Bespoke roof lanterns in Penzance
Whether your Penzance extension is still on paper or the roof is already on, we can price a bespoke roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a bespoke roof lantern for Penzance
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Bespoke roof lanterns for Penzance homes
Made to your exact kerb size, including long, gable-ended and L-shaped designs.
On the shortest day Penzance gets about 8h 03m of daylight, with the sun only 16.4° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Gable-ended and L-shaped designs on request
- Made to your exact external kerb size
- Approval drawing before manufacture
Delivery and fitting in Penzance
We confirm the delivery cost and date for TR18 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Penzance can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to TR18 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Bespoke roof lantern prices for Penzance
What bespoke roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 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 Penzance
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 Penzance 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 Penzance
Can I return a bespoke lantern?
No. Goods made to your specification are excluded from the 14-day cancellation right under the Consumer Contracts Regulations. Your other legal rights, for example if the lantern is faulty, are not affected.
How accurate do my measurements need to be?
Accurate to the millimetre on the outside of the kerb, measured at several points. Kerbs are rarely perfectly square, so measure both diagonals too. Our measuring guide shows how.
Is it worth having solar-control glass in Penzance?
With the midsummer sun about 63.3° high at noon, roof glass in Penzance gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
How quickly can I get a roof lantern in Penzance?
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 TR18.