Flat rooflights in Sevenoaks
From a small lantern over a hallway to a long one above a kitchen island, we quote flat rooflights for Sevenoaks homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a flat rooflight for Sevenoaks
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Sevenoaks homes
A single near-flat pane on an upstand: minimal, low and discreet.
On the shortest day Sevenoaks gets about 7h 52m of daylight, with the sun only 15.3° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Fixed or electric opening versions
- Usually cheaper than a lantern
- Minimal, frameless-looking from inside
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.
If you would like us to fit it, we will check fitting cover for TN13 and quote a fixed price after seeing photos or surveying.
Delivery to TN13 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Sevenoaks
What flat rooflights cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £595–£695£496 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £845–£995£704 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £895–£1,095£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.
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 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
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
Can I walk on a flat rooflight?
Only if it is a walk-on rooflight designed for foot traffic. Standard rooflights are not designed to be walked on.
Do you deliver roof lanterns to Sevenoaks?
Yes. Delivery to Sevenoaks (TN13) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
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.