• Tel:  01872 304394

Lape House, Lower Hugus Rd, Threemilestone, Truro, Cornwall, TR3 6BD

Cornwall's Specialists In Burglar & Security System Installation.

Sentry Alarms proudly serves locations across Cornwall with complete security systems and intruder alarm installation solutions.

Based in Truro our security system services are founded upon our commitment to great customer service and high quality alarm installations you can expect from a company with over 22 years of experience.

We provide the latest wired and wireless burglar alarms and home security systems, all installed with the utmost care and minimal disruption to your home or business premise.

Call us for today for free survey.

SSAIB registered

Latest wired and wireless burglar alarms

Police approved

Insurance approved

Intruder alarms and security systems installed

CCTV systems

Competitive prices

Friendly, personal service


Services and products

  • Burglar alarms & security systems
  • Security services & equipment
  • Security companies
  • Alarm installation
  • Alarm maintenance
  • Cctv installers
  • Free Quotes
  • Free Initial Consultation
  • Free Surveys
  • Home security
  • Keyholding service
  • Office security
  • Retail security


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