Rooflight upstands & kerbs for Aberdare: the essentials
We handle rooflight upstands & kerbs across Mid Glamorgan, including Aberdare. In short: insulated kerbs built and waterproofed to suit your rooflight. 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 Aberdare, as anywhere, rooflight upstands & kerbs are the usual choice for new flat-roof openings and rooflight replacements.
Aberdare sits about 6 km from Rhondda and 6 km from Merthyr Tydfil, and we cover the whole CF44 postcode district and the roads in between.
Specification options
- Internal plaster-box linings
- Raised upstands for deep green or ballasted roofs
- Timber upstands with insulation
- Upstand repairs and rebuilds
- Proprietary insulated kerbs
- Correct height above the finished roof
- Membrane dressed up and sealed
What to check first
- Minimum upstand height is set by the rooflight manufacturer — commonly 150 mm above the finished roof
- Upstand size must match the unit within a tight tolerance
Do you need permission in Aberdare?
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. 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.
Our planning guide covers each nation in more detail.
Rooflight upstands & kerbs prices in Aberdare
Guide prices for rooflight upstands & kerbs in Aberdare are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or raised upstand | £715 – £1,195 | £595 – £995 |
| Standard insulated upstand Typical | £475 – £715 | £395 – £595 |
| Small upstand on new roof | £355 – £475 | £295 – £395 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Aberdare 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Related work in Aberdare
Rooflight upstands & kerbs in Aberdare: questions
Does every rooflight need an upstand?
Flat and dome rooflights do. Pitched roof windows use flashing kits instead.
Can I build the upstand myself?
Your builder can, to our drawing. We check it before the rooflight is fitted, because the unit must sit square and level.
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
Will I need planning permission in Aberdare?
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.
Is the survey in Aberdare free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
