Installation of Large Secondary Glazing comes with many substantial benefits. It is not just a money saver but also improves home comfort to a very high level. It usually involves the installation of a second window in the interior next to the existing window. Secondary Glazing is an independent window system installed to the room side of existing windows. The original windows remain in their true form while the new window system is installed. Secondary Glazing is available as removable and fixed units & open-able.

The second panel creates a still space between the existing window and itself thereby reducing heat transfer from outside to inside and vice-versa. Secondary glazing involves glass panel inside a frame or acrylic panel instead of glass due to its lighter properties.

In Double Glazing Accessories the inside and outside panel are joined together to form a single window unit system while secondary glazing has got 2 independent window systems. The gap between the windows in Double glazing is normally 16mm. Much of the comfort and energy efficiency benefits of new double glazing come from the reduction of draughts that will result from well-fitted window frames with integral draught-proofing.

There are several Double Glazing Accessories and Double Glazing systems available which provide installations that accentuate the particular needs of the building. Proprietary systems normally have aluminium frames. It allows slim systems that can fit well so that shutters and window sills can be retained. The system may also use an aluminium outer frame fitted to a softwood ground or seasoned hardwood depending upon the design. A Bespoke system can also be designed comprising a sub-frame commonly of timber. Individual glazed windows can be hinged so that they fold up like shutter or operate like sash windows.