Flat rooflights in Coulsdon
Whether your Coulsdon 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 Coulsdon
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Coulsdon homes
A single near-flat pane on an upstand: minimal, low and discreet.
At 51.32°N, Coulsdon sees roughly 7h 51m of daylight in late December and 16h 36m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Usually cheaper than a lantern
- Very low profile from outside
- Single glazed unit with a slight fall
Delivery and fitting in Coulsdon
Delivery to CR5 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 CR5 and quote a fixed price after seeing photos or surveying.
Delivery to CR5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Coulsdon
Guide prices for common flat rooflight sizes, including 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 Coulsdon
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 Coulsdon 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 Coulsdon
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
Are flat rooflights cheaper than lanterns?
Usually, size for size. They use one glass unit and a simple frame.
Can you fit a roof lantern in Coulsdon?
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.
How quickly can I get a roof lantern in Coulsdon?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for CR5.