Square roof lanterns in County Londonderry
Buy square roof lanterns for homes and building projects anywhere in County Londonderry. See guide prices below, then get a fixed written quote for your size, glass and colours.
Get a price in County Londonderry
Send your postcode and kerb size for a fixed written quote.
Choosing square roof lanterns in County Londonderry
Four triangular panes meeting at a point: a pyramid lantern for square openings.
Across County Londonderry, the shortest day brings around 7h 10m of daylight and the midsummer sun reaches about 58.5° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.
- Square sizes from about one metre
- Ideal over a table, island or hallway
- Four triangular panes to a single apex
- Strong central focal point from below
Delivery and fitting in County Londonderry
Delivery to Northern Ireland is by arrangement: we confirm the carrier, any sea-freight charge and the date on your quote 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
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 in County Londonderry
Energy standards for lanterns in Northern Ireland come from the Building Regulations (NI) 2012 and Technical Booklet F1.
Permitted development is set by the Planning (General Permitted Development) Order (NI) 2015, with planning handled by your district council.
Building regulations are checked by your district council's building control service. Replacement and new rooflights are controlled work in most cases. Your council's building control service will confirm whether an application is needed.
Sources: Building Regulations, Department of Finance NI · Planning permission: when to apply, nidirect
Square roof lanterns in County Londonderry: questions
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.
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.
Who checks building regulations for a lantern in County Londonderry?
Your district council's building control service. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.