Replacement roof lanterns in Preston
Whether your Preston 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 Preston
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Preston homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
Winter daylight in Preston lasts about 7h 25m, against 17h 06m 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
- Warmer, quieter, brighter
- Reuse the kerb if sound and to size
Delivery and fitting in Preston
We confirm the delivery cost and date for PR1 on your quote. Lanterns arrive palletised, with the glass packed separately.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Preston before quoting.
Delivery to PR1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Preston
What replacement roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | 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 |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 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 Preston
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.
Lanterns on permitted development extensions are part of the extension's height limits. Adding one to an existing roof is different: over 150 mm of projection can mean a planning application.
Building regulations in Preston 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 Preston
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.
Who checks building regulations for a lantern in Preston?
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.
Is it worth having solar-control glass in Preston?
With the midsummer sun about 59.7° high at noon, roof glass in Preston gets strong summer sun. Solar control is recommended for large or south-facing lanterns.