Replacement roof lanterns in Derby
Looking for a replacement roof lantern in Derby? We price it to your kerb size, confirm the fixed price in writing and deliver to DE1 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a replacement roof lantern for Derby
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Derby homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
At 52.92°N, Derby sees roughly 7h 34m of daylight in late December and 16h 55m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Energy standards for replacements explained
- Replace old polycarbonate with glass
- Often a one-day swap on a sound kerb
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.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Derby before quoting.
Delivery to DE1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Derby
Guide prices for common replacement roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 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
In England, building regulations energy guidance sets a limiting U-value of 2.2 W/m²K for new and replacement rooflights in existing homes, measured horizontally.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
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
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
Can I replace polycarbonate panels with glass?
Usually not in the old frame: glass is much heavier than polycarbonate and the frame was not designed for it. Replacing the whole lantern is the safer route.
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.
Do I need planning permission for a roof lantern in Derby?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.