Joinery
Aluminium joinery is LOW maintenance, not NO maintenance so wash your aluminium windows and doors regularly.
Hardware & Entry Doors
Typically hardware and entry doors come with a powdercoat finish see Care & Maintenance for powdercoating. Remove the protective film covering from new entry doors.
Stainless Steel
Stainless steel is extremely resistant to corrosion but there are some factors that cause it to stain or discolour which can impact on the overall look.