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How much does a Velux window cost in the UK?

A velux window costs £900 to £2,000 in the UK, typically around £1,400 per window, supplied and fitted. Prices reviewed June 2026.

A Velux roof window is priced per window, and the main thing that moves the cost is whether you are swapping an existing one or cutting a brand new opening in the roof. Size, the way the window opens, and whether scaffolding is needed do the rest.

From
£900
Typical
£1,400
Up to
£2,000
per window, supplied and fitted · reviewed June 2026 Half a day to a day for a straight swap, 1 to 2 days for a new opening.

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Velux window cost breakdown

What a velux window typically costs, by the unit:

WhatTypical UK cost
Per window, supplied and fitted£900 to £2,000 per window
+ New opening rather than a swapadd £250 to £600 per window
+ Electric or solar openingadd £300 to £800 per window
+ Scaffolding needed for accessadd £400 to £900 per window
Typical 2 windows£1,800 to £4,000

What's included in the price?

A typical velux window price includes:

What changes the price?

The things that move a velux window price most:

01

Like for like swap versus a new opening

02

Window size and how it opens (manual, electric or solar)

03

Whether scaffolding is needed for access

04

Glazing spec and any plastering to finish

Does where you live change the cost?

London and the South East add around 20 to 30 percent on labour.

Common questions

How much is it to replace a Velux window like for like?

A straight swap into an existing opening with a mid-range window typically costs £750 to £1,200 supplied and fitted, because the hole is already there. A small budget window can come in a little lower.

How much does an electric or solar Velux cost fitted?

An electric or solar opening Velux usually adds £300 to £800 over the manual version, so expect roughly £1,300 to £2,500 fitted depending on size.

These are independent guide prices based on typical UK jobs in 2026. Your actual cost depends on your property, spec, access and where you live. Always get at least three written quotes before committing.

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