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Top 10 Security System Installers in Cardiff (2026)

Ranked by Google rating · updated November 2026 · 15 companies listed

Looking for reliable security system installers in Cardiff? We've ranked the 15 security system installers listed on Leads FM in Cardiff by their Google rating and review count, so the companies below are the ones local customers rate most highly.

Across 722 customer reviews the average rating is 4.3/5; the most-reviewed company has 318 reviews. Every profile includes contact details and a free enquiry form.

#1

KWR Security Systems Ltd

Cardiff · CF24 2RT · Security System Suppliers, Security System Installers
5.0
241 reviews

KWR Security Systems Ltd is rated 5.0/5 from 241 Google reviews and serves Cardiff and the surrounding area. Services include security system suppliers, security system installers.

#2

One 2 C

Cardiff · Security Services, Office Space Rental Agency, Security System Installers
5.0
38 reviews

One 2 C is rated 5.0/5 from 38 Google reviews and serves Cardiff and the surrounding area. Services include security services, office space rental agency, security system installers.

#3

Cardiff Alarm Systems Ltd

Cardiff · CF23 8RU · Security System Installers, Burglar Alarm Store, Fire Alarm Suppliers
5.0
37 reviews

Cardiff Alarm Systems Ltd is rated 5.0/5 from 37 Google reviews and serves Cardiff and the surrounding area. Services include security system installers, burglar alarm store, fire alarm suppliers.

#5

KIAX SECURITY

Cardiff · CF24 2SN · Security Services, Fire Alarm Suppliers, Security System Installers
5.0
15 reviews

KIAX SECURITY is rated 5.0/5 from 15 Google reviews and serves Cardiff and the surrounding area. Services include security services, fire alarm suppliers, security system installers.

#6

Twenty4 Fire & Security

Cardiff · CF14 5GP · Security System Installers, Fire Alarm Suppliers, Fire Protection Consultant
4.9
318 reviews

Twenty4 Fire & Security is rated 4.9/5 from 318 Google reviews and serves Cardiff and the surrounding area. Services include security system installers, fire alarm suppliers, fire protection consultant.

#7

IDS Security Systems Ltd

Cardiff · CF15 7QR · Security Services, Fire Alarm Suppliers, Fire Protection Consultant
4.6
11 reviews

IDS Security Systems Ltd is rated 4.6/5 from 11 Google reviews and serves Cardiff and the surrounding area. Services include security services, fire alarm suppliers, fire protection consultant.

#8

SGD Group Ltd

Cardiff · CF3 2EX · Security Guard Services, Fire Alarm Suppliers, Fire Protection Equipment Suppliers
4.3
3 reviews

SGD Group Ltd is rated 4.3/5 from 3 Google reviews and serves Cardiff and the surrounding area. Services include security guard services, fire alarm suppliers, fire protection equipment suppliers.

#9

Concept Fire & Security Solutions

Cardiff · CF10 5FE · Security Guard Services, Fire Alarm Suppliers, Fire Protection Services
4.1
19 reviews

Concept Fire & Security Solutions is rated 4.1/5 from 19 Google reviews and serves Cardiff and the surrounding area. Services include security guard services, fire alarm suppliers, fire protection services.

#10

Chubb Fire & Security

Cardiff · CF10 4SP · Security Services, Fire Alarm Suppliers, Fire Department Equipment Suppliers
3.7
3 reviews

Chubb Fire & Security is rated 3.7/5 from 3 Google reviews and serves Cardiff and the surrounding area. Services include security services, fire alarm suppliers, fire department equipment suppliers.

Frequently asked questions

How are the Security System Installers in Cardiff ranked?

Companies are ordered by their Google rating and number of reviews. Featured listings are shown first and clearly labelled; otherwise ranking cannot be bought.

How many Security System Installers are listed in Cardiff?

Leads FM currently lists 15 Security System Installers in Cardiff, with an average Google rating of 4.3 across 722 reviews.

How do I get a quote?

Open any company profile and use the enquiry form — your request goes straight to the company, free of charge and with no obligation.

Is my company missing from this list?

Add it free at leadsfm.com/list-your-business, or claim your existing listing to update details and appear with a Verified badge.

See all 15 Security System Installers in Cardiff