Replacement roof lanterns in New Malden
From a small lantern over a hallway to a long one above a kitchen island, we quote replacement roof lanterns for New Malden homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a replacement roof lantern for New Malden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for New Malden homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
In midsummer the noon sun stands about 62.0° high over New Malden, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Supply only or a fitting quote
- Often a one-day swap on a sound kerb
- Energy standards for replacements explained
Delivery and fitting in New Malden
Your quote includes delivery to New Malden at a confirmed price, usually to the kerbside or driveway on pallets.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in New Malden before quoting.
Delivery to KT3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for New Malden
Typical guide prices for replacement roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 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 |
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 New Malden
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 New Malden 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 New Malden
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.
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.
How quickly can I get a roof lantern in New Malden?
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 KT3.
Is it worth having solar-control glass in New Malden?
With the midsummer sun about 62.0° high at noon, roof glass in New Malden gets strong summer sun. Solar control is recommended for large or south-facing lanterns.