The pristine appearance of PVC-U windows and door sets is maintained by occasional cleaning. The frequency of this cleaning will depend on the local conditions. For instance, products installed in an industrial or coastal area are likely to need cleaning more frequently. Particular care should be taken to ensure that nothing which may cause a rust stain comes into contact with PVC-U, as rust stains are not removable. Generally the little maintenance that is required by PVC-U products can be split into two categories:

1. Routine cleaning and maintenance that can be carried out by people with no particular experience with PVC-U products.
2. Repairs which can only be carried out by somebody with the requisite skills.

Routine cleaning and maintenance

The cleaning of both gaskets and profile sections should be carried out periodically to maintain the appearance. Failure to do this will not affect the performance of the products, but will spoil their appearance.

• Stains that are not removable with a mild solution of detergent in warm water, may be removable using a domestic non-abrasive cream cleaner. However, these should not be used to excess as they may affect the gloss finish.
• For PVC-U products with decorative finishes e.g. woodgrain, the supplier's advice should be sought as to which products are suitable for attempting to remove stubborn stains.
• On no account should any solvent-based cleaners be used without prior approval from the supplier, as some of these may seriously affect the profiles.
• PVC-U profiles never need painting. Should painting or repainting be desirable then this should only be undertaken by suitable qualified companies. The use of the wrong type of paint may seriously damage the profiles.
• During routine cleaning it is advisable to check for damage such as scratches, abrasions, signs of tampering and faulty operation of hardware, and that drainage channels are clear.
• Should any damage be found, it is advisable to seek advice from the supplier, or another suitably qualified company.
• The hardware used on PVC-U products is likely to require some simple lubrication during its lifetime. The supplier should give information as to the lubrication points and an advised frequency. Following these recommendations will ensure that the product continues to operate smoothly and efficiently.
• It is likely that the PVC-U frame will outlast all the other components such as double glazed units, hardware and gaskets. All these items can be replaced by experienced personnel.
• If a PVC-U frame is scratched or damaged in an unsightly position it may be possible to effect a repair. In these cases it is advisable to contact the supplier.

Hardware Maintenance Instructions

For problem-free operation of the hardware all parts must be kept free from lime, cement and concrete and all moving parts and locking points (latch & deadbolt, strikers and locking cams) must be lubricated at least once a year with either grease or oil.