Glass links & glass box roofs in Johnstone: what is involved?
We handle glass links & glass box roofs across Renfrewshire and Inverclyde, including Johnstone. In short: frameless glass links joining old and new buildings. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Tenements and flats are common in Scottish towns and cities, where rooflights over stairwells and top-floor flats need the owners' and factor's agreement. Think of glass links & glass box roofs for joining a period house to a new extension or annexe.
Jobs in Johnstone are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Choices for your Johnstone project
- Heated glass on some systems
- Frameless sliding or pivot doors
- Concealed gutters and drainage
- Solar-control and low-iron glass
- Structural glass beams and fins
- Keeps period walls on show
- Can include frameless doors
Before you order: points to check
- Abutments with old masonry need careful weathering
- Structural calculations are part of the design
Consents for glass links & glass box roofs in Johnstone
Planning rules in Scotland differ: rooflights are treated as external alterations under Class 2B, with no permitted development in conservation areas. Listed buildings need listed building consent where the work affects their character.
Scottish energy standards for glazing, including rooflights, use an area-weighted average of 1.4–1.6 W/m²K in extensions, so most modern units comply comfortably. Replacing a rooflight, frame included, does not need a building warrant, but the work must still meet the building standards.
Read the planning permission guide before you commit to a design.
Guide prices for Johnstone
Prices below are shown including and excluding VAT. In Johnstone, 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 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Johnstone, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Johnstone
Common questions
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
Is structural glass safe?
Structural glass is laminated so it stays in place if a ply breaks. The manufacturer designs it for the loads involved.
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.
Is the survey in Johnstone free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do you fit glass links & glass box roofs in Johnstone?
Yes. We survey and fit glass links & glass box roofs in Johnstone and across Renfrewshire and Inverclyde. Send your postcode and we will offer a survey date when we reply.
