Replacement roof lanterns in Welling
Whether your Welling extension is still on paper or the roof is already on, we can price a replacement roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a replacement roof lantern for Welling
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Welling homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
On the shortest day Welling gets about 7h 50m of daylight, with the sun only 15.1° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Warmer, quieter, brighter
- Replace old polycarbonate with glass
- Reuse the kerb if sound and to size
Delivery and fitting in Welling
We confirm the delivery cost and date for DA16 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 Welling before quoting.
Delivery to DA16 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Welling
Guide prices for common replacement roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 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 |
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 Welling
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 Welling 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 Welling
Can I replace polycarbonate panels with glass?
Usually not in the old frame: glass is much heavier than polycarbonate and the frame was not designed for it. Replacing the whole lantern is the safer route.
How long does replacement take on site?
For a like-for-like swap on a sound kerb, often a day. Kerb or roof repairs add time.
Can you fit a roof lantern in Welling?
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.
Do I need planning permission for a roof lantern in Welling?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.