South East · Updated 30 Sep 2026
Window & Double Glazing Prices in Gillingham
Gillingham uses the South East market setting in the calculator. Rather than treating that regional premium as the whole answer, this page shows how much opener layout and window size can move the fitted figure within the same local market.
Separate region from specification
The region moves all of the examples together, while the frame design moves them relative to one another. That distinction is useful when two quotes use different window layouts.
600 × 900 mm · white uPVC
1200 × 1200 mm · 1 opener
1200 × 1200 mm · 2 openers
1200 × 1200 mm · 1 opener
A worked Gillingham project
Take a 8-window project containing 4 medium casements, 2 small one-openers, 2 fixed medium windows. Using the current South East setting and the project-size adjustment, the model centres that mix at about £3,880. A practical fitted comparison band is roughly £2,950–£4,810. 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.
Check the written schedule
A good quote should make it possible to count the actual openings and identify fixed versus opening sections. If the schedule is vague, ask for clarification before comparing totals.
For the standard medium example, that produces a fitted centre of about £590 in Gillingham.
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 Gillingham
Use these answers as a starting point, then model your exact specification in the calculator.
Should I compare Gillingham 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 Gillingham 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 Gillingham 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 →