Smith & Green Security Systems LTD
Sidcup
Checkatrade member since February 201510
Public liability insurance is unverified
Services
- Alarm Response
- Biometric Security Systems
- Burglar Alarm - Installation
- Burglar Alarm - Supply & Installation
- Burglar Alarm - Supply Only
- Burglar Alarm Servicing
- CCTV - Installation
- CCTV - Supply & Installation
- CCTV - Supply Only
- CCTV Repair
- Call / Door Entry Systems
- Electric Gate Repair
- Electric Gate Supplier
- Emergency Alarms / Security Service
- Gate Automation
- Intercom Entry Systems
- Intruder Alarms
- Security Assessment
- Security Solutions / Access Control
Customer Reviews
Write a review9.95 /10
Based on 13 reviews over the past 12 months
Quality of work
10
Reliability
9.92
Communication
9.92
Reviews (413)
10 Would recommend!
Posted 16 February
We inherited an old alarm system when we bought our house over 10 years ago. I contacted Dan to do an initial service and he has been great over the years whenever I've needed him for alarm services / improvements / general help! When we eventually get round to replacing the alarm system I wouldn't hesitate to use Dan again.Verified reviewerJob location: DA1410 Professional service
Posted 22 December 2025
Danny installed our alarm many years ago and is always helpful in servicing and changing the batteries when needed.Verified reviewerJob location: DA1610 New alarm control pad and sensors
Posted 08 December 2025
Dan did an excellent job. He’s thoroughly reliable and extremely professional. He has excellent knowledge of his field of work and did a great job.Verified reviewerJob location: E3- DDana
10 Home security system installation & Doorbell camera installation
Posted 16 October 2025
Job location: SE18Dan and his team are knowledgeable and carried out first class work with a keen eye to detail. I highly recommend them for any home security project. Thank you Dan & team 10 Quality alarm
Posted 17 September 2025
No hassle alarm system. Quality product. No accidental rings even with a nutter cat about! Danny has always provided a great service over the years.Verified reviewerJob location: SE2310 Top service from the team
Posted 09 September 2025
Dan and the team were excellent we had an alarm and cctv setup installed which was completed without any issues. Really pleased with the setup and how the team worked. Would highly recommend.Verified reviewerJob location: BR1
Photos
Company Info
Owner
Mr Daniel Green
Ltd Company
11 years on Checkatrade
VAT Registered
Yes: 338729465
SGS Security Systems are proud to have been installing security systems for over 25 years and are based in Sidcup but cover London and Kent.
We install small domestic systems and are proud to have completed the alarm a CCTV installations at our local Co Op stores in Halfway Street and Blackfen in 2019.
We are a family run business, that are friendly, reliable and has built a good reputation based on the high level of customer care that we provide. All our engineers are fully trained to a high standard provide a full range of services, from attending to a minor problem with a security system to complete installation.
Please contact us for more free no obligation information and advice on how we can help.

