Roof lanterns in Dartford

Daylight in Dartford

At 51.45°N, Dartford sees roughly 7h 50m of daylight in late December and 16h 38m 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 Dartford

We confirm the delivery cost and date for DA1 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 DA1 and quote a fixed price after seeing photos or surveying.

Delivery to DA1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.

Guide prices for Dartford

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 Dartford

For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.

On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.

Building regulations in Dartford 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 Dartford