How we approach rooflight upstands & kerbs in Ewell
For Ewell 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.
Larger gardens in much of the South East mean deeper rear extensions, and deeper rooms need light from above rather than only from the doors. Rooflight upstands & kerbs suit roofs where the old kerb is low, cold or leaking.
Neighbouring towns include Epsom (3 km) and Banstead (4 km). We offer a survey date when we reply to your enquiry.
Choices for your Ewell project
- Internal plaster-box linings
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Proprietary insulated kerbs
- Raised upstands for deep green or ballasted roofs
- Upstand repairs and rebuilds
- Insulated to avoid a cold bridge
- Correct height above the finished roof
What to check first
- Membrane compatibility with the rooflight's sealants
- Insulation continuity around the upstand affects condensation
Consents for rooflight upstands & kerbs in Ewell
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. 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. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Ewell
These are typical supply-and-fit ranges. For an address in Ewell, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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 Ewell address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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
More we do in Ewell
Common questions
Does every rooflight need an upstand?
Flat and dome rooflights do. Pitched roof windows use flashing kits instead.
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.
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
Is the survey in Ewell 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 Ewell?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
