How we approach ridge & pitched glass roofs in Llantwit Major
We handle ridge & pitched glass roofs across South Glamorgan, including Llantwit Major. In short: dual-pitch glazed roofs for side returns, links and long extensions. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Slate roofs, stone cottages and terraced valleys are typical across Wales, and slim rooflights that sit low in the slates suit them best. In Llantwit Major, as anywhere, ridge & pitched glass roofs are the usual choice for side returns, links and long extensions.
We work across South Glamorgan, including Llantwit Major, and in neighbouring towns such as Cowbridge and Bridgend. Access, parking and how the glass reaches the roof are all checked at the survey.
What you can choose
- Opening vents and electric actuators
- Solar-control, self-cleaning or tinted glass
- Aluminium systems in standard and RAL colours
- Integrated gutters and box gutters
- Fixed or retractable shading
- Forms the roof as well as the window
- Slim aluminium glazing bars
What to check first
- Junctions with existing walls need lead or flashing detail
- Overheating is a real risk on south-facing glass roofs
Do you need permission in Llantwit Major?
Planning rules in Wales are tighter than in England for rooflights: Class C rights do not apply in conservation areas, National Parks or AONBs, so a rooflight there needs planning permission. A side-facing rooflight within 10.5 m of the boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
In Wales the limiting values are 2.2 W/m²K for a rooflight and 1.4 W/m²K (or WER Band B) for a roof window in an existing house. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
Read the planning permission guide before you commit to a design.
Guide prices for Llantwit Major
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Long run with vents and solar glass | £9,595 – £15,595 | £7,995 – £12,995 |
| Typical side return (about 2 × 5 m) Typical | £5,995 – £9,595 | £4,995 – £7,995 |
| Short ridge rooflight | £4,795 – £5,995 | £3,995 – £4,995 |
From enquiry to finished job
- Tell us what you have. Send the CF61 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Llantwit Major, measures and checks structure and access.
- 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.
Neighbouring towns
Other services in Llantwit Major
Ridge & pitched glass roofs in Llantwit Major: questions
Can it be partly solid?
Yes — part-glazed, part-insulated roofs balance light and heat.
Is a glass roof too hot for a kitchen?
Without care, it can be. Solar-control glass, an opening vent at the top and a blind make a south-facing glass roof comfortable.
Do I need a party wall agreement?
If the work affects a party wall or boundary, the Party Wall etc. Act 1996 may apply in England and Wales. We flag this at survey so you can serve notice in time.
Will I need planning permission in Llantwit Major?
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites.
Can you work alongside my builder in Llantwit Major?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
