What do rooflight upstands & kerbs in Maidstone involve?
Rooflight upstands & kerbs in Maidstone means insulated kerbs built and waterproofed to suit your rooflight. We cover the ME14 district and the rest of Kent, with a survey before any price is fixed.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. Typical uses for rooflight upstands & kerbs include new flat-roof openings and rooflight replacements.
Maidstone is the main town we list in Kent; we also cover nearby Chatham and Rochester.
Options we can specify in Maidstone
- Proprietary insulated kerbs
- Upstand repairs and rebuilds
- Internal plaster-box linings
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Raised upstands for deep green or ballasted roofs
- Matched to your roof covering
- Insulated to avoid a cold bridge
Things we check at survey
- Insulation continuity around the upstand affects condensation
- Membrane compatibility with the rooflight's sealants
Planning and building rules for Maidstone
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 Maidstone?
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
- Tell us what you have. Send the ME14 postcode, a rough size and a couple of photos.
- 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.
Rooflight upstands & kerbs near Maidstone
Related work in Maidstone
Common questions
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
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.
Can you work alongside my builder in Maidstone?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do I need to be at home for the survey in Maidstone?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
