Scores based on 361 reviews

Reliability & timekeeping

Invoice history based on 227 reviews.

Invoice History
Charged as per quote / estimate97.36%
Above quote / estimate: kept informed1.76%
Above quote / estimate: not kept informed0.88%
Appointments reported as missed (6 months) 0
Average score 9.85
361 reviews
  • Interviewed by Checkatrade
  • 3 accreditations checked
  • Insurance checked
  • Limited company checked
  • ID checked
  • Address checked
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  • VAT registered
  • Checkatrade standard signed

Data & Security Installations (DSI) is a local business providing complete Data, Telecommunications and Security solutions with specialists that offer 40 years experience in telecoms and over 20 years in security. We know our business, and we understand the needs of our customers. 

We will install standard, effective security measures efficiently and professionally, or deliver a tailor-made solution to your specific need.  We are a small, highly qualified and fully trained team that has developed a loyal customer base across the Home Counties in the South East.

Based in

Epsom, Surrey

Works in

Epsom, Worcester Park, Sutton, London, Coulsdon, Kent, Hampshire, Surrey