Skylight replacement for Crawley: the essentials
Skylight replacement in Crawley means replacing tired domes and failed glass with a modern rooflight. We cover the RH11 district and the rest of West Sussex, with a survey before any price is fixed.
Many South East homes have been extended more than once, and an old dome over an earlier extension is often due for replacement. In Crawley, as anywhere, skylight replacement is the usual choice for yellowed domes, misted glass and leaking roof windows.
Crawley is the main town we list in West Sussex; we also cover nearby Horley and Horsham.
Choices for your Crawley project
- Misted glass unit replacement only
- Fixed to electric opening
- Like-for-like size replacement
- Roof window replacement in pitched roofs
- Dome to flat glass upgrade
- Often reuses the existing opening
- Option to add opening and rain sensor
Things we check at survey
- Enlarging the opening changes the structure and may need approval
- A replacement is a chance to meet current thermal standards
Planning, building control and Crawley
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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.
Read the planning permission guide before you commit to a design.
What does skylight replacement cost in Crawley?
Guide prices for skylight replacement in Crawley are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Replacement with upstand rebuild and opening unit | £2,995 – £4,795 | £2,495 – £3,995 |
| Dome to flat glass upgrade Typical | £1,915 – £2,995 | £1,595 – £2,495 |
| Like-for-like glass rooflight | £1,555 – £2,155 | £1,295 – £1,795 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Crawley address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Skylight replacement near Crawley
More we do in Crawley
Common questions
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Can you replace only the misted glass?
Sometimes, if the frame is sound and the maker supplies replacement units. Often a complete new rooflight costs little more and performs better.
How do I book a survey in Crawley?
Send your postcode and, if you can, a photo of the roof and the room. We 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.
