Replacement roof lanterns in Great Sankey
Planning an extension in Great Sankey? A replacement roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a replacement roof lantern for Great Sankey
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Replacement roof lanterns for Great Sankey homes
Swap a tired, leaking or polycarbonate lantern for modern double glazing.
In midsummer the noon sun stands about 60.0° high over Great Sankey, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Supply only or a fitting quote
- Warmer, quieter, brighter
- Replace old polycarbonate with glass
Delivery and fitting in Great Sankey
Your quote includes delivery to Great Sankey 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 WA5 and quote a fixed price after seeing photos or surveying.
Delivery to WA5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Replacement roof lantern prices for Great Sankey
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 Great Sankey
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.
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 Great Sankey 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 Great Sankey
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.
Do I need planning permission for a roof lantern in Great Sankey?
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.
Is it worth having solar-control glass in Great Sankey?
With the midsummer sun about 60.0° high at noon, roof glass in Great Sankey gets strong summer sun. Solar control is recommended for large or south-facing lanterns.