What do glass links & glass box roofs in Hertford involve?
For Hertford homes and buildings we offer glass links & glass box roofs: frameless glass links joining old and new buildings. 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. Think of glass links & glass box roofs for listed and period buildings where the old wall should stay visible.
Neighbouring towns include Hoddesdon (6 km) and Welwyn Garden City (9 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Heated glass on some systems
- Concealed gutters and drainage
- Frameless sliding or pivot doors
- Solar-control and low-iron glass
- Frameless or slim-framed glass
- Keeps period walls on show
- Bright circulation space
What to check first
- Abutments with old masonry need careful weathering
- Thermal performance of large glass areas must be calculated
Planning and building rules for 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. 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. 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.
What do glass links & glass box roofs cost in Hertford?
Guide prices for glass links & glass box roofs in Hertford 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 |
|---|---|---|
| Fully frameless link with glass beams | £20,395 – £35,995 | £16,995 – £29,995 |
| Glass roof and glazed sides Typical | £13,195 – £20,395 | £10,995 – £16,995 |
| Glass roof between existing walls | £9,595 – £13,195 | £7,995 – £10,995 |
How the job runs
- 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.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Other services in Hertford
Common questions
How long does a link take?
Design and manufacture are the long part. Fitting is often two to five days.
Can a glass link be warm enough to use all year?
With insulated glass units, solar control and good detailing, yes — though it will always be brighter and more exposed to temperature swings than a solid room.
How is the glass joined to the old wall?
Usually by a slim channel or flashing set into the masonry, sealed and weathered so the old wall can move without cracking the glass seal.
Do I need to be at home for the survey in Hertford?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Is the survey in Hertford free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
