Replacement roof lanterns in Launceston
We supply replacement roof lanterns to Launceston (PL15) 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 a replacement roof lantern for Launceston
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Launceston homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
On the shortest day Launceston gets about 7h 58m of daylight, with the sun only 15.9° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Replace old polycarbonate with glass
- Energy standards for replacements explained
- Often a one-day swap on a sound kerb
Delivery and fitting in Launceston
Your quote includes delivery to Launceston at a confirmed price, usually to the kerbside or driveway on pallets.
If you would like us to fit it, we will check fitting cover for PL15 and quote a fixed price after seeing photos or surveying.
Delivery to PL15 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Launceston
Typical guide prices for replacement roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 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 Launceston
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.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in Launceston 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 Launceston
Can I replace polycarbonate panels with glass?
Usually not in the old frame: glass is much heavier than polycarbonate and the frame was not designed for it. Replacing the whole lantern is the safer route.
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
Do you deliver roof lanterns to Launceston?
Yes. Delivery to Launceston (PL15) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Is it worth having solar-control glass in Launceston?
With the midsummer sun about 62.8° high at noon, roof glass in Launceston gets strong summer sun. Solar control is recommended for large or south-facing lanterns.