Rooflight upstands & kerbs in Cowes: what is involved?
For Cowes 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.
Period cottages and conservation-area streets are common in the South East, so slim conservation rooflights are often the right choice. Rooflight upstands & kerbs suit new flat-roof openings and rooflight replacements.
Cowes is around 7 km from Newport, Isle of Wight, and we survey and fit throughout that part of the Isle of Wight, including the PO31 district.
Options we can specify in Cowes
- Internal plaster-box linings
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Timber upstands with insulation
- Raised upstands for deep green or ballasted roofs
- Proprietary insulated kerbs
- Membrane dressed up and sealed
- Built square to the rooflight size
What to check first
- Upstand size must match the unit within a tight tolerance
- Insulation continuity around the upstand affects condensation
Planning, building control and Cowes
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
See our building regulations guide for U-values, glazing limits and self-certification.
Rooflight upstands & kerbs prices in Cowes
Prices below are shown including and excluding VAT. In Cowes, as elsewhere, making good inside and access equipment are the main variables.
| 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
- 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.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Related work in Cowes
Common questions
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.
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.
How do I book a survey in Cowes?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do you offer rooflight upstands & kerbs in Cowes?
Yes. We carry out rooflight upstands & kerbs in Cowes and across the Isle of Wight. Send your postcode and we will offer a survey date when we reply.
