Self-cleaning glass roof lanterns in Dorchester
Order self-cleaning glass roof lanterns for delivery to Dorchester and nearby Weymouth 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 self-cleaning glass roof lantern for Dorchester
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Self-cleaning glass roof lanterns for Dorchester homes
A coated outer pane that breaks down dirt in daylight and lets rain wash it away.
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.
- Coated outer pane loosens dirt in daylight
- Rain sheets off and carries dirt away
- Standard on most lantern ranges
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.
Fitting in Dorchester can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to DT1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Self-cleaning glass roof lantern prices for Dorchester
What self-cleaning glass roof lanterns cost in common sizes (guide, inc VAT, supply only):
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1000 × 1500 mm | 1.50 m² | £1,295–£1,495£1,079 ex VAT from | Configure |
| 1000 × 2000 mm | 2.00 m² | £1,495–£1,795£1,246 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 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 Dorchester
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 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
Does it work under trees?
Less well. Sap and leaf debris build up faster than daylight and rain can deal with them, so lanterns under trees need more regular rinsing.
Can the coating be damaged?
Yes, by abrasive cleaning, some chemicals and silicone. Follow the care instructions supplied with your lantern.
Who checks building regulations for a lantern in Dorchester?
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.
How quickly can I get a roof lantern in Dorchester?
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 DT1.