Triple glazed roof lanterns in New Malden
Choosing a triple glazed roof lantern for a house in New Malden? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to KT3.
Price a triple glazed roof lantern for New Malden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Triple glazed roof lanterns for New Malden homes
Three panes for lower heat loss, a warmer inner surface and less noise.
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.
- Approximate weight shown before you order
- Quieter in heavy rain
- Combines with solar-control coatings
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.
Triple glazed roof lantern prices for New Malden
Guide prices for common triple glazed roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 2000 mm | 2.00 m² | £2,095–£2,495£1,746 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £2,695–£3,195£2,246 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £3,095–£3,595£2,579 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £4,395–£5,095£3,662 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with triple 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 have triple glazing with solar control?
Yes. Triple units usually include a solar-control or neutral coating.
Do I need triple glazing to meet building regulations?
Not usually. Well-specified double glazed lanterns generally meet the limiting values for rooflights. Triple glazing is an upgrade, not normally a requirement. Your building control body can confirm for your project.
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.