Square roof lanterns in Corsham
Looking for a square roof lantern in Corsham? We price it to your kerb size, confirm the fixed price in writing and deliver to SN13 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a square roof lantern for Corsham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Corsham homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
On the shortest day Corsham gets about 7h 50m of daylight, with the sun only 15.1° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Strong central focal point from below
- Four triangular panes to a single apex
- Ideal over a table, island or hallway
Delivery and fitting in Corsham
Your quote includes delivery to Corsham at a confirmed price, usually to the kerbside or driveway on pallets.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Corsham before quoting.
Delivery to SN13 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Corsham
What square roof lanterns cost in common sizes (guide, inc 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 Corsham
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.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Corsham 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 Corsham
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.
Is it worth having solar-control glass in Corsham?
With the midsummer sun about 62.0° high at noon, roof glass in Corsham gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do you deliver roof lanterns to Corsham?
Yes. Delivery to Corsham (SN13) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.