Large roof lanterns in Derbyshire
We supply large roof lanterns across Derbyshire, from Derby to the smaller towns, priced to your kerb size and delivered to your site.
Get a price in Derbyshire
Send your postcode and kerb size for a fixed written quote.
Choosing large roof lanterns in Derbyshire
Lanterns of three metres and more for open-plan extensions, with intermediate rafters.
Across Derbyshire, the shortest day brings around 7h 33m of daylight and the midsummer sun reaches about 60.4° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.
- Fitting can be quoted on request
- Intermediate rafters carry the larger glass
- Delivered as a frame kit with glass
- Lengths from about three to six metres
Delivery and fitting in Derbyshire
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.
Large roof lantern prices
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 |
| 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 in Derbyshire
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 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
Large roof lanterns in Derbyshire: questions
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.
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.
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.
How quickly can I get a roof lantern in Derbyshire?
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 Derbyshire.
Large roof lanterns by town in Derbyshire
- Large roof lanterns in Alfreton
- Large roof lanterns in Belper
- Large roof lanterns in Buxton
- Large roof lanterns in Chesterfield
- Large roof lanterns in Derby
- Large roof lanterns in Dronfield
- Large roof lanterns in Heanor
- Large roof lanterns in Ilkeston
- Large roof lanterns in Long Eaton
- Large roof lanterns in Ripley
- Large roof lanterns in Staveley
- Large roof lanterns in Swadlincote