Opening roof lanterns in Portishead
Order opening roof lanterns for delivery to Portishead and nearby Nailsea and Clevedon. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price an opening roof lantern for Portishead
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Opening roof lanterns for Portishead homes
Electric opening vents to let warm air out at the highest point of the room.
On the shortest day Portishead gets about 7h 50m of daylight, with the sun only 15.1° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Plan the power supply early
- One or two vents depending on size
- Electric vents at the room's highest point
Delivery and fitting in Portishead
We confirm the delivery cost and date for BS20 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Portishead can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to BS20 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Opening roof lantern prices for Portishead
Guide prices for common opening roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 2000 mm | 3.00 m² | £2,690–£2,990£2,242 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 Portishead
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
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 Portishead 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 Portishead
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.
Does an opening vent let insects in?
When open, yes, as with any window. Some ranges offer fly screens.
Is it worth having solar-control glass in Portishead?
With the midsummer sun about 62.0° high at noon, roof glass in Portishead gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Can you fit a roof lantern in Portishead?
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.