Rectangular roof lanterns in New Malden
Looking for a rectangular roof lantern in New Malden? We price it to your kerb size, confirm the fixed price in writing and deliver to KT3 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a rectangular roof lantern for New Malden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for New Malden homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
At 51.4°N, New Malden sees roughly 7h 51m of daylight in late December and 16h 37m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Standard sizes or made to your kerb
- Suits kitchen-diners and rear extensions
- Ridge along the long axis, four glazed slopes
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.
Fitting in New Malden can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to KT3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for New Malden
Guide prices for common rectangular roof lantern sizes, including VAT, supply only:
| 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
Does a longer lantern need extra support?
Long lanterns use intermediate rafters inside the lantern itself. The roof structure around the opening must be designed to carry the lantern's weight; your builder or engineer sizes the trimmers.
Which way should the ridge run?
The ridge runs along the longer side. On a square opening there is no ridge and the lantern becomes a pyramid.
Who checks building regulations for a lantern in New Malden?
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.
Can you fit a roof lantern in New Malden?
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.