Manufacturers, Suppliers and Installers of High Quality
Aluminium and UPVC Windows, UPVC Doors,
Composite Doors, Folding Doors, Double Glazing
and Conservatories since 1988
Below is our 6 step guide to installing your aluminium folding doors. If we are
fitting your aluminium folding sliding doors then you do not need to worry about this information.
However if you are purchasing our aluminium bifolding doors to fit yourself,
then obviously this information is for you.
The 6 steps are:
Check and double check the size, type and condition of the folding sliding door against the survey size
and against the actual aperature size prior to removing any existing door or starting
The installer is responsible for both the internal and external
protection of the property during installation work.
Therefore ensure clean dustsheets are used on the inside to protect any flooring or decorations,
and avoid excessive damage to garden areas by using boards or dustsheets where appropriate.
It is essential that the folding doors are fitted square and
plumb in all three axis (horizontal, vertical front to back, and vertical side to side). Failure to fit
the folding doors square and plumb will result in the doors not operating correctly, and no amount of post installation
adjustment will be able to overcome the problems caused by the poor initial installation.
We recommend that a through frame fixing method is used on folding sliding doors as opposed to fixing with a fixing cleat. Fisher bolts or a self tapping masonry fixing (tapcon)
provide a more rigid fixing, which is essential on all doorset.
Polyurethane expanding foam can be used in conjunction with through frame fixing, however expanding foam should never be used solely by itself as a method of fixing.
Corner fixings should be between 150mm and 250mm from the external corner.
Each jamb and cill should have a minimum of two fixings with intermediate fixings being positioned
at no greater than 600mm centres.
Effective glass packing is essential to minimise 'drop' of the doors over time. Treat each folding door as
a conventional hinged door and pack accordingly. Fit location blocks (or glass spacers) between the glass and the stiles of each door
so that the glass cannot move in service. Be careful not to block drainage channels by using bridge packers in conjunction with glazing packers where appropriate.
Once the folding sliding doors have been glazed correctly the wedge gasket can be fitted. Without the wedge gasket the doors will not be weatherproof, and can result in poor mechanical operation.
The hinges and the rollers are factory fitted in the correct position. These should not be adjusted from the factory settings.
If the doors need adjusting up or down then the problem usually stems from incorrect glass packing (see previous section).
After installation please check the following: