How we approach roof lanterns in Crawley
Roof lanterns in Crawley means hipped glass lanterns that lift the ceiling of orangeries and extensions. We cover the RH11 district and the rest of West Sussex, with a survey before any price is fixed.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. In Crawley, as anywhere, roof lanterns are the usual choice for orangeries, kitchen-diners and single-storey extensions.
Crawley is the main town we list in West Sussex; we also cover nearby Horley and Horsham.
Choices for your Crawley project
- Rectangular, square or bespoke sizes
- Solar-control or self-cleaning glass
- Opening vents with electric control
- LED lighting in the plaster box
- Aluminium or uPVC systems
- Slim aluminium bars, more glass
- Can include opening vents
Before you order: points to check
- Larger lanterns may need a steel or timber ring beam
- Plaster-box depth affects how the lantern looks from below
Planning and building rules for Crawley
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Our planning guide covers each nation in more detail.
What do roof lanterns cost in Crawley?
Prices below are shown including and excluding VAT. In Crawley, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or bespoke aluminium lantern | £5,995 – £10,795 | £4,995 – £8,995 |
| Mid-size aluminium lantern (2 × 3 m) Typical | £3,955 – £5,995 | £3,295 – £4,995 |
| Small lantern (1 × 2 m) | £2,995 – £3,955 | £2,495 – £3,295 |
What happens next
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Crawley, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Roof lanterns near Crawley
Other services in Crawley
Common questions
Roof lantern or flat rooflight?
A lantern adds height and sky from all sides; a flat rooflight is lower-profile and cleaner from outside. Our guide compares them in detail.
Do roof lanterns get hot?
They can in summer if clear glass is used on a south-facing roof. Solar-control glass and an opening vent make a big difference.
Aluminium or uPVC?
Aluminium gives slimmer bars and a longer life; uPVC costs less. We fit both.
Do you fit roof lanterns in Crawley?
Yes. We survey and fit roof lanterns in Crawley and across West Sussex. Send your postcode and we will offer a survey date when we reply.
Is the survey in Crawley free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
