Skylight replacement in Falmouth: what is involved?
For Falmouth homes and buildings we offer skylight replacement: replacing tired domes and failed glass with a modern rooflight. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Many South West towns mix Georgian and Victorian terraces with modern estates, so the right product differs street by street. Typical uses for skylight replacement include older extensions due a modern rooflight.
Falmouth is around 12 km from Truro, and we survey and fit throughout that part of Cornwall, including the TR11 district.
Options we can specify in Falmouth
- Dome to flat glass upgrade
- Fixed to electric opening
- Misted glass unit replacement only
- Roof window replacement in pitched roofs
- Like-for-like size replacement
- Clearer view and more light
- Usually done in a day
Things we check at survey
- Upstand and roof condition decide the scope
- A replacement is a chance to meet current thermal standards
Planning, building control and Falmouth
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. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Falmouth
Prices below are shown including and excluding VAT. In Falmouth, 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Falmouth address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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.
Nearby towns
Related work in Falmouth
Questions about skylight replacement in Falmouth
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Do you offer skylight replacement in Falmouth?
Yes. We carry out skylight replacement in Falmouth and across Cornwall. Send your postcode and we will offer a survey date when we reply.
Can you work alongside my builder in Falmouth?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
