Replacement roof lanterns in Tonbridge
Planning an extension in Tonbridge? A replacement roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a replacement roof lantern for Tonbridge
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Tonbridge homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
At 51.2°N, Tonbridge sees roughly 7h 53m of daylight in late December and 16h 35m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Warmer, quieter, brighter
- Reuse the kerb if sound and to size
- Replace old polycarbonate with glass
Delivery and fitting in Tonbridge
Delivery to TN9 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for TN9 and quote a fixed price after seeing photos or surveying.
Delivery to TN9 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Tonbridge
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 |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | 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 |
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 Tonbridge
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.
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 Tonbridge 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 Tonbridge
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.
How long does replacement take on site?
For a like-for-like swap on a sound kerb, often a day. Kerb or roof repairs add time.
Can you fit a roof lantern in Tonbridge?
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.
How quickly can I get a roof lantern in Tonbridge?
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 TN9.