Roof lantern upstands in Amersham
Ordering a roof lantern upstand for a project in Amersham? Tell us the lantern size and roof details and we will confirm the price, lead time and how it reaches HP7.
Price a roof lantern upstand for Amersham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Amersham projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
On the shortest day Amersham gets about 7h 48m of daylight, with the sun only 14.9° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Roof membrane dressed up the outside
- Prefabricated insulated or site-built timber
- Ordered with your lantern if you wish
Delivery and fitting in Amersham
We confirm the delivery cost and date for HP7 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Amersham can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to HP7 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Amersham
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1500 × 1500 mm | 6.0 m | £295£246 ex VAT |
| 1500 × 2000 mm | 7.0 m | £295£246 ex VAT |
| 1500 × 2500 mm | 8.0 m | £345£288 ex VAT |
| 1500 × 3000 mm | 9.0 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 Amersham
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 Amersham 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 Amersham
Do I need an upstand for a roof lantern?
Yes. Lanterns are designed to sit on an upstand, never directly on the roof deck.
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
Who checks building regulations for a lantern in Amersham?
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 you deliver roof lanterns to Amersham?
Yes. Delivery to Amersham (HP7) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.