About us
We were founded by Gary Sanderson in 2010. Gary had over 30 years’ experience in the door business and his expertise and dedication to providing exceptional service laid the foundation for GLS.
Although he sadly passed away in 2020, his unwavering commitment to clients and his passion for delivering top-quality service has allowed GLS to continue.
Today, GLS is led by Gary’s close family and colleagues, who worked alongside him for over 30 years. They continue to uphold the same client-focused values that originally shaped the business.
Although he sadly passed away in 2020, his unwavering commitment to clients and his passion for delivering top-quality service has allowed GLS to continue.
Today, GLS is led by Gary’s close family and colleagues, who worked alongside him for over 30 years. They continue to uphold the same client-focused values that originally shaped the business.
Our Vision
We specialise in the installation of a wide range of electrical and industrial doors, including roller shutters and barriers. We have vast amounts of experience working with several different companies, including household brands, local councils and international businesses.
Our main office is strategically based near the M25, making us easy reach from London and the Home counties.
Our main office is strategically based near the M25, making us easy reach from London and the Home counties.
Client testimonials
“GLS Door Systems offer a very professional service at an affordable price. Whenever I have had to do an emergency callout they have attended site within 24 hours, sometimes within an hour of contacting them. I can’t recommend them highly enough”
Teledyne e2V
“GLS have held the contract for maintenance of our portfolio of mixed age automatic doors across two College sites for several years now. I have always found them to be courteous, prompt, and responsive; they have actively engaged with us to ensure H&S compliance and best value. I would have no hesitation in recommending them as a service provider.”
Colchester InstituteWorkshop Name
“GLS have proved a reliable and productive company we use for preventative and remedial works. They are an easy company to work with and carry out suitable servicing.”
Kier Group
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