Flat rooflights in St Austell
We supply flat rooflights to St Austell (PL25) and the rest of Cornwall: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a flat rooflight for St Austell
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for St Austell homes
A single near-flat pane on an upstand: minimal, low and discreet.
Winter daylight in St Austell lasts about 8h 01m, against 16h 26m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Sized to your upstand
- Usually cheaper than a lantern
- Minimal, frameless-looking from inside
Delivery and fitting in St Austell
Your quote includes delivery to St Austell at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in St Austell can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to PL25 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for St Austell
Typical guide prices for flat rooflights, supply only and including VAT:
| 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 × 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 |
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 St Austell
For homes in England, a new or replacement rooflight should achieve a U-value of 2.2 W/m²K or better in the horizontal position, under Approved Document L.
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 St Austell 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 St Austell
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
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 St Austell?
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.
How quickly can I get a roof lantern in St Austell?
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 PL25.