Large roof lanterns in Letchworth Garden City
Whether your Letchworth Garden City extension is still on paper or the roof is already on, we can price a large roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a large roof lantern for Letchworth Garden City
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Letchworth Garden City homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
At 51.98°N, Letchworth Garden City sees roughly 7h 45m of daylight in late December and 16h 44m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Approximate weight given with your quote
- Delivered as a frame kit with glass
- Lengths from about three to six metres
Delivery and fitting in Letchworth Garden City
Your quote includes delivery to Letchworth Garden City at a confirmed price, usually to the kerbside or driveway on pallets.
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.
Large roof lantern prices for Letchworth Garden City
Guide prices for common large roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
| 2500 × 4000 mm | 10.00 m² | £4,895–£5,695£4,079 ex VAT from | Configure |
| 3000 × 4000 mm | 12.00 m² | £5,695–£6,595£4,746 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.
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 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
What is the biggest roof lantern you can supply?
It depends on the range. Some go to about 6 m by 4 m with intermediate rafters. Send us your kerb size and we will confirm what can be made.
Do large lanterns overheat a room?
A large area of south-facing glass can make a room warm on sunny days. Solar-control glass, an opening vent and good background ventilation all help. Our guide on overheating explains the options.
Is it worth having solar-control glass in Letchworth Garden City?
With the midsummer sun about 61.5° high at noon, roof glass in Letchworth Garden City gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do you deliver roof lanterns to Letchworth Garden City?
Yes. Delivery to Letchworth Garden City (SG6) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.