Rooflight upstands & kerbs for Bishop's Stortford: the essentials
For Bishop's Stortford 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.
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.
Jobs in Bishop's Stortford are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
What you can choose
- Upstand repairs and rebuilds
- Raised upstands for deep green or ballasted roofs
- Proprietary insulated kerbs
- Timber upstands with insulation
- Internal plaster-box linings
- Correct height above the finished roof
- Insulated to avoid a cold bridge
What to check first
- Membrane compatibility with the rooflight's sealants
- Minimum upstand height is set by the rooflight manufacturer — commonly 150 mm above the finished roof
Planning and building rules for Bishop's Stortford
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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.
What do rooflight upstands & kerbs cost in Bishop's Stortford?
Prices below are shown including and excluding VAT. In Bishop's Stortford, 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Bishop's Stortford address.
- 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Neighbouring towns
Other services in Bishop's Stortford
Rooflight upstands & kerbs in Bishop's Stortford: questions
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 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.
Do I need to be at home for the survey in Bishop's Stortford?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Bishop's Stortford?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
