Roof lantern upstands in St Austell
Need a roof lantern upstand in St Austell? Send your postcode and lantern size and we will quote a fixed price in writing, with delivery to PL25 or fitting where we have cover.
Price a roof lantern upstand for St Austell
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for St Austell projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
Winter daylight in St Austell lasts about 8h 01m, against 16h 26m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Lifts the lantern clear of the roof finish
- Prefabricated insulated or site-built timber
- Made to match the lantern's external size
Delivery and fitting in St Austell
We confirm the delivery cost and date for PL25 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 St Austell before quoting.
Delivery to PL25 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for St Austell
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 |
| 1000 × 2500 mm | 7.0 m | £295£246 ex VAT |
| 1000 × 3000 mm | 8.0 m | £345£288 ex VAT |
| 1500 × 2000 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 St Austell
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.
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 St Austell 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 St Austell
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.
Who checks building regulations for a lantern in St Austell?
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.
Do I need planning permission for a roof lantern in St Austell?
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.