uPVC roof lanterns in Dorchester
We supply uPVC roof lanterns to Dorchester (DT1) and the rest of Dorset: sized in millimetres to your upstand, priced up front and delivered on pallets. Fitting can be quoted separately if you need it.
Price a uPVC roof lantern for Dorchester
Postcode and kerb size first, then your details. We reply with a fixed written quote.
uPVC roof lanterns for Dorchester homes
A lower-cost lantern with white uPVC frames for smaller openings.
On the shortest day Dorchester gets about 7h 57m of daylight, with the sun only 15.8° above the horizon at noon. Light from the sky overhead is the brightest available in winter, which is exactly what a roof lantern collects.
- Lower cost than aluminium
- Suits smaller openings and garden rooms
- A sensible choice for budget projects
Delivery and fitting in Dorchester
Delivery to DT1 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 DT1 and quote a fixed price after seeing photos or surveying.
Delivery to DT1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
uPVC roof lantern prices for Dorchester
Typical guide prices for uPVC roof lanterns, supply only and including VAT:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £845–£995£704 ex VAT from | Configure |
| 1000 × 1500 mm | 1.50 m² | £1,045–£1,295£871 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,195–£1,395£996 ex VAT from | Configure |
| 1500 × 2000 mm | 3.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, uPVC with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Dorchester
England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.
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 Dorchester 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 Dorchester
Will white uPVC yellow over time?
Modern uPVC profiles are UV-stabilised and should stay white with normal cleaning. Very old lanterns, especially with polycarbonate panels, are the ones that discolour.
Is uPVC heavier?
Weight is dominated by the glass, so the difference is small.
Can you fit a roof lantern in Dorchester?
We can quote for fitting where we have cover. Send your postcode and photos of the roof and kerb, and we will confirm before quoting.
Do you deliver roof lanterns to Dorchester?
Yes. Delivery to Dorchester (DT1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.