08/05/2026
Recently completed a challenging oversized DGU replacement project involving the removal and replacement of a defective unit with new like-for-like glass to exactly match the existing specification, performance requirements, and appearance of the façade.
The replacement unit measured over 4m long and weighed in excess of 145kg, so detailed planning and specialist lifting equipment were essential from the outset.
To carry out the works safely within the restricted working area, we utilised a specialist spider mini-crane complete with a dedicated 6 in-line vacuum suction lifter to safely manoeuvre both the defective and replacement glass during the lifting operation. Alongside this, we also used our own secondary safety retention system throughout mobilisation and installation for additional protection and control.
Externally, access was achieved using a MEWP/scissor lift to allow safe removal and reinstatement of pressure plates and cappings, as well as accurate positioning of the power sucker during installation.
Due to the size of the defective DGU, specialist preparation was required to safely remove, transport, and dispose of the unit from site. All ground level areas below the works were fully cordoned off and controlled at all times by a dedicated ground marshal to ensure safety for the building and its tenants throughout the works.
A great example of how the right planning, equipment, and team can deliver complex glazing replacements safely and with minimal disruption on occupied buildings.