Opening roof lanterns in St Austell
We supply opening roof lanterns to St Austell (PL25) and the rest of Cornwall: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price an opening roof lantern for St Austell
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Opening roof lanterns for St Austell homes
Electric opening vents to let warm air out at the highest point of the room.
In midsummer the noon sun stands about 63.1° high over St Austell, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Switch or remote control
- Rain sensor closes it automatically
- Helps keep kitchens cool in summer
Delivery and fitting in St Austell
We confirm the delivery cost and date for PL25 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in St Austell can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to PL25 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Opening roof lantern prices for St Austell
Guide prices for common opening roof lantern sizes, including VAT, supply only:
| 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 |
| 1500 × 2000 mm | 3.00 m² | £2,690–£2,990£2,242 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 St Austell
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 St Austell 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 St Austell
Can a vent be added later?
Usually not to an existing fixed lantern. Decide before ordering.
Can I have a manual opening vent?
Manual vents are rare on lanterns because they are out of reach. Electric operation is standard.
Can you fit a roof lantern in St Austell?
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 you deliver roof lanterns to St Austell?
Yes. Delivery to St Austell (PL25) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.