Seafront sandstone and harl ask different questions from later houses in Gibshill, Braeside and Larkfield. Timber can suit a carefully detailed elevation when maintenance is realistic. UPVC is often chosen where west-coast rain and salt air make low upkeep the priority.
Timber is familiar on older Greenock streets and needs a maintenance plan if it is to stay sound beside the Clyde.
UPVC is practical for many hillside and seafront replacements. Frame colour and bar layout still need to read with the elevation.
This article is a comparison, not a catalogue. For measured UPVC options after a survey, see UPVC windows. For the wider service picture, start with double glazing in Greenock.
A surveyor confirms what your property needs. We do not invent building-warrant rules or performance numbers on this page.