Replacement roof lanterns in Falmouth
Buy replacement roof lanterns for homes in Falmouth and across Cornwall. Choose a standard size or have one made to your kerb, see a guide price straight away, then get a fixed written quote with delivery to your TR11 address.
Price a replacement roof lantern for Falmouth
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Falmouth homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
At 50.15°N, Falmouth sees roughly 8h 03m of daylight in late December and 16h 24m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Supply only or a fitting quote
- Reuse the kerb if sound and to size
- Warmer, quieter, brighter
Delivery and fitting in Falmouth
Your quote includes delivery to Falmouth 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 TR11 and quote a fixed price after seeing photos or surveying.
Delivery to TR11 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Falmouth
Guide prices for common replacement roof lantern sizes, including 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 |
| 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 Falmouth
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.
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 Falmouth 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 Falmouth
My old lantern leaks. Is it the lantern or the roof?
Often the roof or kerb detailing. A survey or close inspection will tell. If the lantern is the problem, replacing it is usually better value than repairing old polycarbonate.
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
Who checks building regulations for a lantern in Falmouth?
Your local authority building control team or a registered building control approver. For a lantern in a new extension it forms part of the extension's approval; replacements in existing homes have their own rules.
How quickly can I get a roof lantern in Falmouth?
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 TR11.