Roof lantern upstands in New Malden
We quote roof lantern upstands for New Malden and the rest of Greater London, matched to the exact size of your lantern, with the price confirmed in writing before you order.
Price a roof lantern upstand for New Malden
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for New Malden projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
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.
- Prefabricated insulated or site-built timber
- Made to match the lantern's external size
- Roof membrane dressed up the outside
Delivery and fitting in New Malden
Delivery to KT3 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
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.
Roof lantern upstands guide prices for New Malden
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1500 × 1500 mm | 6.0 m | £295£246 ex VAT |
| 1500 × 2000 mm | 7.0 m | £295£246 ex VAT |
| 1500 × 2500 mm | 8.0 m | £345£288 ex VAT |
| 1500 × 3000 mm | 9.0 m | £345£288 ex VAT |
Guide prices include VAT at 20%, upstand only, supply only. Upstands are made to match the lantern's external size; your fixed price is confirmed in writing before you order.
Planning and building regulations for New Malden
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
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
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
What height should my upstand be?
High enough to keep water away from the lantern seal, commonly at least 150 mm above the finished roof surface. Follow the instructions for your chosen range.
Do you deliver roof lanterns to New Malden?
Yes. Delivery to New Malden (KT3) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
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.