Large roof lanterns in Derby
From a small lantern over a hallway to a long one above a kitchen island, we quote large roof lanterns for Derby homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a large roof lantern for Derby
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Large roof lanterns for Derby homes
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
Winter daylight in Derby lasts about 7h 34m, against 16h 55m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Intermediate rafters carry the larger glass
- Approximate weight given with your quote
- Lengths from about three to six metres
Delivery and fitting in Derby
Delivery to DE1 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 DE1 and quote a fixed price after seeing photos or surveying.
Delivery to DE1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Large roof lantern prices for Derby
What large roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 3000 mm | 4.50 m² | £2,595–£2,995£2,162 ex VAT from | 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 |
| 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 Derby
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 Derby 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 Derby
How is a large lantern delivered?
On pallets, usually with the frame and glass packed separately. The heaviest single item is normally a glass unit, which needs two or more people to lift safely.
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.
Who checks building regulations for a lantern in Derby?
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.
Can you fit a roof lantern in Derby?
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.