Replacement roof lanterns in Greenwich
From a small lantern over a hallway to a long one above a kitchen island, we quote replacement roof lanterns for Greenwich homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a replacement roof lantern for Greenwich
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Greenwich homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
On the shortest day Greenwich 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
- Energy standards for replacements explained
- Supply only or a fitting quote
Delivery and fitting in Greenwich
We confirm the delivery cost and date for SE10 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Greenwich can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to SE10 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Greenwich
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 Greenwich
In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.
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 Greenwich 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 Greenwich
My old lantern leaks. Is it the lantern or the roof?
Often the roof or kerb detailing. A survey or close inspection will tell. If the lantern is the problem, replacing it is usually better value than repairing old polycarbonate.
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.
Who checks building regulations for a lantern in Greenwich?
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.
Do you deliver roof lanterns to Greenwich?
Yes. Delivery to Greenwich (SE10) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.