Square roof lanterns in Devon
Across Devon, square roof lanterns are quoted to the external kerb size, with delivery confirmed for your postcode and fitting available on request.
Get a price in Devon
Send your postcode and kerb size for a fixed written quote.
Choosing square roof lanterns in Devon
Four triangular panes meeting at a point: a pyramid lantern for square openings.
Across Devon, the shortest day brings around 7h 58m of daylight and the midsummer sun reaches about 62.8° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.
- Four triangular panes to a single apex
- No ridge, a neat apex cap instead
- Square sizes from about one metre
- Strong central focal point from below
Delivery and fitting in Devon
Delivery to mainland addresses here is quoted for your postcode and confirmed in writing before you order.
Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.
Square roof lantern prices
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 in Devon
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.
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 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
Square roof lanterns in Devon: questions
What is the largest square lantern?
Ranges differ. Many go to around 3 m square, with extra hip bars on larger sizes. Tell us your kerb size and we will confirm which ranges can make it.
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.
Who checks building regulations for a lantern in Devon?
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.
Square roof lanterns by town in Devon
- Square roof lanterns in Barnstaple
- Square roof lanterns in Bideford
- Square roof lanterns in Exeter
- Square roof lanterns in Exmouth
- Square roof lanterns in Newton Abbot
- Square roof lanterns in Paignton
- Square roof lanterns in Plymouth
- Square roof lanterns in Plymstock
- Square roof lanterns in Tiverton
- Square roof lanterns in Torquay