Roof lantern upstands in St Albans
We quote roof lantern upstands for St Albans and the rest of Hertfordshire, matched to the exact size of your lantern, with the price confirmed in writing before you order.
Price a roof lantern upstand for St Albans
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Lantern upstands for St Albans projects
Insulated upstands and kerbs that raise the lantern above the roof finish.
In midsummer the noon sun stands about 61.7° high over St Albans, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- Lifts the lantern clear of the roof finish
- Prefabricated insulated or site-built timber
- Made to match the lantern's external size
Delivery and fitting in St Albans
Delivery to AL1 is quoted for your postcode and arrives on pallets at the kerbside, so plan enough people to unload.
If you would like us to fit it, we will check fitting cover for AL1 and quote a fixed price after seeing photos or surveying.
Delivery to AL1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Roof lantern upstands guide prices for St Albans
Guide prices for an insulated upstand on its own, by lantern size, including VAT:
| Lantern kerb size | Perimeter | Insulated upstand, guide |
|---|---|---|
| 1000 × 2000 mm | 6.0 m | £295£246 ex VAT |
| 1500 × 1500 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 St Albans
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 St Albans 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 St Albans
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.
Do I need planning permission for a roof lantern in St Albans?
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.
How quickly can I get a roof lantern in St Albans?
Stock sizes are typically ready in 5–10 working days, made-to-measure in 3–4 weeks, plus delivery. Your quote gives the date for AL1.