What do rooflight upstands & kerbs in Hereford involve?
Thinking about rooflight upstands & kerbs in Hereford? 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.
Many Midlands semis have had a single-storey rear extension added, and a larger flat rooflight or lantern is often the change that makes it feel finished. Rooflight upstands & kerbs suit new flat-roof openings and rooflight replacements.
We cover all of Hereford and the HR1 district, and nearby Ross-on-Wye and Leominster.
Specification options
- Upstand repairs and rebuilds
- Proprietary insulated kerbs
- Timber upstands with insulation
- Raised upstands for deep green or ballasted roofs
- Internal plaster-box linings
- Membrane dressed up and sealed
- Built square to the rooflight size
What to check first
- Membrane compatibility with the rooflight's sealants
- Upstand size must match the unit within a tight tolerance
Consents for rooflight upstands & kerbs in Hereford
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Read the planning permission guide before you commit to a design.
Guide prices for Hereford
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 HR1 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Hereford, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
More we do in Hereford
Rooflight upstands & kerbs in Hereford: questions
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.
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
Will I need planning permission in Hereford?
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge.
Do you offer rooflight upstands & kerbs in Hereford?
Yes. We carry out rooflight upstands & kerbs in Hereford and across Herefordshire. Send your postcode and we will offer a survey date when we reply.
