What do rooflight upstands & kerbs in Carlisle involve?
Rooflight upstands & kerbs in Carlisle means insulated kerbs built and waterproofed to suit your rooflight. We cover the CA1 district and the rest of Cumbria, with a survey before any price is fixed.
Rear kitchen extensions on North West semis often have small domes from decades ago that leak or have yellowed. Rooflight upstands & kerbs suit roofs where the old kerb is low, cold or leaking.
We cover all of Carlisle and the CA1 district, and nearby Penrith and Keswick.
Options we can specify in Carlisle
- Raised upstands for deep green or ballasted roofs
- Proprietary insulated kerbs
- Upstand repairs and rebuilds
- Internal plaster-box linings
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Insulated to avoid a cold bridge
- Matched to your roof covering
What to check first
- Insulation continuity around the upstand affects condensation
- Upstand size must match the unit within a tight tolerance
Planning, building control and Carlisle
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.
Read the planning permission guide before you commit to a design.
Guide prices for Carlisle
Prices below are shown including and excluding VAT. In Carlisle, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in Carlisle
Questions about rooflight upstands & kerbs in Carlisle
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.
What roof coverings do you work with?
Single-ply, EPDM, felt, GRP and liquid-applied systems — or we coordinate with your roofer.
Can you work alongside my builder in Carlisle?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do you offer rooflight upstands & kerbs in Carlisle?
Yes. We carry out rooflight upstands & kerbs in Carlisle and across Cumbria. Send your postcode and we will offer a survey date when we reply.
