What do rooflight upstands & kerbs in Hertford involve?
Rooflight upstands & kerbs in Hertford means insulated kerbs built and waterproofed to suit your rooflight. We cover the SG13 district and the rest of Hertfordshire, with a survey before any price is fixed.
Period cottages and conservation-area streets are common in the South East, so slim conservation rooflights are often the right choice. In Hertford, as anywhere, rooflight upstands & kerbs are the usual choice for roofs where the old kerb is low, cold or leaking.
We work across Hertfordshire, including Hertford, and in neighbouring towns such as Hoddesdon and Welwyn Garden City. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Internal plaster-box linings
- Raised upstands for deep green or ballasted roofs
- Upstand repairs and rebuilds
- Proprietary insulated kerbs
- Built square to the rooflight size
- Fixings and falls agreed with the rooflight maker
Things we check at survey
- Upstand size must match the unit within a tight tolerance
- Insulation continuity around the upstand affects condensation
Planning, building control and Hertford
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. 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. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Read the planning permission guide before you commit to a design.
Rooflight upstands & kerbs prices in Hertford
Prices below are shown including and excluding VAT. In Hertford, 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 |
From enquiry to finished job
- Tell us what you have. Send the SG13 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Hertford, measures and checks structure and access.
- 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.
Nearby towns
Related work in Hertford
Rooflight upstands & kerbs in Hertford: questions
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.
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
Do you offer rooflight upstands & kerbs in Hertford?
Yes. We carry out rooflight upstands & kerbs in Hertford and across Hertfordshire. Send your postcode and we will offer a survey date when we reply.
Is the survey in Hertford free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
