Roof lantern installation in Isleworth
Ordering roof lantern installation for a project in Isleworth? Tell us the lantern size and roof details and we will confirm the price, lead time and how it reaches TW7.
Price lantern fitting for Isleworth
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern fitting for Isleworth homes
Optional fitting by installers working under S&K, quoted for your postcode.
Winter daylight in Isleworth lasts about 7h 50m, against 16h 38m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Optional fitting quoted for your postcode
- Installers working under S&K
- Ready upstand, replacement or new opening
Delivery and fitting in Isleworth
Delivery to TW7 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Isleworth before quoting.
Delivery to TW7 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern installation guide prices for Isleworth
Guide prices for fitting only, by lantern size, including VAT (the lantern is priced separately):
| Lantern size | Fit to ready upstand | Replace existing lantern |
|---|---|---|
| 1200 × 1200 mm | £545 | £995 |
| 1000 × 1500 mm | £545 | £995 |
| 1000 × 2000 mm | £595 | £1,095 |
| 1000 × 2500 mm | £645 | £1,095 |
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 Isleworth
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 Isleworth 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 Isleworth
Can you build the upstand as well?
We can quote for upstands and associated roofing on a survey basis.
Who deals with building control?
We will explain on your quote how building regulations will be met for your job and who is responsible for any notification.
Who checks building regulations for a lantern in Isleworth?
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.
Do I need planning permission for a roof lantern in Isleworth?
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.