Square roof lanterns in Gwynedd
Buy square roof lanterns for homes and building projects anywhere in Gwynedd. See guide prices below, then get a fixed written quote for your size, glass and colours.
Get a price in Gwynedd
Send your postcode and kerb size for a fixed written quote.
Choosing square roof lanterns in Gwynedd
Four triangular panes meeting at a point: a pyramid lantern for square openings.
Across Gwynedd, the shortest day brings around 7h 32m of daylight and the midsummer sun reaches about 60.3° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.
- No ridge, a neat apex cap instead
- Square sizes from about one metre
- Strong central focal point from below
- Ideal over a table, island or hallway
Delivery and fitting in Gwynedd
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 Gwynedd
Wales sets its own energy standards for rooflights in the Welsh Approved Document L, so the Welsh figures apply rather than England's.
Check the Welsh permitted development rules with your council before ordering, particularly in conservation areas.
Building regulations are checked by your local authority building control team. Replacing a rooflight in an existing home is building work in Wales too. A competent person scheme installer can self-certify; otherwise building control should be notified.
Sources: Approved Documents (Wales), Planning Portal · Planning permission, GOV.WALES
Square roof lanterns in Gwynedd: 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.
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.
Can I have an opening vent in a pyramid lantern?
Some ranges can fit a vent in one of the triangular panes, others cannot. We will tell you on the quote whether your chosen range allows it.
Who checks building regulations for a lantern in Gwynedd?
Your local authority building control team. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.