Roof lantern upstands in Sevenoaks
Need a roof lantern upstand in Sevenoaks? Send your postcode and lantern size and we will quote a fixed price in writing, with delivery to TN13 or fitting where we have cover.
Price a roof lantern upstand for Sevenoaks
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Sevenoaks projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
In midsummer the noon sun stands about 62.2° high over Sevenoaks, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Lifts the lantern clear of the roof finish
- Made to match the lantern's external size
- Ordered with your lantern if you wish
Delivery and fitting in Sevenoaks
We confirm the delivery cost and date for TN13 on your quote. Lanterns arrive palletised, with the glass packed separately.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Sevenoaks before quoting.
Delivery to TN13 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Sevenoaks
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 |
| 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 Sevenoaks
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 Sevenoaks 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 Sevenoaks
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.
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 you deliver roof lanterns to Sevenoaks?
Yes. Delivery to Sevenoaks (TN13) 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 Sevenoaks?
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.