Flat rooflights in Greater London

Choosing flat rooflights in Greater London

A single near-flat pane on an upstand: minimal, low and discreet.

Across Greater London, the shortest day brings around 7h 50m of daylight and the midsummer sun reaches about 61.9° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

• Sized to your upstand
• Fixed or electric opening versions
• Minimal, frameless-looking from inside
• Usually cheaper than a lantern

Delivery and fitting in Greater London

Delivery to mainland addresses here is quoted for your postcode and confirmed in writing before you order.

Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.

Flat rooflight prices

What flat rooflights cost in common sizes (guide, inc VAT, supply only):

Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.

Planning and building regulations in Greater London

In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.

Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.

Building regulations are checked by your local authority building control team or a registered building control approver. Replacing a rooflight in an existing home is building work. Installers registered with a competent person scheme can self-certify; otherwise building control must be involved.

Sources: Approved Document L, GOV.UK · Planning Portal

Flat rooflights in Greater London: questions