# Security systems / CCTV in Hertfordshire

25 security systems / CCTV near Hertfordshire, ranked by the strength of independent public evidence. Trust Score is used when available, drawing on reviews, credential evidence and registry data from named public sources, cross-checked wherever more than one source covers a business. No ads, no paid placement. Below are the top 12 by evidence.

| Trader | Location | Trust Score | Rating | Reviews | Named sources |
| --- | --- | --- | --- | --- | --- |
| [DCA Security Systems Ltd](https://mytrustedtraders.com/traders/dca-security-systems-ltd) | Hemel Hempstead | 66/100 | 5.0/5 | 150 | Checkatrade |
| [ASI Ltd (Audio Visual & Security Installations)](https://mytrustedtraders.com/traders/asi-ltd-audio-visual-security-installations) | Waltham Cross | 54/100 | 4.9/5 | 131 | Checkatrade |
| [Deter Prevent Protect](https://mytrustedtraders.com/traders/deter-prevent-protect) | Waltham Cross | 50/100 | 5.0/5 | 109 | Checkatrade |
| [101 Security Services Ltd](https://mytrustedtraders.com/traders/101-security-services-ltd) | Hemel Hempstead | 50/100 | 4.8/5 | 105 | Checkatrade, Companies House |
| [Hound Security](https://mytrustedtraders.com/traders/hound-security) | Hitchin | 49/100 | 5.0/5 | 27 | Checkatrade, MyBuilder |
| [Harpenden Security Systems](https://mytrustedtraders.com/traders/harpenden-security-systems) | Harpenden | 45/100 | 5.0/5 | 44 | Checkatrade |
| [Alb security](https://mytrustedtraders.com/traders/alb-security) | Welwyn Garden City | 42/100 | 5.0/5 | 24 | Checkatrade |
| [Herts Security Systems Ltd](https://mytrustedtraders.com/traders/herts-security-systems-ltd) | Hemel Hempstead | 34/100 | 5.0/5 | 7 | Checkatrade |
| [Polar Security Ltd](https://mytrustedtraders.com/traders/polar-security-ltd) | Hertfordshire | 33/100 | 5.0/5 | 10 | Checkatrade |
| [Alarms Are Us](https://mytrustedtraders.com/traders/alarms-are-us) | Bushey | 31/100 | 4.9/5 | 5 | Checkatrade |
| [SGE Electrical](https://mytrustedtraders.com/traders/sge-electrical) | Stevenage | 29/100 | 5.0/5 | 11 | Checkatrade |
| [Zyena Limited](https://mytrustedtraders.com/traders/zyena-limited) | Rickmansworth | 28/100 | 4.6/5 | 3 | Checkatrade |

Each trader's full public evidence is at its profile URL (append `/md` for a Markdown version). See all security systems / CCTV in the United Kingdom at `https://mytrustedtraders.com/find/security-systems`.

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Source: MyTrustedTraders. https://mytrustedtraders.com/find/security-systems/hertfordshire
Real public evidence only: every figure traces to a named source, and figures are cross-checked wherever more than one independent source covers the same business. If a source does not carry a field, it is not shown.