Roof windows & skylights, properly measured

Practical UK guides to roof windows, skylights and letting more daylight into your home: verified 2026 costs, exact dimensions for every VELUX code, planning rules, and honest comparisons.

Estimate your cost Decode a size code

Every price is dated and checked against its source. How Renofique works

Two tools worth bookmarking

Skylight cost calculator A realistic fitted range for your job in ten seconds: window type, size, powered opening, scaffolding and region, built on 2026 UK trade data. Open the calculator VELUX size-code decoder Type any code from your window's data plate. MK06, M06, 306 and GGL 14 are the same window; the decoder covers all four generations back to the 1970s. Decode a code

Start with the costs

The two questions every project starts with: what it really costs, and whether it's worth doing.

Average Skylight Installation Cost in 2026 (UK) Most UK skylight installations cost £900–£2,500 per window in 2026, fully fitted. Full breakdown: supply, labour, scaffolding, flat roofs and lanterns. Updated 3 Jul 2026

Pine-framed roof window throwing a shaft of afternoon light down a white loft wall

How Much Does a VELUX Window Cost? (2026 UK Prices)

VELUX windows cost £330–£1,230 to buy in 2026 depending on size and spec, or £655–£1,555 fitted. Full UK price tables for every window type.

Are VELUX Windows Worth It? (2026)

VELUX costs 15–40% more than rival roof windows. Here's what the premium actually buys, when it's worth paying, and when a cheaper brand makes more sense.

Can I Put a Skylight in My House Without Planning Permission?

Most UK skylights don't need planning permission — if they project under 150mm and follow permitted development rules. The exceptions, plus building regs.

VELUX against the rest

Same measurements, same test criteria, different verdicts. What the premium actually buys.

vs Fakro 15–25% less Comparable spec, laminated safety glass as standard. Where each brand wins. vs Keylite 30–40% less Installs faster, 20-year guarantee on PVC. What you give up, and when you shouldn’t. vs RoofLITE+ 30–40% less VELUX Group’s own budget brand: matching U-values, 10-year guarantee. The catches. Can't pick a lane? Fakro, Keylite, RoofLITE+, Roto and Dakea against VELUX in one rundown: prices, guarantees, quality, and which alternative fits which job.

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Skylights 17 Ultimate Guides 3 Velux 22 Velux Explained 5

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About Renofique

Dated price checks. Every figure shows when it was verified, and the cost pages cite the trade guides they're built on.
Sources read, then cited. If a claim can't be traced to a source we actually read, it doesn't ship.
Run by a renovator, not a lead farm. James is a UK homeowner; commissions never decide a recommendation.