Square roof lanterns in St Austell
Order square roof lanterns for delivery to St Austell and nearby Bodmin and Truro. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price a square roof lantern for St Austell
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for St Austell homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
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.
- Ideal over a table, island or hallway
- Stock colours or any RAL on request
- No ridge, a neat apex cap instead
Delivery and fitting in St Austell
Delivery to PL25 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Fitting in St Austell can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to PL25 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for St Austell
Guide prices for common square roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £1,095–£1,295£912 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £1,595–£1,895£1,329 ex VAT from | Configure |
| 2000 × 2000 mm | 4.00 m² | £2,395–£2,795£1,996 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for St Austell
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.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
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
Will a square lantern leak at the top?
It should not when it is correctly installed and maintained. The apex is factory-designed to shed water; leaks usually come from the upstand or roof membrane rather than the lantern itself, which is why the upstand detail matters.
Is a pyramid lantern more expensive than a rectangular one?
Per square metre it can cost slightly more, because every pane is a triangle and the apex needs a special joint. The difference is usually small next to the effect of size and glass choice.
Can you fit a roof lantern in St Austell?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.
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.