How we approach glass links & glass box roofs in Merthyr Tydfil
Thinking about glass links & glass box roofs in Merthyr Tydfil? 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. Glass links & glass box roofs suit listed and period buildings where the old wall should stay visible.
We work across Mid Glamorgan, including Merthyr Tydfil, and in neighbouring towns such as Aberdare and Rhondda. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Merthyr Tydfil
- Concealed gutters and drainage
- Heated glass on some systems
- Solar-control and low-iron glass
- Frameless or slim-framed glass
- Frameless sliding or pivot doors
- Can include frameless doors
- Visually light connection between buildings
Before you order: points to check
- Structural calculations are part of the design
- Listed building consent or planning permission is commonly needed
Do you need permission in Merthyr Tydfil?
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. A side-facing rooflight within 10.5 m of the boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
In Wales the limiting values are 2.2 W/m²K for a rooflight and 1.4 W/m²K (or WER Band B) for a roof window in an existing house. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
Read the planning permission guide before you commit to a design.
Guide prices for Merthyr Tydfil
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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 |
From enquiry to finished job
- Tell us what you have. Send the CF47 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Merthyr Tydfil, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Glass links & glass box roofs near Merthyr Tydfil
More we do in Merthyr Tydfil
Questions about glass links & glass box roofs in Merthyr Tydfil
Do glass links need planning permission?
Often, yes — and listed building consent if either building is listed. We can provide drawings and product data for your application.
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
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 you fit glass links & glass box roofs in Merthyr Tydfil?
Yes. We survey and fit glass links & glass box roofs in Merthyr Tydfil and across Mid Glamorgan. Send your postcode and we will offer a survey date when we reply.
Do I need to be at home for the survey in Merthyr Tydfil?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
