How we approach rooflight upstands & kerbs in Hampton
We handle rooflight upstands & kerbs across Greater London, including Hampton. 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.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Think of rooflight upstands & kerbs for new flat-roof openings and rooflight replacements.
Neighbouring towns include Sunbury-on-Thames (4 km) and Walton-on-Thames (4 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Proprietary insulated kerbs
- Internal plaster-box linings
- Timber upstands with insulation
- Raised upstands for deep green or ballasted roofs
- Upstand repairs and rebuilds
- Insulated to avoid a cold bridge
- Matched to your roof covering
Before you order: points to check
- Minimum upstand height is set by the rooflight manufacturer — commonly 150 mm above the finished roof
- Membrane compatibility with the rooflight's sealants
Planning, building control and Hampton
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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 Hampton?
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 |
From enquiry to finished job
- Tell us what you have. Send the TW12 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Hampton, measures and checks structure and access.
- 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.
Rooflight upstands & kerbs near Hampton
Related work in Hampton
Questions about rooflight upstands & kerbs in Hampton
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.
How do I book a survey in Hampton?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do I need to be at home for the survey in Hampton?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
