London regional pricing
How Much Does a Window Fitter Cost in Westminster?
Updated prices for . Westminster prices are typically 40% above the national average.
How many windows?
Per-window prices are multiplied by your quantity. Package prices and doors stay as shown.
Price summary
Westminster Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Casement Window (uPVC) | £490 | £665 | £840 |
| Double Casement Window (uPVC) | £630 | £875 | £1,120 |
| Bay Window (3-Panel, uPVC) | £1,685 | £2,595 | £3,510 |
Prices include labour and materials. VAT may apply. Based on London regional pricing.
Full pricing
All Window Fitter Prices in Westminster
Every price adjusted for Westminster using a 1.403x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Casement Window (uPVC) | £490 | £665 | £840 | 2-3 hours per window |
| Double Casement Window (uPVC) | £630 | £875 | £1,120 | 2-4 hours |
| Bay Window (3-Panel, uPVC) | £1,685 | £2,595 | £3,510 | 1 day |
| Sash Window Replacement (uPVC) | £700 | £1,050 | £1,405 | 3-4 hours |
| Sash Window Replacement (Timber) | £1,120 | £1,825 | £2,525 | 4-6 hours |
| French Doors (uPVC Pair) | £1,120 | £1,615 | £2,105 | Half day |
| Patio / Sliding Doors (uPVC) | £1,265 | £2,035 | £2,805 | Half day |
| Bi-Fold Doors (3-Panel, Aluminium) | £3,510 | £5,260 | £7,015 | 1 day |
| Front Door Replacement (Composite) | £1,120 | £1,615 | £2,105 | 3-4 hours |
| Full House Window Replacement (3-Bed, 8 Windows) | £4,210 | £5,965 | £7,715 | 2-3 days |
| Glass Replacement (Single Sealed Unit) | £105 | £190 | £280 | 30-60 minutes |
| Secondary Glazing (Per Window) | £280 | £420 | £560 | 1-2 hours |
| Roof Window / Skylight (Velux-Style) | £700 | £1,195 | £1,685 | Half day |
| Window Repair (Hinges, Locks, Handles) | £70 | £140 | £210 | 30-60 minutes |
Single Casement Window (uPVC)
Low
£490
Average
£665
High
£840
2-3 hours per window
Double Casement Window (uPVC)
Low
£630
Average
£875
High
£1,120
2-4 hours
Bay Window (3-Panel, uPVC)
Low
£1,685
Average
£2,595
High
£3,510
1 day
Sash Window Replacement (uPVC)
Low
£700
Average
£1,050
High
£1,405
3-4 hours
Sash Window Replacement (Timber)
Low
£1,120
Average
£1,825
High
£2,525
4-6 hours
French Doors (uPVC Pair)
Low
£1,120
Average
£1,615
High
£2,105
Half day
Patio / Sliding Doors (uPVC)
Low
£1,265
Average
£2,035
High
£2,805
Half day
Bi-Fold Doors (3-Panel, Aluminium)
Low
£3,510
Average
£5,260
High
£7,015
1 day
Front Door Replacement (Composite)
Low
£1,120
Average
£1,615
High
£2,105
3-4 hours
Full House Window Replacement (3-Bed, 8 Windows)
Low
£4,210
Average
£5,965
High
£7,715
2-3 days
Glass Replacement (Single Sealed Unit)
Low
£105
Average
£190
High
£280
30-60 minutes
Secondary Glazing (Per Window)
Low
£280
Average
£420
High
£560
1-2 hours
Roof Window / Skylight (Velux-Style)
Low
£700
Average
£1,195
High
£1,685
Half day
Window Repair (Hinges, Locks, Handles)
Low
£70
Average
£140
High
£210
30-60 minutes
Regional comparison
How Westminster Compares
Average cost of single casement window (upvc) across regions.
Local insights
What Affects Window Fitter Costs in Westminster?
Westminster's housing stock ranges from Georgian and Victorian terraces to post-war estates and modern new-builds. Properties across areas like Islington, Hackney and Brixton vary enormously in age, layout and condition, all of which directly affect window fitter costs. Older properties tend to need more preparation work and present access challenges that push prices toward the higher end of the ranges shown above.
London is the most expensive part of the UK for trade work, with labour rates running around 24% above the national average. This reflects the high cost of living, congestion charges, and expensive parking that tradespeople factor into their quotes. Despite the higher prices, there is no shortage of qualified window fitter professionals across the capital. Prices still vary by 30-50% between tradespeople for the same job, making multiple quotes essential.
Several factors affect what you will pay for window fitter work in Westminster. The scope and complexity of the job is the biggest driver — straightforward work in accessible locations will be at the lower end, while anything involving older properties, difficult access, or structural complications will cost more. Material choices also make a significant difference; opting for premium brands or higher-spec products can add 20-40% to the total. For larger jobs, a window fitter in Westminster might quote £4,210 to £7,715 for full house window replacement (3-bed, 8 windows).
When getting quotes in Westminster, aim for at least three from different qualified professionals. Ask each one to visit and assess the work in person rather than quoting over the phone. A good window fitter will check the existing setup, identify any potential complications, and give you a detailed breakdown of costs. Be wary of quotes that seem significantly cheaper than others — they may be cutting corners on materials or not including everything in the price. Always check qualifications, insurance and recent reviews before hiring.
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UK-wide pricing
Window Fitter Costs in Other Cities
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Common questions
Frequently Asked Questions
Common questions about window fitter costs in Westminster.