How we approach rooflight upstands & kerbs in Johnstone
Rooflight upstands & kerbs in Johnstone means insulated kerbs built and waterproofed to suit your rooflight. We cover the PA5 district and the rest of Renfrewshire and Inverclyde, with a survey before any price is fixed.
Many Scottish homes have dormers and attic rooms where an extra roof window adds light without a full dormer. Typical uses for rooflight upstands & kerbs include roofs where the old kerb is low, cold or leaking.
We work across Renfrewshire and Inverclyde, including Johnstone, and in neighbouring towns such as Paisley and Erskine. 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
- Upstand repairs and rebuilds
- Raised upstands for deep green or ballasted roofs
- Built square to the rooflight size
- Insulated to avoid a cold bridge
Things we check at survey
- Insulation continuity around the upstand affects condensation
- Minimum upstand height is set by the rooflight manufacturer — commonly 150 mm above the finished roof
Do you need permission in Johnstone?
Scottish householder permitted development (Class 2B, other external alterations) can cover a rooflight that projects no more than 1 metre from the roof, but the right does not apply in conservation areas. Flats and tenements are outside householder permitted development, so check with the planning authority first.
Under the Scottish building standards, replacement rooflights should average 1.6 W/m²K or better, and no individual unit should exceed 3.3 W/m²K. Forming a new opening normally involves structural work, so check with the local authority verifier whether a building warrant is needed.
Read the planning permission guide before you commit to a design.
Rooflight upstands & kerbs prices in Johnstone
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 PA5 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Johnstone, 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.
Neighbouring towns
Related work in Johnstone
Questions about rooflight upstands & kerbs in Johnstone
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.
What roof coverings do you work with?
Single-ply, EPDM, felt, GRP and liquid-applied systems — or we coordinate with your roofer.
Is the survey in Johnstone free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do I need to be at home for the survey in Johnstone?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
