Roof lantern upstands in Beckenham
For roof lantern upstands in Beckenham, start with the guide prices on this page, then send photos and measurements for a fixed written quote covering BR3.
Price a roof lantern upstand for Beckenham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Beckenham projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
On the shortest day Beckenham gets about 7h 50m of daylight, with the sun only 15.2° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Made to match the lantern's external size
- Roof membrane dressed up the outside
- Ordered with your lantern if you wish
Delivery and fitting in Beckenham
Delivery to BR3 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Beckenham before quoting.
Delivery to BR3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Beckenham
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1200 × 1200 mm | 4.8 m | £245£204 ex VAT |
| 1000 × 1500 mm | 5.0 m | £245£204 ex VAT |
| 1000 × 2000 mm | 6.0 m | £295£246 ex VAT |
| 1000 × 2500 mm | 7.0 m | £295£246 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 Beckenham
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.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in Beckenham 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 Beckenham
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.
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
Do I need planning permission for a roof lantern in Beckenham?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.
Is it worth having solar-control glass in Beckenham?
With the midsummer sun about 62.0° high at noon, roof glass in Beckenham gets strong summer sun. Solar control is recommended for large or south-facing lanterns.