Replacement roof lanterns in Prescot
Whether your Prescot extension is still on paper or the roof is already on, we can price a replacement roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a replacement roof lantern for Prescot
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Prescot homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
Winter daylight in Prescot lasts about 7h 29m, against 17h 01m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Often a one-day swap on a sound kerb
- Energy standards for replacements explained
- Replace old polycarbonate with glass
Delivery and fitting in Prescot
Your quote includes delivery to Prescot 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 L34 and quote a fixed price after seeing photos or surveying.
Delivery to L34 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Prescot
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 Prescot
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 Prescot 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 Prescot
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.
Will a new lantern be warmer?
A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.
How quickly can I get a roof lantern in Prescot?
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 L34.
Who checks building regulations for a lantern in Prescot?
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.