Secured by Design




Established in 1989, Secured by Design (SBD) is the title for a group of national police projects focusing on the design and security for new & refurbished homes, commercial premises and car parks as well as the acknowledgement of quality security products such as garage doors. It supports the principles of ‘designing out crime’ through physical security and processes.

At Garage Door Systems we take security seriously, and have always designed our products to be inherently secure.

The Secured by Design Police Preferred Specification standard to which our DuraTherm Sentinel sectional garage doors are tested and certified, provides added peace of mind, knowing that your garage is as secure as it can be.

DuraTherm Sentinel has a strengthened design that is used in conjunction with a LiftMaster™ EVO electric opener to achieve the Secured by Design standard. Security and opening at the touch of a button - perfect! DuraTherm Sentinel is available on Linear and Georgian design doors.

Sectional Doors must be specified as DuraTherm Sentinel and installed with a compatible LiftMaster™ Evo operator to meet SBD accreditation. DuraTherm Sentinel is available on all Linear and Georgian doors up to 4420mm (14’6”) wide x 2438mm (8”) high Doors with windows, manually operated doors or doors fitted between the opening are excluded from Secured by Design certification.


  • Once a burglar is in your garage, can they enter your home through a connecting door?
  • The average home has over £2000 of items in the garage... ...What's in yours?
  • As front doors become more secure, an increasing target for break-ins is the garage door...
  • 10% of all burglaries are through a garage... ...we're 'designing out crime' with our Sentinel door!