Flat rooflights in Horsham
From a small lantern over a hallway to a long one above a kitchen island, we quote flat rooflights for Horsham homes to the exact kerb size, with glass and colour choices set out clearly before you commit.
Price a flat rooflight for Horsham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Horsham homes
A single near-flat pane on an upstand: minimal, low and discreet.
In midsummer the noon sun stands about 62.4° high over Horsham, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Usually cheaper than a lantern
- Minimal, frameless-looking from inside
- Single glazed unit with a slight fall
Delivery and fitting in Horsham
We confirm the delivery cost and date for RH12 on your quote. Lanterns arrive palletised, with the glass packed separately.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Horsham before quoting.
Delivery to RH12 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Horsham
Guide prices for common flat rooflight sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £595–£695£496 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 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 Horsham
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.
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 Horsham 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 Horsham
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.
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
Can you fit a roof lantern in Horsham?
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.
Do I need planning permission for a roof lantern in Horsham?
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.