How we approach rooflight upstands & kerbs in Barry
Thinking about rooflight upstands & kerbs in Barry? The short answer: insulated kerbs built and waterproofed to suit your rooflight. The longer answer depends on your roof, which is why we survey before we price.
Welsh planning rules exclude rooflights from permitted development in conservation areas and National Parks, so we check the designation before quoting. Typical uses for rooflight upstands & kerbs include roofs where the old kerb is low, cold or leaking.
We work across South Glamorgan, including Barry, and in neighbouring towns such as Dinas Powys and Penarth. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Barry
- Raised upstands for deep green or ballasted roofs
- Proprietary insulated kerbs
- Timber upstands with insulation
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Internal plaster-box linings
- Matched to your roof covering
- Correct height above the finished roof
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
Consents for rooflight upstands & kerbs in Barry
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.
Rooflight upstands & kerbs prices in Barry
Guide prices for rooflight upstands & kerbs in Barry 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 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Barry address.
- Measure and check. A surveyor visits Barry, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Rooflight upstands & kerbs near Barry
More we do in Barry
Common questions
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
How high should a rooflight upstand be?
High enough to meet the rooflight manufacturer's minimum above the finished roof surface — commonly 150 mm. On roofs with deep finishes, such as green roofs, it needs to be taller.
Does every rooflight need an upstand?
Flat and dome rooflights do. Pitched roof windows use flashing kits instead.
Do you offer rooflight upstands & kerbs in Barry?
Yes. We carry out rooflight upstands & kerbs in Barry and across South Glamorgan. Send your postcode and we will offer a survey date when we reply.
Can you work alongside my builder in Barry?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
