Roof lanterns in Chelmsford

Daylight in Chelmsford

On the shortest day Chelmsford gets about 7h 47m of daylight, with the sun only 14.8° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.

Delivery and fitting in Chelmsford

We confirm the delivery cost and date for CM1 on your quote. Lanterns arrive palletised, with the glass packed separately.

Fitting in Chelmsford can be quoted on request by installers working under S&K, subject to cover for your postcode.

Delivery to CM1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.

Guide prices for Chelmsford

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 Chelmsford

England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.

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 in Chelmsford 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 Chelmsford