Replacement roof lanterns in Thatcham
Planning an extension in Thatcham? 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 Thatcham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Thatcham homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
Winter daylight in Thatcham lasts about 7h 51m, against 16h 37m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Replace old polycarbonate with glass
- Supply only or a fitting quote
- Often a one-day swap on a sound kerb
Delivery and fitting in Thatcham
Delivery to RG18 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Fitting in Thatcham can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to RG18 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Thatcham
Typical guide prices for replacement roof lanterns, supply only and including VAT:
| 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 Thatcham
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 Thatcham 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 Thatcham
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
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.
Do you deliver roof lanterns to Thatcham?
Yes. Delivery to Thatcham (RG18) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Can you fit a roof lantern in Thatcham?
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.