Roof lantern upstands in Barnet
We quote roof lantern upstands for Barnet 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 Barnet
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Barnet projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
On the shortest day Barnet gets about 7h 48m of daylight, with the sun only 14.9° 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
- Ordered with your lantern if you wish
- Prefabricated insulated or site-built timber
Delivery and fitting in Barnet
Delivery to EN5 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for EN5 and quote a fixed price after seeing photos or surveying.
Delivery to EN5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Barnet
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 Barnet
In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.
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 Barnet 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 Barnet
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.
Can I order a lantern before the upstand is built?
Yes, if you build the upstand to the lantern's stated external size. Many people order the lantern and upstand together so they match.
Do I need planning permission for a roof lantern in Barnet?
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.
Do you deliver roof lanterns to Barnet?
Yes. Delivery to Barnet (EN5) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.