Glass links & glass box roofs for Llangefni: the essentials
Thinking about glass links & glass box roofs in Llangefni? The short answer: frameless glass links joining old and new buildings. The longer answer depends on your roof, which is why we survey before we price.
Slate roofs, stone cottages and terraced valleys are typical across Wales, and slim rooflights that sit low in the slates suit them best. Typical uses for glass links & glass box roofs include joining a period house to a new extension or annexe.
From Llangefni to Bangor, Gwynedd, Caernarfon and Holyhead, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Llangefni
- Frameless sliding or pivot doors
- Heated glass on some systems
- Concealed gutters and drainage
- Frameless or slim-framed glass
- Structural glass beams and fins
- Designed around the existing building
- Structural glass roof with concealed fixings
Things we check at survey
- Structural calculations are part of the design
- Thermal performance of large glass areas must be calculated
Consents for glass links & glass box roofs in Llangefni
Planning rules in Wales are tighter than in England for rooflights: Class C rights do not apply in conservation areas, National Parks or AONBs, so a rooflight there needs planning permission. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
Welsh Building Regulations expect new or replacement rooflights to reach 2.2 W/m²K and roof windows 1.4 W/m²K or a Band B rating. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
Read the planning permission guide before you commit to a design.
Glass links & glass box roofs prices in Llangefni
Prices below are shown including and excluding VAT. In Llangefni, as elsewhere, making good inside and access equipment are the main variables.
| 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 LL77 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Llangefni, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
Other services in Llangefni
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.
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
How do I book a survey in Llangefni?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Can you work alongside my builder in Llangefni?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
