with more zones take a little longer.
Are your intruder alarms NSI certified?
Yes. We are NSI Gold accredited, which is what most insurers want to see for a commercial alarm. We are also CHAS and NAPIT registered, so the install is certified and documented for your insurer.
Which areas near Stevenage do you cover for intruder alarms?
We cover Stevenage and the surrounding towns including Hitchin, Letchworth, Knebworth, Welwyn Garden City and Hertford. Further afield, give us a call and we will tell you.