Contemporary roof lanterns in Swanley
Whether your Swanley extension is still on paper or the roof is already on, we can price a contemporary roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a contemporary roof lantern for Swanley
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Contemporary roof lanterns for Swanley homes
Slim frames, fewer bars and a lower profile for a cleaner view of the sky.
In midsummer the noon sun stands about 62.0° high over Swanley, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Slim profile suits anthracite and black
- Larger glass units between bars
- Ideal for modern rendered extensions
Delivery and fitting in Swanley
We confirm the delivery cost and date for BR8 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 Swanley before quoting.
Delivery to BR8 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Contemporary roof lantern prices for Swanley
Typical guide prices for contemporary roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,395–£1,695£1,162 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,695–£1,995£1,412 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,495–£4,095£2,912 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,395–£5,095£3,662 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 Swanley
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.
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 Swanley 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 Swanley
Can I have a contemporary lantern in white?
Yes, though most buyers choose grey or black because the slimmer frame is the point and dark frames disappear against the sky.
Is a contemporary lantern the same as a flat rooflight?
No. A contemporary lantern still has sloping glass and a ridge or apex; it simply has slimmer frames and fewer bars. A flat rooflight is a single, nearly flat pane of glass on an upstand.
Do you deliver roof lanterns to Swanley?
Yes. Delivery to Swanley (BR8) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Can you fit a roof lantern in Swanley?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.