Skylight replacement for Chelsea: the essentials
Skylight replacement in Chelsea means replacing tired domes and failed glass with a modern rooflight. We cover the SW10 district and the rest of Greater London, with a survey before any price is fixed.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. In Chelsea, as anywhere, skylight replacement is the usual choice for older extensions due a modern rooflight.
We work across Greater London, including Chelsea, and in neighbouring towns such as Battersea and Wandsworth. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Fixed to electric opening
- Misted glass unit replacement only
- Dome to flat glass upgrade
- Upstand rebuild and insulation
- Roof window replacement in pitched roofs
- Clearer view and more light
- Often reuses the existing opening
What to check first
- Enlarging the opening changes the structure and may need approval
- Upstand and roof condition decide the scope
Consents for skylight replacement in Chelsea
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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.
Skylight replacement prices in Chelsea
These are typical supply-and-fit ranges. For an address in Chelsea, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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 |
From enquiry to finished job
- Tell us what you have. Send the SW10 postcode, a rough size and a couple of photos.
- 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 Chelsea
Related work in Chelsea
Skylight replacement in Chelsea: questions
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Do you offer skylight replacement in Chelsea?
Yes. We carry out skylight replacement in Chelsea and across Greater London. Send your postcode and we will offer a survey date when we reply.
Is the survey in Chelsea free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
