What does skylight replacement in Farnham involve?
Thinking about skylight replacement in Farnham? 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.
Period cottages and conservation-area streets are common in the South East, so slim conservation rooflights are often the right choice. Typical uses for skylight replacement include older extensions due a modern rooflight.
Farnham sits about 5 km from Aldershot and 8 km from Fleet, and we cover the whole GU9 postcode district and the roads in between.
What you can choose
- Like-for-like size replacement
- Upstand rebuild and insulation
- Dome to flat glass upgrade
- Misted glass unit replacement only
- Roof window replacement in pitched roofs
- Usually done in a day
- Clearer view and more light
Things we check at survey
- Enlarging the opening changes the structure and may need approval
- Old glass and domes are disposed of responsibly
Planning, building control and Farnham
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.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. 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 Farnham
Guide prices for skylight replacement in Farnham 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 |
What happens next
- Tell us what you have. Send the GU9 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.
Nearby towns
Related work in Farnham
Skylight replacement in Farnham: questions
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
Do I need building regulations approval to replace a rooflight?
Replacements in existing homes generally need to meet current thermal standards and may need notification or approval. We advise on the route for your job.
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
Do you offer skylight replacement in Farnham?
Yes. We carry out skylight replacement in Farnham and across Surrey. Send your postcode and we will offer a survey date when we reply.
Is the survey in Farnham free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
