Roof lantern upstands in Somerset

Choosing roof lantern upstands in Somerset

Insulated upstands and kerbs that raise the lantern above the roof finish.

Across Somerset, the shortest day brings around 7h 52m of daylight and the midsummer sun reaches about 62.2° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

• Ordered with your lantern if you wish
• Roof membrane dressed up the outside
• Made to match the lantern's external size
• Prefabricated insulated or site-built timber

Delivery and fitting in Somerset

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.

Roof lantern upstands guide prices

Guide prices for an insulated upstand on its own, by lantern size, including VAT:

Guide prices include VAT at 20%, upstand only, supply only. Upstands are made to match the lantern's external size; your fixed price is confirmed in writing before you order.

Planning and building regulations in Somerset

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.

Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.

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

Roof lantern upstands in Somerset: questions