What do rooflight upstands & kerbs in Walton-on-Thames involve?
Our rooflight upstands & kerbs service in Walton-on-Thames covers insulated kerbs built and waterproofed to suit your rooflight. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
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 roofs where the old kerb is low, cold or leaking.
From Walton-on-Thames to Sunbury-on-Thames, Esher and Hampton, the same survey-first process applies: measure, specify, fix the price, then fit.
What you can choose
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Internal plaster-box linings
- Upstand repairs and rebuilds
- Proprietary insulated kerbs
- Raised upstands for deep green or ballasted roofs
- Insulated to avoid a cold bridge
- Membrane dressed up and sealed
What to check first
- Insulation continuity around the upstand affects condensation
- Membrane compatibility with the rooflight's sealants
Do you need permission in Walton-on-Thames?
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.
Rooflight upstands & kerbs prices in Walton-on-Thames
Guide prices for rooflight upstands & kerbs in Walton-on-Thames 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
- Send the details. Postcode, rough size and a photo of the roof and room.
- 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.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
Other services in Walton-on-Thames
Questions about rooflight upstands & kerbs in Walton-on-Thames
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.
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.
Do you offer rooflight upstands & kerbs in Walton-on-Thames?
Yes. We carry out rooflight upstands & kerbs in Walton-on-Thames and across Surrey. Send your postcode and we will offer a survey date when we reply.
Is the survey in Walton-on-Thames free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
