Square roof lanterns in Letchworth Garden City
Looking for a square roof lantern in Letchworth Garden City? We price it to your kerb size, confirm the fixed price in writing and deliver to SG6 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a square roof lantern for Letchworth Garden City
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Square roof lanterns for Letchworth Garden City homes
Four triangular panes meeting at a point: a pyramid lantern for square openings.
On the shortest day Letchworth Garden City gets about 7h 45m of daylight, with the sun only 14.6° 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
- Square sizes from about one metre
Delivery and fitting in Letchworth Garden City
Delivery to SG6 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for SG6 and quote a fixed price after seeing photos or surveying.
Delivery to SG6 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Square roof lantern prices for Letchworth Garden City
Typical guide prices for square roof lanterns, supply only and including VAT:
| 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 Letchworth Garden City
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in Letchworth Garden City 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 Letchworth Garden City
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.
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.
How quickly can I get a roof lantern in Letchworth Garden City?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for SG6.
Who checks building regulations for a lantern in Letchworth Garden City?
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.