Opening roof lanterns in Lancaster
Planning an extension in Lancaster? An opening roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price an opening roof lantern for Lancaster
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Opening roof lanterns for Lancaster homes
Electric opening vents to let warm air out at the highest point of the room.
At 54.05°N, Lancaster sees roughly 7h 22m of daylight in late December and 17h 09m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Plan the power supply early
- Switch or remote control
- Helps keep kitchens cool in summer
Delivery and fitting in Lancaster
Delivery to LA1 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Fitting in Lancaster can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to LA1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Opening roof lantern prices for Lancaster
Typical guide prices for opening roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,990–£2,190£1,658 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £2,190–£2,490£1,825 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,890–£4,390£3,242 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,790–£5,490£3,992 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour, including one electric vent. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Lancaster
England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.
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 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
Does an opening vent let insects in?
When open, yes, as with any window. Some ranges offer fly screens.
What happens if it rains while the vent is open?
With a rain sensor the vent closes automatically. Without one it stays where you left it, so a sensor is worth having.
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.
How quickly can I get a roof lantern in Lancaster?
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 LA1.