Flat rooflights in Westhoughton
Whether your Westhoughton extension is still on paper or the roof is already on, we can price a flat rooflight to suit it. Standard sizes cost less and arrive sooner; made-to-measure fits a kerb that is already built.
Price a flat rooflight for Westhoughton
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Westhoughton homes
A single near-flat pane on an upstand: minimal, low and discreet.
On the shortest day Westhoughton gets about 7h 27m of daylight, with the sun only 13.0° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Usually cheaper than a lantern
- Very low profile from outside
- Fixed or electric opening versions
Delivery and fitting in Westhoughton
Your quote includes delivery to Westhoughton 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 Westhoughton before quoting.
Delivery to BL5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Westhoughton
What flat rooflights cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1200 × 1200 mm | 1.44 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 1500 mm | 1.50 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £845–£995£704 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £895–£1,095£746 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 Westhoughton
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 Westhoughton 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 Westhoughton
Can I walk on a flat rooflight?
Only if it is a walk-on rooflight designed for foot traffic. Standard rooflights are not designed to be walked on.
Do flat rooflights leak?
They should not, provided they are installed on a properly flashed upstand with the right fall and the seals are maintained.
Who checks building regulations for a lantern in Westhoughton?
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.
Can you fit a roof lantern in Westhoughton?
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.