Total Peace
of Mind....

Quality & Security

Thirty five years experience has gone into the development of Stern Fenster's automated window manufacturing plant and glass processing facility, where their extensive range of machinery enables them to manufacture a wide variety of custom designed windows, doors and conservatories.

The Deceuninck window profile is designed and extruded in the UK to BS EN ISO9001:2000, their profile, glass and manufacturing process are covered by British Standards Kitemarks 7413, 7412, 6206 and BS EN 1279

All windows and doors come with double glazed units as standard and if you are not familiar with them you will be surprised at the amount of warmth they keep in and the levels of noise they keep out.  Safety and Security are of paramount importance with any new windows and doors.  That’s why we insist on the use of safety glass, either toughened or laminated for critical glazing areas as per the British Standards code of practice BS6262 and in accordance with approved document "N" The Building Regulations.

  All Super Fortress door locks are approved by the ABI (Association of British Insurers) and benefit from multipoint locks with hook bolts, roller cambs and a deadbolt. The deadbolt is secured against sawing by hardened steel pins. The locks are tested to European Standard DIN 18103, DIN 18251, DIN 18357 and are recognised to conform to BS3621:1980. 

All Super Fortress doors use high security hinges for increased safety and strength.

All Super Fortress windows and doors are reinforced with steel to comply with British Standard Kitemark BS7412.  Some Super Fortress products can be upgraded to also comply with British Standard Kitemark BS7950/7412 to give improved security for domestic dwellings.


Secured by Design is the official UK Police flagship initiative supporting the principles of 'designing out crime'. Our windows and doors comply with the latest Secured by Design standards giving you total peace of mind.

During the last 50 years MACO have become one of the leading European developers and manufacturers of door and window security products. MACO are so confident in the security of the windows manufactured by their partners that they have created a MACO SECURE guarantee scheme designed completely for the benefit of the end user. In the event of a forced entry being achieved, MACO will reimburse you with the cost of your insurance excess up to the sum of £1,000. A copy of the Terms and Conditions of the guarantee scheme can be found on our Technical Information page for further information.

The British Standards Institute is the world's first national standards body, focused on improving systems, applications and processes in business by benchmarking them against set standards. Since 1991 our products have been tested against these standards to ensure that you get a quality product every time.


Look for the Enery Saving logo when choosing windows, that way you can be sure they are the most energy efficient. Log on to their website, for more details.


BS EN 1279 Kitemark for the manufacturing of sealed units
BS 7950 Kitemark for improved security windows
BS 7412 Kitemark for manufacturing of uPVC frames
BS EN 12600 Kitemark for the manufacturing of toughened glass
BS EN 12608 Kitemark for the fabrication of windows and doors

Tel:  01303 249048
Fax: 01303 244443

  [email protected]