Roof lanterns in Portsmouth

Daylight in Portsmouth

At 50.8°N, Portsmouth sees roughly 7h 57m of daylight in late December and 16h 31m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.

Delivery and fitting in Portsmouth

We confirm the delivery cost and date for PO1 on your quote. Lanterns arrive palletised, with the glass packed separately.

If you would like us to fit it, we will check fitting cover for PO1 and quote a fixed price after seeing photos or surveying.

Delivery to PO1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.

Guide prices for Portsmouth

Rectangular aluminium lanterns, supply only, including VAT:

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 for Portsmouth

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 in Portsmouth 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 questions from Portsmouth