For a local company with a focus on customer retention and good business ethics, DSI has built up a credible network of high-profile clients across the UK, including Blue Chip retailers, government institutions and entertainment centres.
Please visit our clients page to see a quick snapshot of some of the companies we have worked with over the years.
We offer a comprehensive range of services to ensure your commercial premises, data and IP, and more importantly, your people, are safe and secure. From state-of-the-art door entry systems to more cost effective solutions to entry, we’ve extensive experience to deliver a first class service at competitive prices.
We found all aspects of the service very good
Attention to detail, quality workmanship, fully tested the system, cleaned up and removed all rubbish. Would have no hesitation to recommend them. All aspects from estimating, planning, coordinating, implementation, invoicing were all spot on. Brian was extremely helpful and went the extra mile to ensure everything went smoothly.
DSI came out early this morning 7.30 am to fix a problem with our entry phone key pad system. We have used this company many times for our entry phone system and found Colin to be very reliable and always gets to the bottom of the problem. Would definitely recommend DSI.
Very polite workman. Arrived promptly answerved my questions with fantastic knowledge of the system putting my mind at ease. Competitive rates for a first class service!
Polite, on time, reasonable price
Have used DSI for my house alarm for ten years. Always efficient, prompt to respond when issues. Would highly recommend
A very reliable local company, the workers are all polite and efficient. Their work is first class.
Excellent workmanship and communication. The team installed pet friendly alarm detectors, replacing the standard ones that were in place when I moved house.
WORK & PROJECTS
By placing emphasis on high levels of expertise and good quality service, the company has built up a team with the necessary skills to specify and implement solutions for both the residential and commercial markets.
REQUEST A CALLBACK
To find out more about our services and how we can help secure your business, please request a callback and we will be in touch as soon as possible.
020 8393 1441
8:00am – 5:00pm
020 8393 1441