Replacement roof lanterns in Cambridge
We supply replacement roof lanterns to Cambridge (CB1) and the rest of Cambridgeshire: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a replacement roof lantern for Cambridge
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Cambridge homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
On the shortest day Cambridge gets about 7h 42m of daylight, with the sun only 14.4° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Energy standards for replacements explained
- Warmer, quieter, brighter
- Replace old polycarbonate with glass
Delivery and fitting in Cambridge
Your quote includes delivery to Cambridge at a confirmed price, usually to the kerbside or driveway on pallets.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Cambridge before quoting.
Delivery to CB1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Cambridge
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 |
| 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 Cambridge
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Cambridge 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 Cambridge
My old lantern leaks. Is it the lantern or the roof?
Often the roof or kerb detailing. A survey or close inspection will tell. If the lantern is the problem, replacing it is usually better value than repairing old 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 Cambridge?
Yes. Delivery to Cambridge (CB1) 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 Cambridge?
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.