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England · Flat rooflights

Flat rooflights in Derbyshire

We supply flat rooflights across Derbyshire, from Derby to the smaller towns, priced to your kerb size and delivered to your site.

AreaDerbyshire
NationEngland
Towns listed12
Guide price from£595
Configure and priceCall 0800 088 6248

Get a price in Derbyshire

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Choosing flat rooflights in Derbyshire

A single near-flat pane on an upstand: minimal, low and discreet.

Across Derbyshire, the shortest day brings around 7h 33m of daylight and the midsummer sun reaches about 60.4° at noon. A lantern collects light from the bright overhead sky all year, and the right glass keeps the long summer days comfortable.

  • Usually cheaper than a lantern
  • Fixed or electric opening versions
  • Sized to your upstand
  • Very low profile from outside

Delivery and fitting in Derbyshire

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.

Flat rooflight prices

Guide prices for common flat rooflight sizes, including VAT, supply only:

Flat rooflight prices
Kerb sizeRoof areaGuide priceConfigure
1000 × 1000 mm1.00 m²£595–£695£496 ex VAT fromConfigure
1200 × 1200 mm1.44 m²£695–£845£579 ex VAT fromConfigure
1000 × 1500 mm1.50 m²£695–£845£579 ex VAT fromConfigure
1000 × 2000 mm2.00 m²£845–£995£704 ex VAT fromConfigure
1500 × 1500 mm2.25 m²£895–£1,095£746 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 Derbyshire

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 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

Flat rooflights in Derbyshire: questions

Can I walk on a flat rooflight?

Only if it is a walk-on rooflight designed for foot traffic. Standard rooflights are not designed to be walked on.

Do flat rooflights leak?

They should not, provided they are installed on a properly flashed upstand with the right fall and the seals are maintained.

Are flat rooflights cheaper than lanterns?

Usually, size for size. They use one glass unit and a simple frame.

Who checks building regulations for a lantern in Derbyshire?

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.

Flat rooflights by town in Derbyshire

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.

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