Roof lantern installation in Cornwall

Choosing roof lantern installation in Cornwall

Optional fitting by installers working under S&K, quoted for your postcode.

Across Cornwall, the shortest day brings around 8h 01m of daylight and the midsummer sun reaches about 63.1° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

• Fixed price in writing before work starts
• Installers working under S&K
• Optional fitting quoted for your postcode
• Ready upstand, replacement or new opening

Delivery and fitting in Cornwall

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 installation guide prices

Guide prices for fitting only, by lantern size, including VAT (the lantern is priced separately):

Fitting guide prices include VAT and exclude the lantern, access equipment and any roof or kerb repairs. New openings are priced after a survey. Your fixed price is confirmed in writing before work starts.

Planning and building regulations in Cornwall

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 installation in Cornwall: questions