Roof window (Velux) cost UK 2026
The going rate for roof window (velux) in 2026 is replace existing window: £500–£1,300/window (supply & fit, ex scaffold). Below: a calculator, what the job involves, materials at three price levels, and the prep that changes the price.
Roof window (Velux) calculator
Market band source: MyJobQuote, Checkatrade.
What the job involves
| Stage | Task | Typical time |
|---|---|---|
| fit | Open the roof, trim, fit window and flashing | 14 h per window |
Materials at three price levels
| Material | Budget | Trade choice | Premium |
|---|---|---|---|
| Roof window 78x98 each | £313 VELUX GGL MK04 2070 White Centre Pivot Window Laminated - 78cm x 98cm — Centre-pivot roof window | £603 VELUX GGL MK04 307030 Pine Centre Pivot Solar INTEGRA Window 78 x 98cm — Centre-pivot roof window | £716 VELUX GGL MK04 306630 Pine Centre Pivot Solar INTEGRA Window 78 x 98cm — Centre-pivot roof window |
| Roof window flashing (tile) kit | £70 VELUX ETW WK34 2000 Pro+ Tile Flashing for Fixed Window — Flashing matched to tile or slate | £113 VELUX Pro+ EDW MK06 2000 Insulated Single Tile Flashing - 78cm x 118cm — Flashing matched to tile or slate | £142 VELUX Pro+ EDW UK04 2000 Insulated Single Tile Flashing - 134cm x 98cm — Flashing matched to tile or slate |
Trade prices ex VAT, estimates checked 2026-09-25. Log your receipts in Grafto and your own prices replace these.
What changes the price
- New opening or replacing a window? new opening · replace existing window big effect
- Storeys? 1 · 2 · 3 big effect
Questions
How much does roof window (velux) cost in the UK in 2026?
The researched market band is replace existing window: £500–£1,300/window (supply & fit, ex scaffold), from MyJobQuote, Checkatrade. A worked example of 1 window comes to about £986–£1,589 across budget, trade and premium materials.
How long does roof window (velux) take?
The worked example of 1 window takes about 1 working days.
What changes the price of roof window (velux)?
Mainly new opening or replacing a window, storeys, plus any prep found on site: .