Rectangular roof lanterns in Great Sankey
From a small lantern over a hallway to a long one above a kitchen island, we quote rectangular roof lanterns for Great Sankey homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a rectangular roof lantern for Great Sankey
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Great Sankey homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
At 53.39°N, Great Sankey sees roughly 7h 29m of daylight in late December and 17h 01m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Standard sizes or made to your kerb
- The most size options of any lantern shape
- Ridge along the long axis, four glazed slopes
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.
Fitting in Great Sankey can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to WA5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for Great Sankey
What rectangular 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 Great Sankey
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.
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
Does a longer lantern need extra support?
Long lanterns use intermediate rafters inside the lantern itself. The roof structure around the opening must be designed to carry the lantern's weight; your builder or engineer sizes the trimmers.
Which way should the ridge run?
The ridge runs along the longer side. On a square opening there is no ridge and the lantern becomes a pyramid.
Can you fit a roof lantern in Great Sankey?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.
Who checks building regulations for a lantern in Great Sankey?
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.