London · Updated 26 Sep 2026
Double Glazing Prices in London
London is the highest regional market adjustment in the current calculator. That makes it especially useful to compare fitted quotes against a London-specific baseline rather than a generic UK average.
Current London price examples
These are fitted market estimates from the same model used by the calculator. They include ordinary VAT and standard replacement installation, but are not binding installer quotations.
1200 × 1200 mm · 1 opener
1200 × 1200 mm · stacked layout
standard white · 1 opener each
standard door · no side panels
The London calibration is 18% above the UK baseline. On the standard medium uPVC example that moves the current fitted centre to about £620.
The 18% London adjustment is applied to the fitted-market model, not just the frame. On multi-window projects this can create a sizeable difference from national guide prices.
How to compare London quotes
For London quotes, separate ordinary replacement work from unusual access, scaffolding, parking constraints or major making-good. Those site-specific costs can push a real job outside the standard range.
Always compare like with like: dimensions, opening sections, frame system, colour, glass, removal, fitting and VAT.
What the fitted estimate includes
Supply of the selected window or door, standard replacement fitting and ordinary 20% VAT are included. Scaffolding, hidden structural repairs, listed-building requirements, major access problems and highly bespoke work can fall outside the standard range.
Related local price guides
Compare nearby or related markets, or use the UK price index for the wider national picture.
London window-price questions
Answers to common questions about the local fitted-price model.
How much higher are London window prices in the calculator?
The current London market factor is 18% above the UK baseline before product-specific options and uncertainty.
Does a London estimate include fitting?
Yes. It is intended as a fitted consumer-market estimate, including standard replacement installation and VAT.
Can the calculator price a whole London house?
Yes. Add the actual mix of windows and doors, or group identical items by quantity. Larger standard-window jobs receive a job-size efficiency adjustment.
Build a London estimate.
Choose your own sizes, layouts, glazing, colour and product mix. The calculator applies the appropriate regional market factor automatically.
Start my estimate · £2.99