Bespoke roof lanterns in Chelmsford
Planning an extension in Chelmsford? A bespoke roof lantern is one of the quickest ways to bring daylight into the middle of the room. Use the configurator for a guide price, then send your kerb size for a fixed quote and delivery date.
Price a bespoke roof lantern for Chelmsford
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Bespoke roof lanterns for Chelmsford homes
Made to your exact kerb size, including long, gable-ended and L-shaped designs.
Winter daylight in Chelmsford lasts about 7h 47m, against 16h 41m in midsummer. Glass in the roof makes the most of the short days, and the right glass keeps the long ones comfortable.
- Gable-ended and L-shaped designs on request
- Made to your exact external kerb size
- Choose bar layout and vent position
Delivery and fitting in Chelmsford
We confirm the delivery cost and date for CM1 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Chelmsford can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to CM1 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Bespoke roof lantern prices for Chelmsford
Guide prices for common bespoke roof lantern sizes, including 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 |
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 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 Chelmsford
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 Chelmsford 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 Chelmsford
How accurate do my measurements need to be?
Accurate to the millimetre on the outside of the kerb, measured at several points. Kerbs are rarely perfectly square, so measure both diagonals too. Our measuring guide shows how.
Will I see a drawing before it is made?
For made-to-measure and special shapes, yes: the order is based on a drawing you approve, so the size you check is the size that gets made.
Do you deliver roof lanterns to Chelmsford?
Yes. Delivery to Chelmsford (CM1) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Can you fit a roof lantern in Chelmsford?
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.