Commercial glazing & glass installation in London
At height, replacing glass is as much a handling problem as a glazing problem.
Before accepting a package, the glass, opening, access and movement of the unit need to be understood together.

Start with the unit
A photograph can identify a broken pane.
It cannot reliably establish:
- glass make-up;
- thickness;
- coating;
- orientation;
- unit weight;
- edge construction;
- exact dimensions;
- fixing arrangement.
Use the existing glass schedule, drawings, markings and manufacturer information where available. Where the specification cannot be established from the records, further survey or specialist input may be required before ordering.
Replacement starts before the new unit arrives
The package needs to identify who measures, confirms the specification, orders the unit, receives and stores it, removes the existing unit, moves the replacement to the opening and accepts changes.
A wrong unit ordered confidently is still a wrong unit.
Reaching the opening and moving the glass are different problems
Rope access may place technicians at the façade. It does not replace a handling assessment or lifting plan. Unit dimensions, weight, delivery route, lifting positions and equipment need to be known sufficiently to plan the operation. Vacuum lifting equipment or another specialist arrangement must suit the actual glass and task.
Interfaces matter
Glazing work can also involve gaskets, caps, pressure plates, external seals, adjacent cladding and internal finishes. The scope needs to say which are included and what happens if deterioration is found outside the agreed opening.
Responsibility should be visible
Design, engineering checks, glass supply, lifting, specialist approvals and inspection responsibilities must be clearly allocated for the particular package.
Rope access certification is not glazing competence. Glazing competence does not automatically create design responsibility.
Send the glazing information
Send the building postcode, elevation photographs, approximate level, glass dimensions and specification if known. Include available drawings, visible markings, access constraints and required programme. The first step may be document review or an agreed assessment rather than an immediate quotation.