North West · Updated 30 Sep 2026
Window & Double Glazing Prices in Lancaster
Lancaster’s benchmark is intentionally built around a complete fitted quote. The goal is to make line items easier to understand: basic frames, opening hardware and project quantity should be visible before decorative upgrades are considered.
Read the quote line by line
Look for whether cills, trims, disposal, vents and making good are included. Installers package these differently, so a slightly higher headline number can sometimes contain more of the finished job.
1200 × 1200 mm · 2 openers
1200 × 1200 mm · 1 opener
600 × 900 mm · white uPVC
1200 × 1200 mm · 1 opener
A worked Lancaster project
Take a 9-window project containing 5 medium casements, 2 fixed medium windows, 2 small one-openers. Using the current North West setting and the project-size adjustment, the model centres that mix at about £3,735. A practical fitted comparison band is roughly £2,840–£4,630. The mix matters: replacing one of the fixed frames with an extra opening casement would change the total even though the number of windows stays the same.
Keep optional extras optional
If you are offered upgraded handles, glass or colours, separate them mentally from the core replacement price. That keeps the market comparison clean.
For the standard medium example, that produces a fitted centre of about £500 in Lancaster.
Keep size, openers, glazing and colour aligned before deciding which quote is better value.
Compare with nearby markets
Neighbouring guides are context, not a claim that installers across different towns should charge the same amount.
Checking double glazing prices in Lancaster
Use these answers as a starting point, then model your exact specification in the calculator.
Should I compare Lancaster quotes by price per window?
Price per window can be useful, but only when the product mix is similar. A mixed project is better checked as a schedule of fixed, one-opener and two-opener units.
Can rough sizes be used for a Lancaster estimate?
Yes. Rough sizes are enough for an initial range; exact measurements can narrow the result later.
What is included in the fitted price?
Supply, standard replacement installation and ordinary VAT are included. Scaffolding, major building work and highly bespoke details are not.
Check your own Lancaster specification.
Use the benchmark above for context and the calculator for the real mix of windows and doors in your project.
Open the price calculator →