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Our balanced vertical sliding secondary glazing is specifically designed to complement traditional sash windows. Spring-balanced for effortless operation, with a unique tilt-in facility for easy cleaning, these units are the perfect solution for period properties across the UK.
Balanced vertical sliding (BVS) secondary glazing mirrors the operation of a traditional sash window, sliding vertically using a spring-balance mechanism that holds panels at any height. It sits discreetly within the window reveal and is virtually invisible from outside the property.
The TBVS (Tilt-Back Balanced Vertical Slider) allows each panel to pivot inwards through 180° for cleaning without removing the unit. The SPBVS (Slide Past) allows both panels to slide completely past one another for unrestricted access.
BVS: max width 1,575mm, max height 3,325mm, max weight 45kg. TBVS: max width 1,568mm, max height 3,025mm. All with woolpile and Q-Lon seals for enhanced performance. Compatible with arched windows.
Classic: 4.0mm toughened (max 1.5m² panel). Enhanced: 6.0mm through 10.8mm acoustic laminate (up to 2.7m² panel).
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