How we approach rooflight upstands & kerbs in Doncaster
Rooflight upstands & kerbs in Doncaster means insulated kerbs built and waterproofed to suit your rooflight. We cover the DN1 district and the rest of South Yorkshire, with a survey before any price is fixed.
Conservation areas and stone villages across Yorkshire often call for conservation rooflights in slate or stone-slate roofs. Rooflight upstands & kerbs suit new flat-roof openings and rooflight replacements.
Neighbouring towns include Bentley (2 km) and Rotherham (18 km). We offer a survey date when we reply to your enquiry.
Specification options
- Proprietary insulated kerbs
- Timber upstands with insulation
- Internal plaster-box linings
- Upstand repairs and rebuilds
- Raised upstands for deep green or ballasted roofs
- Correct height above the finished roof
- Fixings and falls agreed with the rooflight maker
Before you order: points to check
- Insulation continuity around the upstand affects condensation
- Minimum upstand height is set by the rooflight manufacturer — commonly 150 mm above the finished roof
Planning and building rules for Doncaster
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. 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.
What do rooflight upstands & kerbs cost in Doncaster?
Guide prices for rooflight upstands & kerbs in Doncaster are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Doncaster address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- 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.
Nearby towns
Related work in Doncaster
Questions about rooflight upstands & kerbs in Doncaster
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.
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
How do I book a survey in Doncaster?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Can you work alongside my builder in Doncaster?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
