Rooflight upstands & kerbs in Lewisham: what is involved?
For Lewisham 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.
Victorian and Edwardian terraces with narrow side returns are typical of much of London, and a glass roof or long flat rooflight is the usual way to keep the back rooms bright once the return is built over. In Lewisham, as anywhere, rooflight upstands & kerbs are the usual choice for roofs where the old kerb is low, cold or leaking.
We work across Greater London, including Lewisham, and in neighbouring towns such as Catford and Peckham. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Lewisham
- Proprietary insulated kerbs
- Raised upstands for deep green or ballasted roofs
- Internal plaster-box linings
- Timber upstands with insulation
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Matched to your roof covering
- Built square to the rooflight size
Before you order: points to check
- Membrane compatibility with the rooflight's sealants
- Upstand size must match the unit within a tight tolerance
Planning and building rules for Lewisham
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. 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.
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. 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.
Read the planning permission guide before you commit to a design.
Rooflight upstands & kerbs prices in Lewisham
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 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Lewisham address.
- Measure and check. A surveyor visits Lewisham, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Related work in Lewisham
Questions about rooflight upstands & kerbs in Lewisham
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
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.
Does every rooflight need an upstand?
Flat and dome rooflights do. Pitched roof windows use flashing kits instead.
Will I need planning permission in Lewisham?
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.
Do I need to be at home for the survey in Lewisham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
