Dome rooflights for Falmouth: the essentials
Our dome rooflights service in Falmouth covers polycarbonate and acrylic domes for flat roofs, new or replacement. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Holiday lets and second homes across the South West often want roof windows with blinds and remote opening for when the house is empty. Think of dome rooflights for older flat roofs with yellowed or leaking domes.
Neighbouring towns include Truro (12 km) and Redruth (14 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Fixed or hinged with vent
- Fall-through protection mesh
- Polycarbonate or acrylic
- Twin, triple or quad skin
- Insulated PVC or GRP upstands
- Quick replacement on existing upstands
- Light, impact-resistant domes
Before you order: points to check
- Plastic domes have a lower acoustic and thermal performance than glass
- Old domes may be fragile — treat as fragile until checked
Rules and responsibilities in Falmouth
For non-domestic buildings, planning depends on the building and its location; building regulations cover thermal performance and the fire classification of rooflights near boundaries. Product data for building control is supplied with every quote.
For buildings other than dwellings, Approved Document L Volume 2 sets limiting U-values of 2.2 W/m²K for rooflights and 3.0 W/m²K for roof ventilators, including smoke vents. Fragile-roof safety and access are planned before work starts.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Falmouth
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Dome and new insulated upstand | £955 – £1,675 | £795 – £1,395 |
| Hinged or vented dome Typical | £715 – £1,195 | £595 – £995 |
| Replacement fixed dome | £475 – £835 | £395 – £695 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Falmouth, measures and checks structure and access.
- 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.
Neighbouring towns
More we do in Falmouth
Common questions
Do domes leak?
Leaks are usually at the upstand seal or the membrane. Replacing the dome and resealing often fixes it.
Can domes open?
Hinged and vented domes are available, manual or electric.
Are domes safe to walk on?
No. Treat any rooflight as fragile unless it is specifically certified non-fragile, and never stand on it.
How do I book a survey in Falmouth?
Send your postcode and, if you can, a photo of the roof and the room. We 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.
