Flat rooflights in Lancaster
We supply flat rooflights to Lancaster (LA1) and the rest of Lancashire: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a flat rooflight for Lancaster
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Lancaster homes
A single near-flat pane on an upstand: minimal, low and discreet.
Winter daylight in Lancaster lasts about 7h 22m, against 17h 09m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Very low profile from outside
- Fixed or electric opening versions
- Usually cheaper than a lantern
Delivery and fitting in Lancaster
We confirm the delivery cost and date for LA1 on your quote. Lanterns arrive palletised, with the glass packed separately.
If you would like us to fit it, we will check fitting cover for LA1 and quote a fixed price after seeing photos or surveying.
Delivery to LA1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Lancaster
Guide prices for common flat rooflight sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £595–£695£496 ex VAT from | Configure |
| 1000 × 1500 mm | 1.50 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £845–£995£704 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £895–£1,095£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 Lancaster
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 Lancaster 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 Lancaster
Do flat rooflights leak?
They should not, provided they are installed on a properly flashed upstand with the right fall and the seals are maintained.
Are flat rooflights cheaper than lanterns?
Usually, size for size. They use one glass unit and a simple frame.
Who checks building regulations for a lantern in Lancaster?
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.
Do you deliver roof lanterns to Lancaster?
Yes. Delivery to Lancaster (LA1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.