Roof lanterns delivered across mainland Britain · fitting quoted on requestCall 0800 088 6248
BUYROOFLANTERNS.UK
0800 088 6248Price my lantern
RectangularSquare & pyramidContemporaryTraditionalLargeSmallMade to measureOrangeryAluminiumuPVCAnthracite greyBlackWhiteSelf-cleaning glassSolar controlTriple glazedOpening ventsFlat rooflightsUpstands & kerbsSupply onlyReplacementFittingAll sizes
England · Replacement

Replacement roof lanterns in Hertfordshire

Whether you are in Watford or elsewhere in Hertfordshire, the process is the same: configure your lantern, get a guide price, then a fixed quote and a delivery date.

AreaHertfordshire
NationEngland
Towns listed18
Guide price from£1,295
Configure and priceCall 0800 088 6248

Get a price in Hertfordshire

Send your postcode and kerb size for a fixed written quote.

Enter a valid UK postcode.
Enter your name.
Enter a phone number.
Enter a valid email address.

We use your details only to reply to this enquiry. See our privacy notice.

Choosing replacement roof lanterns in Hertfordshire

Swap a tired, leaking or polycarbonate lantern for modern double glazing.

Across Hertfordshire, the shortest day brings around 7h 47m of daylight and the midsummer sun reaches about 61.7° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

  • Supply only or a fitting quote
  • Often a one-day swap on a sound kerb
  • Energy standards for replacements explained
  • Replace old polycarbonate with glass

Delivery and fitting in Hertfordshire

Delivery to mainland addresses here is quoted for your postcode and confirmed in writing before you order.

Fitting can be quoted where we have cover; send your postcode and photos of the roof and kerb and we will confirm before quoting.

Replacement roof lantern prices

What replacement roof lanterns cost in common sizes (guide, inc VAT, supply only):

Replacement roof lantern prices
Kerb sizeRoof areaGuide priceConfigure
1000 × 1500 mm1.50 m²£1,295–£1,495£1,079 ex VAT fromConfigure
1000 × 2000 mm2.00 m²£1,495–£1,795£1,246 ex VAT fromConfigure
1500 × 2000 mm3.00 m²£1,995–£2,295£1,662 ex VAT fromConfigure
1500 × 2500 mm3.75 m²£2,295–£2,695£1,912 ex VAT fromConfigure
2000 × 3000 mm6.00 m²£3,195–£3,695£2,662 ex VAT fromConfigure
2000 × 4000 mm8.00 m²£4,095–£4,795£3,412 ex VAT fromConfigure

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 in Hertfordshire

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.

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 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

Replacement roof lanterns in Hertfordshire: questions

Can I replace polycarbonate panels with glass?

Usually not in the old frame: glass is much heavier than polycarbonate and the frame was not designed for it. Replacing the whole lantern is the safer route.

How long does replacement take on site?

For a like-for-like swap on a sound kerb, often a day. Kerb or roof repairs add time.

Will a new lantern be warmer?

A modern double glazed lantern with a thermally broken frame loses far less heat than polycarbonate.

Do I need planning permission for a roof lantern in Hertfordshire?

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.

Replacement roof lanterns by town in Hertfordshire

Fixed price in writing

Know the price before you order.

Configure your lantern for a guide price, then get a fixed written quote with delivery to your postcode.

Price my lanternCall 0800 088 6248
CallPrice my lantern