How we approach dome rooflights in Ystradgynlais
Our dome rooflights service in Ystradgynlais 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.
Welsh planning rules exclude rooflights from permitted development in conservation areas and National Parks, so we check the designation before quoting. In Ystradgynlais, as anywhere, dome rooflights are the usual choice for schools, flats and commercial flat roofs.
We work across Powys, including Ystradgynlais, and in neighbouring towns such as Pontardawe and Neath. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Ystradgynlais
- Twin, triple or quad skin
- Polycarbonate or acrylic
- Fixed or hinged with vent
- Insulated PVC or GRP upstands
- Fall-through protection mesh
- Quick replacement on existing upstands
- Suits schools, flats and commercial roofs
What to check first
- Fire classification matters on some roofs
- Upstand condition decides whether you replace dome only or the whole unit
Building control and safety duties in Ystradgynlais
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 non-domestic buildings in Wales, Approved Document L sets limiting U-values for rooflights and roof ventilators; we supply the manufacturer's data for the building control submission. Fire classification of rooflight materials near boundaries is checked at specification.
See our building regulations guide for U-values, glazing limits and self-certification.
What do dome rooflights cost in Ystradgynlais?
Prices below are shown including and excluding VAT. In Ystradgynlais, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Ystradgynlais address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
More we do in Ystradgynlais
Common questions
Can you replace just the dome?
Yes, if the upstand is sound and the size matches. Otherwise we replace both.
Should I replace a dome or switch to glass?
A dome is cheaper and quick; glass gives a clear view and better performance. On a tight budget, or a commercial roof with many units, domes remain sensible.
Are domes safe to walk on?
No. Treat any rooflight as fragile unless it is specifically certified non-fragile, and never stand on it.
Do I need to be at home for the survey in Ystradgynlais?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Ystradgynlais?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
