Roof lantern upstands in Hertfordshire

Choosing roof lantern upstands in Hertfordshire

Insulated upstands and kerbs that raise the lantern above the roof finish.

Across Hertfordshire, the shortest day brings around 7h 47m of daylight and the midsummer sun reaches about 61.7° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

• Made to match the lantern's external size
• Lifts the lantern clear of the roof finish
• Roof membrane dressed up the outside
• Level and square for a correct fit

Delivery and fitting in Hertfordshire

Delivery to mainland addresses here is quoted for your postcode and confirmed in writing before you order.

Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.

Roof lantern upstands guide prices

Guide prices for an insulated upstand on its own, by lantern size, including 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 in Hertfordshire

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 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

Roof lantern upstands in Hertfordshire: questions