Warranty & Maintenance

Caring for your windows & doors.


Our products are tested to meet New Zealand and Australian standards. Windows & doors have a 5 year manufacturers warranty and most suppliers products have warranties from 10+ years. 

Dulux can provide a 10 year warranty for Duralloy and 20 years for Duratec coatings.  For more details, please download a copy of our Terms & conditions.


Starke windows & doors are coating with Dulux powders. For care of your powdercoated windows & doors, please read the following Dulux care & maintenance guide. 

Powder coating is one of the most durable colour coatings available and, with very little effort on your part, it will provide you with many years of excellent service. To extend the life of powder coated articles and to comply with warranty requirements for powder coated aluminium joinery, a simple, regular maintenance program should be implemented. The effects of ultra violet light, atmospheric pollution, dirt, grime and airborne salt deposits can all accumulate over time and should be removed at regular intervals. As a general rule cleaning should take place every three months. In areas where pollutants are more prevalent, such as beachfront houses and industrial or geothermal areas, then a cleaning program should be carried out on a more frequent basis ie, every one to two months.

Three steps to cleaning your powdercoating:

• Carefully remove any loose surface deposits with a wet sponge.
• Use a soft brush (non abrasive) and a dilute solution of a mild detergent, eg. pH-neutral liquid hand dish-washing detergent in warm water (DO NOT use solvents) to remove dust, salt and other deposits.
• Ensure you thoroughly rinse the surfaces with clean fresh water after cleaning to remove all residues.
Other Powdercoat Cleaning Notes
• Mask your joinery when building, renovating, plastering or painting.
• Use approved tapes only to mask joinery& use masking tapes in accordance with manufacturer’s instruction.
• You may use isopropyl alcohol or Methylated spirits and rinse with warm soapy water.
• Only clean when powder coated surface temperature is below 25c
• Don’t rub powder coating excessively, especially metallic finishes.
• If paint splatters or sealants do get on joinery, do not allow to dry, remove immediately.
• Keep sunscreens away from powdercoating, some sunscreens adversely affectpainted finishes.
• Don’t use turpentine, white spirits, thinners, citrus based cleaners or other aggressive solvents on powder coating (these may be harmful to the extended life of the powder coated surface and should be avoided as the damage may not be visible immediately and may take up to twelve months to appear)

Glass maintenance

To clean your glass, we recommend you use a mild detergent, non-abrasive cleaneror glass  specific cleaning product.

1. Soak the surface of the glass with a mix of warm water and a mild detergent to loosen the dirt and debris on the surface.
2. After washing, rinse with clean water and then dry the glass using a clean grit-free squeegee, cloth or paper towel and remember, ‘Wet glass is dirty glass.’ All water and cleaning solution residue should be dried from the window gaskets, sealants and frames to prevent water spots.
To clean your glass, we recommend you use a mild detergent, non-abrasive cleaneror glass  specific cleaning product.

Glass cleaning notes:

• If splashes of mortar or plaster occur, immediately wash down with clean water or mild detergent. Do not allow splashes to harden.
• Do not use solvents.
• Clean glass carefully: use non-abrasive cleaners, mild detergents or propriety glass cleaners.
• Do not use scrapers on glass.
• Avoid cleaning tinted and reflective glass surfaces in direct sunlight.