UPVC Cleaning Belfast

Diamond Property Maintenance NI restores UPVC windows, doors, conservatories and every other plastic feature across Belfast and Northern Ireland, clearing away the dirt, grime and oxidation that dulls white and coloured frames alike. UPVC is meant to be low maintenance, but it still weathers, and over a few years the frames pick up a grey, chalky film that makes even a well-kept house look tired. A proper clean brings the colour and shine back.

Why does white UPVC go dull and grey? Two things are happening at once. Airborne dirt, traffic grime and organic growth settle on the surface, and the plastic itself slowly oxidises, leaving a faint chalky bloom. In Northern Ireland's damp air, green algae and mould also gather in the frame recesses and around the seals. Ordinary washing-up liquid shifts the loose dirt but leaves the oxidation and the ingrained staining behind.

We use specialist UPVC cleaning solutions formulated to cut through oxidation and lift the ingrained grime that everyday cleaners miss. The frames, sills, glazing beads and seals are all cleaned by hand where they need it, so the detail is done rather than just the flat faces. This works across the full range of finishes, from standard white to the popular anthracite grey and every other colour.

Does it work on anthracite grey frames? Yes. Coloured and foiled UPVC needs the same care as white, and our solutions clean them without stripping or fading the finish, which lifts back to its proper depth of colour.

How often should UPVC be cleaned? Every six to twelve months keeps frames looking their best and stops the oxidation becoming stubborn. A typical clean costs between £80 and £200 depending on the number of windows and doors. Every job is carried out by our insured team, backed by 30 plus years of experience and £10M public liability cover.