Large roof lanterns in Sevenoaks
Buy large roof lanterns for homes in Sevenoaks and across Kent. Choose a standard size or have one made to your kerb, see a guide price straight away, then get a fixed written quote with delivery to your TN13 address.
Price a large roof lantern for Sevenoaks
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Sevenoaks homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
Winter daylight in Sevenoaks lasts about 7h 52m, against 16h 36m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Solar-control glass recommended
- Lengths from about three to six metres
- Delivered as a frame kit with glass
Delivery and fitting in Sevenoaks
We confirm the delivery cost and date for TN13 on your quote. Lanterns arrive palletised, with the glass packed separately.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Sevenoaks before quoting.
Delivery to TN13 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Sevenoaks
What large roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 3000 mm | 4.50 m² | £2,595–£2,995£2,162 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
| 3000 × 4000 mm | 12.00 m² | £5,695–£6,595£4,746 ex VAT from | Configure |
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 Sevenoaks
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.
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 Sevenoaks 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
Questions from Sevenoaks
How is a large lantern delivered?
On pallets, usually with the frame and glass packed separately. The heaviest single item is normally a glass unit, which needs two or more people to lift safely.
Do large lanterns overheat a room?
A large area of south-facing glass can make a room warm on sunny days. Solar-control glass, an opening vent and good background ventilation all help. Our guide on overheating explains the options.
Who checks building regulations for a lantern in Sevenoaks?
Your local authority building control team or a registered building control approver. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.
How quickly can I get a roof lantern in Sevenoaks?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for TN13.