🪟 Velux & Skylight Cost Calculator
Get an instant estimate for Velux windows and skylights in UK.
Updated February 2026 • British prices incl. VAT
Your Velux Window Estimate
Total estimated cost (incl. VAT & installation)
Cost Breakdown:
Includes: Window supply, flashing kit, installation labour, making good around opening, and cleanup.
Note: Prices may vary based on roof type, access, and complexity. Final quote requires site visit.
Velux Window Costs in UK 2026
Window Type
Centre-pivot is most popular and affordable. Top-hung gives better views but costs 20% more.
Size Matters
Larger windows let in more light but cost more. Consider multiple smaller windows for flexibility.
Replacement vs New
Replacing existing skylights is 30-40% cheaper than cutting new openings into your roof.
British Weather
Always use proper Velux flashing kits. British rain will find any weakness!
Frequently Asked Questions
How long does Velux installation take?
A replacement window takes 3-4 hours. A new installation with cutting into the roof takes 1-2 days including making good.
Do I need planning permission?
Usually no, skylights are exempt development in UK. However, check if your property is in a protected area or conservation zone.
How long do Velux windows last?
Velux windows typically last 20-25 years. The glazing unit may need replacement after 15-20 years due to seal failure.
What's included in the price?
Our quotes include the window, flashing kit, labour, and basic making good. Scaffolding, blinds, and electrical work are extras.
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