6 Best Alarm & Security Installers in Hemel Hempstead for 2026

🚨 6 businesses · 📍 Hemel Hempstead
✓ Reviewed regularly · ✓ Updated 7 September 2026
Mark Reid
Written by Mark Reid, Trades Editor · Verified 7 September 2026
Hemel Hempstead's mix of housing makes for varied security needs. You've got the older terraces around Boxmoor and Bennetts End with narrow hallways and dated wiring, newer estates out towards Adeyfield and Grovehill built to modern regs, and plenty of detached family homes in Chaulden and Warners End with detached garages and side access that need thinking about separately. A decent installer will know the difference between fitting a wireless system into a 1930s semi and running cabled sensors through a new-build with cavity walls, and pricing reflects that. Flats above the shops in the town centre often need different approaches again, particularly around communal entry systems and shared access points.
How We Select & Rate The Best Alarm & Security Installers in Hemel Hempstead

Rankings are driven by review rating and review count pulled from public business listings, with a small lift given to businesses showing a working website and phone number. We read each business's homepage to confirm alarm and security installation is genuinely what they do, which keeps unrelated trades off this page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone through our full verification process, covering trade qualifications, insurance, trading history, customer review history and registered company details (see our How We Verify page for the complete list). Other businesses here haven't been independently verified by us, so do your own checks before hiring.

Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →

Quick Comparison: Alarm & Security Installers in Hemel Hempstead

Our Top Picks

1
Safe & Sound Motorcycle Alarms
Not Verified
★★★★★ 5.0 (56 reviews)
Hemel Hempstead 01442 235591

Hemel Hempstead riders use Safe & Sound Motorcycle Alarms for alarm and tracker fitting on motorcycles and scooters. The firm has built a reputation locally for careful, bike-specific installation work, reflected in a five star rating from 56 reviews. Details can be found via their website for those wanting fitting options explained beforehand.

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2
Herts Security Systems Ltd
Not Verified
★★★★★ 5.0 (48 reviews)
Hemel Hempstead 01442 383169

Hemel Hempstead and the surrounding Hertfordshire area fall within reach of Herts Security Systems Ltd, which installs alarm and CCTV systems for homes and businesses. Its work has drawn a full five-star rating across 48 Google reviews, a consistency that reflects steady, well-regarded fitting and servicing rather than one-off jobs.

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3
Wrights Solutions
Not Verified
★★★★★ 5.0 (34 reviews)
Hemel Hempstead 0808 303 0695

A perfect 5 from 34 reviews sets Wrights Solutions apart among alarm and security installers serving Hemel Hempstead. The company fits and maintains intruder alarms and CCTV systems for homes and businesses across the area. Consistent feedback points to reliable workmanship rather than one-off satisfaction.

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4
Loden Ltd
Not Verified
★★★★★ 5.0 (6 reviews)
Hemel Hempstead 0330 133 1666

Families in Hemel Hempstead and the surrounding HP3 area turn to Loden Ltd for alarm and security system installation. The firm has built a small but consistent reputation locally, holding a five star average from six reviews. Work covers fitting and setting up systems designed to give households peace of mind at home.

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5
iDiS
Not Verified
★★★★★ 4.6 (10 reviews)
Hemel Hempstead 0800 121 4877

Families and small businesses around Hemel Hempstead call on iDiS for alarm and security system installations, from initial setup to ongoing maintenance. The company has built a 4.6 rating from local customers, a modest but consistent record given the compact number of reviews. Its focus stays on residential and commercial premises within the surrounding HP postcode area.

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6
RL Security Solutions Ltd
Not Verified
★★★★★ 5.0 (5 reviews)
Hemel Hempstead 01442 913153

Older houses and commercial units around Hemel Hempstead make up much of the workload for RL Security Solutions Ltd, with alarm systems fitted to suit properties that weren't originally wired for modern security. Jobs range from single dwellings to larger business premises. Five reviews on Google, all five stars, reflect the consistency of that work.

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Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →

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Frequently Asked Questions

How much does an alarm & security installer cost in Hemel Hempstead?
A basic wireless burglar alarm for a two or three-bed terrace typically runs from £250 to £500 fitted, while a wired system for a larger detached house can climb to £800 or more depending on how many zones and sensors you need. CCTV setups vary hugely too, a couple of cameras covering the front and back of a semi might cost £300 to £600, whereas a fuller system with recording equipment for a larger property could hit £1,200 or beyond. Monitored alarms with a call centre connection add an ongoing monthly fee, usually £15 to £30. Always get two or three quotes, as prices for the same job can differ by a few hundred pounds between installers.
Do I need planning permission for CCTV cameras in Hemel Hempstead?
For most homes, no. But if a camera points towards a neighbour's property or a public footpath, there are data protection considerations under UK law, and you should angle cameras to cover only your own boundary where possible. If you live in a listed building or conservation area, such as parts of Old Town, check with Dacorum Borough Council before fixing anything to the exterior brickwork or render.
What's the difference between a monitored and unmonitored alarm system?
An unmonitored alarm sounds a siren and, on some systems, sends an alert to your phone, but nobody else responds. A monitored system connects to a control room that can contact you, your keyholders, or the police if the alarm triggers. Monitored systems cost more upfront and come with a monthly fee, but they're worth considering if you travel a lot or the property is often empty.
How long does it take to fit a home alarm system?
A straightforward wireless system in an average three-bed house usually takes half a day to a day. Wired systems take longer, often a full day or two, especially in older properties where cabling has to be run discreetly through walls and under floors. If you're combining an alarm with CCTV or smart locks, budget for two days and check this with your installer upfront so you're not caught out.
Can I get a discount on my home insurance for having an alarm fitted?
Many insurers offer a small reduction if you have a monitored alarm system installed to a recognised standard, sometimes referred to as NSI or SSAIB accreditation. It's worth ringing your insurer before booking work to ask exactly what they'll accept, and get written confirmation of the system's specification from your installer afterwards in case you need to prove it later.
What should I check before hiring an alarm & security installer in Hemel Hempstead?
Ask to see evidence of relevant accreditation, such as NSI or SSAIB membership, and confirm they hold public liability insurance, ideally at least £2 million cover. Request examples of recent work in the local area if possible, and ask whether they offer a warranty on parts and labour, most reputable installers will give at least 12 months. Get quotes from a few different companies for the same specification so you're comparing like for like, and check recent customer reviews for comments about reliability and after-sales support, not just installation day. If a business carries a Trust Verified badge on this page, that means our team has already checked qualifications, insurance and trading history, but for anyone without it, these checks are down to you before you sign anything.