Rooflight upstands & kerbs in Caterham: what is involved?
We handle rooflight upstands & kerbs across Surrey, including Caterham. In short: insulated kerbs built and waterproofed to suit your rooflight. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Rooflight upstands & kerbs suit roofs where the old kerb is low, cold or leaking.
Caterham is around 34 km from Woking, and we survey and fit throughout that part of Surrey, including the CR3 district.
Choices for your Caterham project
- Timber upstands with insulation
- Upstand repairs and rebuilds
- Raised upstands for deep green or ballasted roofs
- Proprietary insulated kerbs
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Built square to the rooflight size
- Membrane dressed up and sealed
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 Caterham
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. 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.
Our planning guide covers each nation in more detail.
Guide prices for Caterham
Prices below are shown including and excluding VAT. In Caterham, 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 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Caterham address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Related work in Caterham
Rooflight upstands & kerbs in Caterham: questions
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 Caterham free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Will I need planning permission in Caterham?
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof.
