Window prices by type
The style of window you choose is one of the biggest influences on price. A simple casement uses far less material and labour than a bay or a box sash, so two homes with the same number of openings can pay very different totals. Below are typical supplied-and-fitted price ranges for the most common UK window types, all as guidance figures confirmed only on a home survey.
Casement windows
Casement windows are the UK's default choice and usually the most affordable. A hinged sash opens outward on a simple frame, keeping material and labour low. Typical supplied-and-fitted prices run from around £350 to £650 in uPVC, rising for aluminium and timber. Larger openings and extra opening lights push the figure up.
Sash windows
Sliding sash windows suit period and conservation properties, with two panels that glide vertically. The mechanism and heritage detailing make them more expensive than a casement — typically £600 to £1,100 per window in uPVC, and considerably more in timber where authentic box-sash construction is involved.
Bay and bow windows
Bay windows project outward in three or more sections and often carry structural considerations, so they are the priciest common type. Expect roughly £1,000 to £2,200 for a uPVC bay, with aluminium and timber configurations reaching well beyond that. The exact figure depends on the number of facets, the glazing and any structural support required.
Tilt & turn windows
Tilt & turn windows open two ways — tilting inward at the top for ventilation, or swinging fully inward for cleaning and escape. The dual mechanism adds to the price over a standard casement, typically £450 to £850 in uPVC. They are popular in flats and upper floors where outward-opening sashes are impractical.
Flush casement windows
Flush casements sit level with the frame for a clean, traditional look increasingly popular on new builds and renovations. They cost a little more than a standard stormproof casement — around £400 to £750 in uPVC — for the neater sightline.
How type interacts with material
Type and material multiply together. A timber sash costs far more than a uPVC casement, while an aluminium tilt & turn sits somewhere between. To see the full picture, read our guide to window prices by material alongside this page, and for whole-property budgeting see the cost to replace all windows. The complete overview lives in our window price guide.
Because every firm prices styles differently, the surest way to a fair figure is to compare like-for-like. Some homeowners find it useful to request window quotes direct from local firms and line them up against the ranges here before deciding.
