Replacement roof lanterns in County Londonderry
We supply replacement roof lanterns across County Londonderry, from Derry to the smaller towns, priced to your kerb size and delivered to your site.
Get a price in County Londonderry
Send your postcode and kerb size for a fixed written quote.
Choosing replacement roof lanterns in County Londonderry
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
Across County Londonderry, the shortest day brings around 7h 10m of daylight and the midsummer sun reaches about 58.5° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.
- Reuse the kerb if sound and to size
- Often a one-day swap on a sound kerb
- Energy standards for replacements explained
- Replace old polycarbonate with glass
Delivery and fitting in County Londonderry
Delivery to Northern Ireland is by arrangement: we confirm the carrier, any sea-freight charge and the date on your quote 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.
Replacement roof lantern prices
Typical guide prices for replacement roof lanterns, supply only and including VAT:
| 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 |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 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 |
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 County Londonderry
In Northern Ireland, the Building Regulations (NI) 2012 and Technical Booklet F1 set the energy standards for dwellings.
Permitted development is set by the Planning (General Permitted Development) Order (NI) 2015, with planning handled by your district council.
Building regulations are checked by your district council's building control service. Replacement and new rooflights are controlled work in most cases. Your council's building control service will confirm whether an application is needed.
Sources: Building Regulations, Department of Finance NI · Planning permission: when to apply, nidirect
Replacement roof lanterns in County Londonderry: questions
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.
My old lantern leaks. Is it the lantern or the roof?
Often the roof or kerb detailing. A survey or close inspection will tell. If the lantern is the problem, replacing it is usually better value than repairing old polycarbonate.
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
Who checks building regulations for a lantern in County Londonderry?
Your district council's building control service. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.