Replacement roof lanterns in Stevenage
Looking for a replacement roof lantern in Stevenage? We price it to your kerb size, confirm the fixed price in writing and deliver to SG1 and the surrounding postcodes, ready for your builder to fit or for us to quote fitting.
Price a replacement roof lantern for Stevenage
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Stevenage homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
Winter daylight in Stevenage lasts about 7h 45m, against 16h 43m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Energy standards for replacements explained
- Warmer, quieter, brighter
- Often a one-day swap on a sound kerb
Delivery and fitting in Stevenage
We confirm the delivery cost and date for SG1 on your quote. Lanterns arrive palletised, with the glass packed separately.
If you would like us to fit it, we will check fitting cover for SG1 and quote a fixed price after seeing photos or surveying.
Delivery to SG1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Stevenage
What replacement 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 |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 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 Stevenage
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 Stevenage 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 Stevenage
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
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.
Do you deliver roof lanterns to Stevenage?
Yes. Delivery to Stevenage (SG1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Do I need planning permission for a roof lantern in Stevenage?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.