Replacement roof lanterns in Southampton
We supply replacement roof lanterns to Southampton (SO14) and the rest of Hampshire: 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 Southampton
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Southampton homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
In midsummer the noon sun stands about 62.5° high over Southampton, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Replace old polycarbonate with glass
- Often a one-day swap on a sound kerb
- Energy standards for replacements explained
Delivery and fitting in Southampton
Your quote includes delivery to Southampton 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 SO14 and quote a fixed price after seeing photos or surveying.
Delivery to SO14 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Southampton
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 |
| 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 Southampton
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 Southampton 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 Southampton
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 I need planning permission for a roof lantern in Southampton?
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.
Do you deliver roof lanterns to Southampton?
Yes. Delivery to Southampton (SO14) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.