Roof lantern upstands in Finchley
Need a roof lantern upstand in Finchley? Send your postcode and lantern size and we will quote a fixed price in writing, with delivery to N3 or fitting where we have cover.
Price a roof lantern upstand for Finchley
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Finchley projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
On the shortest day Finchley gets about 7h 49m of daylight, with the sun only 15.0° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Level and square for a correct fit
- Ordered with your lantern if you wish
- Roof membrane dressed up the outside
Delivery and fitting in Finchley
We confirm the delivery cost and date for N3 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Finchley can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to N3 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Finchley
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1000 × 1500 mm | 5.0 m | £245£204 ex VAT |
| 1000 × 2000 mm | 6.0 m | £295£246 ex VAT |
| 1000 × 2500 mm | 7.0 m | £295£246 ex VAT |
| 1000 × 3000 mm | 8.0 m | £345£288 ex VAT |
Guide prices include VAT at 20%, upstand only, supply only. Upstands are made to match the lantern's external size; your fixed price is confirmed in writing before you order.
Planning and building regulations for Finchley
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 Finchley 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 Finchley
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
What height should my upstand be?
High enough to keep water away from the lantern seal, commonly at least 150 mm above the finished roof surface. Follow the instructions for your chosen range.
Is it worth having solar-control glass in Finchley?
With the midsummer sun about 61.8° high at noon, roof glass in Finchley gets strong summer sun. Solar control is recommended for large or south-facing lanterns.
Do I need planning permission for a roof lantern in Finchley?
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.