BIS Doors

Sectional Doors

Our insulated sectional overhead doors are used on industrial applications where insulation is a key factor of the structure. They provide access and security to warehouses, mechanic bays, and many other locations.



Each door is counterbalanced by means of tempered helical springs at high level, mounted on bright steel plates with self aligning roller bearings for smooth quiet operation. Cable tensioning devices are fitted as standard to all doors. Rubber seals are fitted to the top and bottom of each door with PVC seals to each side of the opening for protection against weather. 


Manual operation by means of continuous galvanised hand chain, or in smaller cases, push up with pull down cord. All manually operated doors are fitted with a recessed lifting handle and spring loaded shootbolt as standard. Electric operation by means of 415 volts 3Ph. supply drive motor with emergency disconnection and hand chain or push up operation in the event of power failure.


Guide tracks are individually manufactured to suit site conditions, taking into consideration door size, headroom and roof pitch.
The door blade is constructed from 610 mm deep x 40 mm thick composite panels. The panel itself gives a "U" value of 0.45 W/m2 K, meaning that a typical 4,000 x 3,500 (W x H) door fitted and tested gives a "U" value of 0.9 W/m2 K when installed. Panoramic panels are also available upon request.


Standard finish panel finish is Stucco embossed with RAL9010 white polyester finish. However we can paint the panels to most BS or RAL colour number, and plastisol finishes are available upon request.

sectional doors

sectional doors

section doors from BIS