“I booked STS to install a CCTV system, door entry access, and an alarm system at a commercial premises. The workmanship was of a high standard, and they clearly knew their stuff. The business owner is a genuinely decent person… he went out of his way to work around my schedule which is appreciated. I’m very pleased with both the service and the quality of the systems installed. A straightforward, easy recommendation!”
Public evidence profile · Checked March 2026
STS Alarms
Review quality
No reviews in 12 months
Credentials & registries
City & Guilds Qualified - Level 2
No Trust Score yet
- Rated 5.0 from 15 reviews
- 1 credential shown
Newest review May 2025
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Trust at a glance
2 checksWhat we can verify about STS Alarms
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
Review qualityNo reviews in 12 monthsSee detail →Credentials & registriesCity & Guilds Qualified - Level 2See detail →
See the full verification checklist for STS Alarms →Reviews · public evidence
What customers say
These reviews are published independently on the named public source below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
5.0out of 5
How Checkatrade customers rate them (out of 5)
Reliability4.8
Communication4.8
Quality of work4.8
Where these reviews are published
- Checkatrade15 reviews · 5.0 avg
Highlights
“Excellent communication, I was able to book a time/ day that suited me. Solomon contacted me to ask if he could come early to do job. Very efficient, worked in a tidy manor and kept the area clean. He knew what he was doing.”
Detailed reviews
These are the individual reviews we hold for STS Alarms, including the highlights above. The 15 headline total is the review volume reported across public review sources.
Efficient and friendly
Local context
Rated 5.0, in line with the local average for security systems / cctv in Cardiff
Across 10 security systems / cctv in Cardiff, the typical rating is 5.0 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
Review quality check
Review recencyReview recency
How recently this business's reviews were left, kept separate from the star rating and the number of reviews.
No reviews from the last 12 months are shown.
Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
- Source checked
- 18 Mar 2026
Sources
2 named public sourcesWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Registers and membership directories
Public evidence last checked March 2026
About
Alarms / security in Cardiff.
Services they list
Alarm ResponseBurglar Alarm - InstallationBurglar Alarm - Supply & InstallationBurglar Alarm - Supply OnlyBurglar Alarm ServicingCall / Door Entry SystemsCCTV - InstallationCCTV - Supply & InstallationCCTV - Supply OnlyCCTV RepairElectric Gate RepairFire Alarm Installation
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
Cardiff
The areas they list covering on a public directory; confirm they cover your address before you book.
Your own checks
What to check before you hire
Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Look for consistent reviews across several named sources, not one polished profile.
Check any credential evidence, and that the business details independently check out.
Get a written quote and keep guarantee, insurance and payment terms in writing.
Want an extra legitimacy check? Run the Cowboy Checker on STS Alarms before you contact them.
Run Cowboy Checker →Good to know
Common questions about STS Alarms
Is STS Alarms a legitimate business?
STS Alarms has 15 independent public reviews, rated 5 out of 5. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about STS Alarms?
STS Alarms has 15 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How is STS Alarms rated on reliability and quality?
On Checkatrade, customers rate STS Alarms by category: Reliability 4.8 out of 5, Communication 4.8 out of 5, Quality of work 4.8 out of 5. These are per-category scores from real published reviews. They show where STS Alarms is strongest, not just the overall average.
How do I know STS Alarms' reviews are genuine?
STS Alarms' 15 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Is STS Alarms qualified and accredited?
We hold 1 independently sourced credential for STS Alarms, including City & Guilds Qualified - Level 2. Each is attributed to the body that issued it in the credentials section. For example, City & Guilds Qualified - Level 2 is City & Guilds: a long-established UK awarding body whose qualifications certify a tradesperson trained to a recognised vocational standard.
What does STS Alarms specialise in?
STS Alarms lists specialist services including Alarm Response, Burglar Alarm - Installation, Burglar Alarm - Supply & Installation, Burglar Alarm - Supply Only, Burglar Alarm Servicing, Call / Door Entry Systems. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
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