Large roof lanterns in Dereham
Choosing a large roof lantern for a house in Dereham? Start with the guide prices below, check the planning and building regulations notes for England, then ask for a fixed quote with delivery to NR19.
Price a large roof lantern for Dereham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Dereham homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
At 52.68°N, Dereham sees roughly 7h 37m of daylight in late December and 16h 52m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Intermediate rafters carry the larger glass
- Delivered as a frame kit with glass
- Approximate weight given with your quote
Delivery and fitting in Dereham
Delivery to NR19 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Dereham before quoting.
Delivery to NR19 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Dereham
What large roof lanterns cost in common sizes (guide, inc 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 Dereham
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 Dereham 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 Dereham
Does a large lantern need structural calculations?
The roof structure around it usually does. Your engineer or building control body will want the lantern's weight and the opening size.
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.
Can you fit a roof lantern in Dereham?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.
How quickly can I get a roof lantern in Dereham?
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 NR19.