How we approach skylight replacement in Hounslow
Thinking about skylight replacement in Hounslow? The short answer: replacing tired domes and failed glass with a modern rooflight. The longer answer depends on your roof, which is why we survey before we price.
Many London roofs are reached only through the house or over neighbouring property, so lifting heavy glass is planned at survey rather than on the day. In Hounslow, as anywhere, skylight replacement is the usual choice for yellowed domes, misted glass and leaking roof windows.
We work across Greater London, including Hounslow, and in neighbouring towns such as Isleworth and Twickenham. Access, parking and how the glass reaches the roof are all checked at the survey.
What you can choose
- Upstand rebuild and insulation
- Like-for-like size replacement
- Misted glass unit replacement only
- Dome to flat glass upgrade
- Fixed to electric opening
- Option to add opening and rain sensor
- Clearer view and more light
What to check first
- A replacement is a chance to meet current thermal standards
- Old glass and domes are disposed of responsibly
Planning and building rules for Hounslow
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.
Read the planning permission guide before you commit to a design.
Skylight replacement prices in Hounslow
Prices below are shown including and excluding VAT. In Hounslow, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
The process, step by step
- Tell us what you have. Send the TW3 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 Hounslow
More we do in Hounslow
Questions about skylight replacement in Hounslow
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
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.
Do you offer skylight replacement in Hounslow?
Yes. We carry out skylight replacement in Hounslow and across Greater London. Send your postcode and we will offer a survey date when we reply.
Is the survey in Hounslow free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
