How we approach conservation rooflights in Stevenage
We handle conservation rooflights across Hertfordshire, including Stevenage. In short: slim, low-profile steel-look rooflights for period and listed roofs. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. Conservation rooflights suit period, listed and conservation-area roofs.
Neighbouring towns include Hitchin (8 km) and Letchworth Garden City (9 km). We offer a survey date when we reply to your enquiry.
Specification options
- Toughened or laminated double glazing
- Blinds
- Flashings for slate or plain tile
- Steel or aluminium frames
- Manual or electric opening
- Optional central glazing bar
- Traditional slim profile, sits low in the roof
What to check first
- Lead or matching flashings may be required
- Conservation officers may specify size and position
Planning and building rules for Stevenage
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. 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 conservation rooflights cost in Stevenage?
Guide prices for conservation rooflights in Stevenage 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 electric conservation rooflight | £2,755 – £4,195 | £2,295 – £3,495 |
| Standard conservation rooflight Typical | £2,035 – £2,755 | £1,695 – £2,295 |
| Small conservation rooflight | £1,795 – £2,155 | £1,495 – £1,795 |
How the job runs
- Tell us what you have. Send the SG1 postcode, a rough size and a couple of photos.
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Related work in Stevenage
Common questions
Do they suit slate roofs?
Yes — flashings are made for slates and for plain tiles.
Can you copy an original rooflight?
Some makers produce bespoke sizes to match an existing opening. We can survey and quote.
Can they open?
Yes, most are top-hung or side-hung for ventilation and cleaning, with manual or electric operation.
Will I need planning permission in Stevenage?
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.
Do you fit conservation rooflights in Stevenage?
Yes. We survey and fit conservation rooflights in Stevenage and across Hertfordshire. Send your postcode and we will offer a survey date when we reply.
