How we approach glass links & glass box roofs in Penarth
Our glass links & glass box roofs service in Penarth covers frameless glass links joining old and new buildings. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Welsh planning rules exclude rooflights from permitted development in conservation areas and National Parks, so we check the designation before quoting. In Penarth, as anywhere, glass links & glass box roofs are the usual choice for listed and period buildings where the old wall should stay visible.
Neighbouring towns include Dinas Powys (3 km) and Cardiff (5 km). We offer a survey date when we reply to your enquiry.
Options we can specify in Penarth
- Frameless or slim-framed glass
- Structural glass beams and fins
- Frameless sliding or pivot doors
- Heated glass on some systems
- Concealed gutters and drainage
- Keeps period walls on show
- Designed around the existing building
Things we check at survey
- Thermal performance of large glass areas must be calculated
- Abutments with old masonry need careful weathering
Planning and building rules for Penarth
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
Approved Document L in Wales (2022 edition) sets 2.2 W/m²K for rooflights, measured horizontally, and 1.4 W/m²K or Band B for roof windows in existing homes. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Penarth
Guide prices for glass links & glass box roofs in Penarth 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
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Penarth address.
- Measure and check. A surveyor visits Penarth, measures and checks structure and access.
- 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.
Glass links & glass box roofs near Penarth
Related work in Penarth
Glass links & glass box roofs in Penarth: 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.
Will I need planning permission in Penarth?
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed.
Do you fit glass links & glass box roofs in Penarth?
Yes. We survey and fit glass links & glass box roofs in Penarth and across South Glamorgan. Send your postcode and we will offer a survey date when we reply.
