Written by Mark Reid,
Trades Editor
Businesses are ranked using review rating and review count from public business listings, with a small lift given to those showing a working website and phone number. We check each homepage to confirm alarm and security installation is their primary trade, and we remove any listing flagged as permanently closed. Businesses marked Trust Verified have additionally passed our full verification, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information; see our How We Verify page for the complete list of checks. Other businesses on this page haven't been independently verified by us, and appearing here isn't an endorsement. Always carry out your own checks before hiring anyone.
| # | Business | Rating | Reviews | Phone | |
|---|---|---|---|---|---|
| 1 | Amberley Security | ⭐ 4.9 | 261 | 023 9270 6020 | View → |
| 2 | D3 Systems Fire and Security Ltd. | ⭐ 5.0 | 23 | 023 9355 3305 | View → |
| 3 | D Squared - Electrical, Fire & security | ⭐ 5.0 | 16 | 023 9307 7952 | View → |
| 4 | Beady Eye Security Ltd | ⭐ 5.0 | 13 | 07538 441674 | View → |
| 5 | I'm Covered 365 Fire & Security Solutions | ⭐ 5.0 | 10 | 0800 677 1122 | View → |
| 6 | LE Electrical Ltd | ⭐ 4.9 | 11 | 023 9310 0260 | View → |
| 7 | Forward Control | ⭐ 5.0 | 8 | 0800 689 0535 | View → |
| 8 | Portsmouth CCTV | ⭐ 5.0 | 7 | 023 9298 6486 | View → |
| 9 | Key Systems | ⭐ 5.0 | 6 | 023 9236 7677 | View → |
| 10 | SafevueCCTV | ⭐ 4.6 | 22 | — | View → |
| 11 | Holt Alarms | ⭐ 4.5 | 8 | 023 9273 0951 | View → |
Our Top Picks
A call to Amberley Security usually starts with a break-in or a near miss, prompting a homeowner in Portsmouth to want cameras, sensors and a monitored alarm fitted properly rather than as an afterthought. The firm handles the survey, installation and setup of these systems, and has built a following locally, reflected in 261 reviews averaging 4.9.
Read more →Fire and security installation work across Portsmouth is handled by D3 Systems, covering alarms, CCTV and related detection equipment for domestic and commercial premises. The firm has built a strong local reputation, reflected in a five-star rating from 23 reviews. Systems are fitted and maintained to suit individual properties rather than a one-size-fits-all approach.
Read more →Much of D Squared's work in Portsmouth involves fire and security fit-outs for commercial units and offices, alongside domestic alarm installations for houses and flats. The firm combines electrical, fire and security disciplines under one roof, useful for buildings needing several systems integrated together. It holds a five star rating from 16 reviews.
Read more →Alarm and CCTV installation across Portsmouth is handled by Beady Eye Security Ltd, covering domestic and commercial properties. The firm has built a record of 13 reviews averaging five stars, reflecting consistent workmanship on system fitting and setup. Its focus stays on practical security measures rather than add-on extras.
Read more →A perfect 5 from ten reviews sets I'm Covered 365 Fire & Security Solutions apart among Portsmouth's alarm and security installers. The firm handles fire and security system installation for homes and businesses across the city, with feedback pointing to consistent reliability rather than one-off satisfaction. Enquiries can be made through the company website.
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Add Your BusinessLE Electrical Ltd provides professional electrical services to customers across Portsmouth from their base on Martin Road. With a 4.9/5 star rating based on 9 verified customer reviews, the company demonstrates consistent quality in their electrical work. Their established presence in the PO3 area makes them a reliable choice for local electrical requirements.
Read more →Families and households across Portsmouth turn to Forward Control for alarm and security system installation, whether protecting a first home or upgrading ageing equipment. The company has built a small but consistent reputation locally, reflected in a five-star rating from eight reviews. Work is arranged directly with clients rather than through call centres, keeping communication straightforward.
Read more →Domestic and commercial CCTV installation forms the core of this Portsmouth firm's work, covering everything from single-camera setups for terraced houses to multi-camera systems for warehouses and shops. The company also handles alarm fitting alongside its camera work, giving customers a single point of contact for both. Its five-star record from seven reviews reflects consistent workmanship across small and larger jobs alike.
Read more →Wireless intruder alarm installation forms the core of Key Systems' work in Portsmouth, alongside CCTV and access control setups for domestic and commercial clients. The firm has built a small but consistent record, holding a five-star rating from six reviews. Based in PO1, it covers homes and businesses across the surrounding area.
Read more →Portsmouth households and businesses use SafevueCCTV for camera and alarm installations covering the PO3 area and surrounding neighbourhoods. The firm has built a 4.6 rating from 22 reviews, reflecting consistent workmanship on both domestic and commercial security setups. Systems are fitted to suit individual properties rather than a one size fits all approach.
Read more →Landlords and letting agents managing rental properties in Portsmouth call on Holt Alarms to fit and maintain intruder alarm systems between tenancies. The firm works around occupied lets and void periods alike, coordinating access with agents rather than tenants directly. Reviews average 4.5 from eight ratings.
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