How we approach glass links & glass box roofs in Belfast
Our glass links & glass box roofs service in Belfast 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.
Conservation areas and listed buildings in Northern Ireland are excluded from householder permitted development, so we check before quoting. Typical uses for glass links & glass box roofs include joining a period house to a new extension or annexe.
Belfast is the main town we list in County Antrim; we also cover nearby Castlereagh and Newtownabbey.
Options we can specify in Belfast
- Heated glass on some systems
- Solar-control and low-iron glass
- Frameless or slim-framed glass
- Structural glass beams and fins
- Concealed gutters and drainage
- Can include frameless doors
- Keeps period walls on show
Before you order: points to check
- Abutments with old masonry need careful weathering
- Structural calculations are part of the design
Planning, building control and Belfast
Most rooflights on houses in Northern Ireland are permitted development under Class B, but not in a conservation area or on a listed building's curtilage. A side-facing window within 15 m of a neighbouring boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
Technical Booklet F1 (2022) asks for replacement windows and rooflights in existing homes to reach WER Band C or a U-value of 1.6 W/m²K, assessed in the vertical position. Extensions follow a 25% glazing allowance in Technical Booklet F1.
Our planning guide covers each nation in more detail.
What do glass links & glass box roofs cost in Belfast?
These are typical supply-and-fit ranges. For an address in Belfast, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Belfast, 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.
Neighbouring towns
Related work in Belfast
Common questions
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.
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 Belfast 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 Belfast?
Yes. We survey and fit glass links & glass box roofs in Belfast and across County Antrim. Send your postcode and we will offer a survey date when we reply.
