What do rooflight upstands & kerbs in Castlereagh involve?
Thinking about rooflight upstands & kerbs in Castlereagh? 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.
Bungalows are widespread in Northern Ireland, and sun tunnels or roof windows are an easy way to brighten internal hallways. In Castlereagh, as anywhere, rooflight upstands & kerbs are the usual choice for new flat-roof openings and rooflight replacements.
We work across County Down, including Castlereagh, and in neighbouring towns such as Belfast and Newtownabbey. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Castlereagh
- Upstand repairs and rebuilds
- Internal plaster-box linings
- Proprietary insulated kerbs
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Raised upstands for deep green or ballasted roofs
- Correct height above the finished roof
- Membrane dressed up and sealed
Before you order: points to check
- Insulation continuity around the upstand affects condensation
- Membrane compatibility with the rooflight's sealants
Consents for rooflight upstands & kerbs in Castlereagh
Northern Ireland's householder permitted development allows rooflights within limits — no more than 15 cm projection on road-facing slopes and a 0.5 m margin from ridge, eaves and party walls. Listed buildings also need listed building consent from the council.
Northern Ireland's energy rules assess rooflight U-values in the vertical position — unlike England and Wales — and expect 1.6 W/m²K or Band C for replacements. New dwellings must average 1.40 W/m²K across windows, roof windows and rooflights.
Our planning guide covers each nation in more detail.
Rooflight upstands & kerbs prices in Castlereagh
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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
- Tell us what you have. Send the BT5 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Castlereagh, measures and checks structure and access.
- 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.
Nearby towns
Other services in Castlereagh
Questions about rooflight upstands & kerbs in Castlereagh
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.
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
Does every rooflight need an upstand?
Flat and dome rooflights do. Pitched roof windows use flashing kits instead.
Is the survey in Castlereagh free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Can you work alongside my builder in Castlereagh?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
