Roof lantern installation in Carshalton
We quote roof lantern installation for Carshalton and the rest of Greater London, matched to the exact size of your lantern, with the price confirmed in writing before you order.
Price lantern fitting for Carshalton
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern fitting for Carshalton homes
Optional fitting by installers working under S&K, quoted for your postcode.
At 51.37°N, Carshalton sees roughly 7h 51m of daylight in late December and 16h 37m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Fixed price in writing before work starts
- Optional fitting quoted for your postcode
- Weathertight check on completion
Delivery and fitting in Carshalton
Your quote includes delivery to Carshalton at a confirmed price, usually to the kerbside or driveway on pallets.
If you would like us to fit it, we will check fitting cover for SM5 and quote a fixed price after seeing photos or surveying.
Delivery to SM5 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern installation guide prices for Carshalton
Guide prices for fitting only, by lantern size, including VAT (the lantern is priced separately):
| Lantern size | Fit to ready upstand | Replace existing lantern |
|---|---|---|
| 1000 × 2000 mm | £595 | £1,095 |
| 1500 × 1500 mm | £645 | £1,095 |
| 1000 × 2500 mm | £645 | £1,095 |
| 1000 × 3000 mm | £695 | £1,195 |
Fitting guide prices include VAT and exclude the lantern, access equipment and any roof or kerb repairs. New openings are priced after a survey. Your fixed price is confirmed in writing before work starts.
Planning and building regulations for Carshalton
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.
Planning-wise, a lantern on a new extension is judged as part of that extension, while one added to an existing roof can fall outside permitted development if it stands more than 150 mm proud.
Building regulations in Carshalton 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 Carshalton
Can you build the upstand as well?
We can quote for upstands and associated roofing on a survey basis.
How long does fitting take?
A lantern on a ready upstand is often fitted in a few hours. Replacement and new openings take longer.
Can you fit a roof lantern in Carshalton?
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.
Who checks building regulations for a lantern in Carshalton?
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.