Square roof lanterns in Lancashire

Choosing square roof lanterns in Lancashire

Four triangular panes meeting at a point: a pyramid lantern for square openings.

Across Lancashire, the shortest day brings around 7h 25m of daylight and the midsummer sun reaches about 59.7° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

• Four triangular panes to a single apex
• Square sizes from about one metre
• Stock colours or any RAL on request
• No ridge, a neat apex cap instead

Delivery and fitting in Lancashire

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.

Square roof lantern prices

What square roof lanterns 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 Lancashire

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

Square roof lanterns in Lancashire: questions