Opening roof lanterns in Canterbury
Whether your Canterbury extension is still on paper or the roof is already on, we can price an opening roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price an opening roof lantern for Canterbury
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Opening roof lanterns for Canterbury homes
Electric opening vents to let warm air out at the highest point of the room.
In midsummer the noon sun stands about 62.2° high over Canterbury, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Plan the power supply early
- One or two vents depending on size
- Electric vents at the room's highest point
Delivery and fitting in Canterbury
Your quote includes delivery to Canterbury at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Canterbury can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to CT1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Opening roof lantern prices for Canterbury
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 |
| 1500 × 2500 mm | 3.75 m² | £2,990–£3,390£2,492 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 Canterbury
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 Canterbury 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 Canterbury
Does an opening vent let insects in?
When open, yes, as with any window. Some ranges offer fly screens.
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 Canterbury?
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.
Is it worth having solar-control glass in Canterbury?
With the midsummer sun about 62.2° high at noon, roof glass in Canterbury gets strong summer sun. Solar control is recommended for large or south-facing lanterns.