Opening roof lanterns in Altrincham
Whether your Altrincham extension is still on paper or the roof is already on, we can price an opening roof lantern to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price an opening roof lantern for Altrincham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Opening roof lanterns for Altrincham homes
Electric opening vents to let warm air out at the highest point of the room.
Winter daylight in Altrincham lasts about 7h 29m, against 17h 01m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Electric vents at the room's highest point
- Helps keep kitchens cool in summer
- Plan the power supply early
Delivery and fitting in Altrincham
Delivery to WA14 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for WA14 and quote a fixed price after seeing photos or surveying.
Delivery to WA14 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Opening roof lantern prices for Altrincham
Typical guide prices for opening roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,990–£2,190£1,658 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £2,190–£2,490£1,825 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,890–£4,390£3,242 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,790–£5,490£3,992 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour, including one electric vent. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Altrincham
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.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
Building regulations in Altrincham 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 Altrincham
Can a vent be added later?
Usually not to an existing fixed lantern. Decide before ordering.
Does an opening vent let insects in?
When open, yes, as with any window. Some ranges offer fly screens.
Is it worth having solar-control glass in Altrincham?
With the midsummer sun about 60.1° high at noon, roof glass in Altrincham gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do I need planning permission for a roof lantern in Altrincham?
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.