Flat rooflights in Weymouth
Order flat rooflights for delivery to Weymouth and nearby Dorchester and Bridport. Every lantern is checked against your measurements before it is ordered, and the price on your quote is fixed for the specification shown; any extra work is agreed with you first.
Price a flat rooflight for Weymouth
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Flat rooflights for Weymouth homes
A single near-flat pane on an upstand: minimal, low and discreet.
Winter daylight in Weymouth lasts about 7h 58m, against 16h 29m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Sized to your upstand
- Very low profile from outside
- Usually cheaper than a lantern
Delivery and fitting in Weymouth
Your quote includes delivery to Weymouth at a confirmed price, usually to the kerbside or driveway on pallets.
Need it fitted? Send your postcode and we will confirm whether we have fitting cover in Weymouth before quoting.
Delivery to DT4 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Flat rooflight prices for Weymouth
Guide prices for common flat rooflight sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1000 mm | 1.00 m² | £595–£695£496 ex VAT from | Configure |
| 1200 × 1200 mm | 1.44 m² | £695–£845£579 ex VAT from | Configure |
| 1000 × 1500 mm | 1.50 m² | £695–£845£579 ex VAT from | Configure |
| 1500 × 1500 mm | 2.25 m² | £895–£1,095£746 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium 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 Weymouth
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 Weymouth 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 Weymouth
Can a flat rooflight open?
Some ranges offer electric opening versions. Ask for availability for your size.
Are flat rooflights cheaper than lanterns?
Usually, size for size. They use one glass unit and a simple frame.
How quickly can I get a roof lantern in Weymouth?
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 DT4.
Who checks building regulations for a lantern in Weymouth?
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.