Roof lantern upstands in Bridport
For roof lantern upstands in Bridport, start with the guide prices on this page, then send photos and measurements for a fixed written quote covering DT6.
Price a roof lantern upstand for Bridport
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for Bridport projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
At 50.73°N, Bridport sees roughly 7h 57m of daylight in late December and 16h 30m in late June. A lantern faces the bright overhead sky all year, so it brings in useful light even on the short, grey days.
- Prefabricated insulated or site-built timber
- Ordered with your lantern if you wish
- Lifts the lantern clear of the roof finish
Delivery and fitting in Bridport
Your quote includes delivery to Bridport at a confirmed price, usually to the kerbside or driveway on pallets.
Fitting in Bridport can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to DT6 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for Bridport
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 Bridport
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.
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 in Bridport 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 Bridport
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.
Who makes the upstand weatherproof?
Your roofer, by dressing the roof membrane up the outside of the upstand. The lantern then sits over it.
Do I need planning permission for a roof lantern in Bridport?
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.
Who checks building regulations for a lantern in Bridport?
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.