Rooflight upstands & kerbs for Pontardawe: the essentials
For Pontardawe homes and buildings we offer rooflight upstands & kerbs: insulated kerbs built and waterproofed to suit your rooflight. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Wales sees a lot of wind-driven rain, particularly in the west, so upstand height and flashing laps matter more than anywhere. Typical uses for rooflight upstands & kerbs include roofs where the old kerb is low, cold or leaking.
We work across West Glamorgan, including Pontardawe, and in neighbouring towns such as Neath and Ystradgynlais. Access, parking and how the glass reaches the roof are all checked at the survey.
What you can choose
- Proprietary insulated kerbs
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Internal plaster-box linings
- Timber upstands with insulation
- Raised upstands for deep green or ballasted roofs
- Fixings and falls agreed with the rooflight maker
- Insulated to avoid a cold bridge
Things we check at survey
- Membrane compatibility with the rooflight's sealants
- Upstand size must match the unit within a tight tolerance
Do you need permission in Pontardawe?
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. 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. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
Read the planning permission guide before you commit to a design.
Guide prices for Pontardawe
These are typical supply-and-fit ranges. For an address in Pontardawe, 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 |
|---|---|---|
| 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 |
What happens next
- Send the details. Postcode, rough size and a photo of the roof and room.
- 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.
Rooflight upstands & kerbs near Pontardawe
More we do in Pontardawe
Questions about rooflight upstands & kerbs in Pontardawe
Does every rooflight need an upstand?
Flat and dome rooflights do. Pitched roof windows use flashing kits instead.
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
Can you work alongside my builder in Pontardawe?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do I need to be at home for the survey in Pontardawe?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
