Frameless structural rooflights in Caerphilly: what is involved?
We handle frameless structural rooflights across Gwent, including Caerphilly. In short: minimal glass rooflights with no visible frame from inside. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Wales sees a lot of wind-driven rain, particularly in the west, so upstand height and flashing laps matter more than anywhere. In Caerphilly, as anywhere, frameless structural rooflights are the usual choice for rooms where you want sky without a visible frame.
We work across Gwent, including Caerphilly, and in neighbouring towns such as Risca and Pontypridd. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Caerphilly
- Butt-jointed runs for long openings
- Heated glass on some ranges
- Low-iron extra-clear glass
- Triple glazing
- Shadow-gap or plastered reveal
- Can run along party walls and side returns
- Double or triple glazed structural units
Before you order: points to check
- Structural glass specification comes from the manufacturer
- Large panes need lifting gear and access planning
Planning, building control and Caerphilly
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
Approved Document L in Wales (2022 edition) sets 2.2 W/m²K for rooflights, measured horizontally, and 1.4 W/m²K or Band B for roof windows in existing homes. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
See our building regulations guide for U-values, glazing limits and self-certification.
Frameless structural rooflights prices in Caerphilly
These are typical supply-and-fit ranges. For an address in Caerphilly, 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 |
|---|---|---|
| Long-format or jointed run | £6,595 – £11,995 | £5,495 – £9,995 |
| Large single pane Typical | £4,795 – £7,195 | £3,995 – £5,995 |
| Standard frameless unit | £3,595 – £4,795 | £2,995 – £3,995 |
What happens next
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Caerphilly, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Frameless structural rooflights near Caerphilly
Other services in Caerphilly
Questions about frameless structural rooflights in Caerphilly
Is frameless glass as strong as a framed rooflight?
Yes — it is structural glass designed for the job. The support is hidden rather than missing.
Will I see the edge of the glass?
From inside, the reveal is finished up to the glass so the edge is hidden. From outside you will see the glass and its edge seal.
Can it open?
Some frameless designs include a sliding or hinged opening element, but most are fixed. Pair with an opening unit if you need ventilation.
Is the survey in Caerphilly free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do I need to be at home for the survey in Caerphilly?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
