PETRONAS Tower 1 — Levels 77 to 81 & 85

Scope of works

Renovation and refurbishment works, including full M&E services within an occupied super-tall tower.

Renovation works across levels 77 to 81 and 85 of PETRONAS Tower 1 mean re-engineering services high inside one of the world's most recognisable towers while the floors around the work stay occupied. Everything moves through the same lifts and risers the building's tenants use; every noisy operation has a permitted window; every system tie-in is planned against the tower's live services.

The engineering itself — ACMV, electrical, fire protection, plumbing — is conventional. What is not conventional is delivering it at height, inside an operating landmark, to a standard its owner will accept. That is a logistics and coordination discipline as much as a design one.

Technical particulars

Floors

Levels 77–81 and 85

Scope

Renovation and refurbishment works

Constraint

Occupied super-tall tower

What this kind of commission involves

Commercial and corporate work is nearly always a retrofit inside a building that keeps trading. The design problem is ordinary; the constraint is not. Access windows, rigging routes, noise limits, landlord approvals and the fact that the floor below is occupied determine what can actually be built more often than the load calculation does.

Disciplines engaged

• Air-conditioning and mechanical ventilation, including tenant fit-out interfaces
• Chiller plant replacement, VRF/VRV retrofit or district cooling connection
• Electrical distribution, submetering and tenant supply arrangements
• Lighting design, controls and daylight response
• Fire protection, detection, smoke control and means of escape services
• Cold water, sanitary plumbing and drainage within occupied floors
• Building automation, metering and energy monitoring
• ICT pathways, security and audio-visual supporting services
• EV charging infrastructure and incoming capacity assessment
• Phased handover and commissioning around trading hours

What we watch for

The failures that recur on this building type, and where we look for them.

• Plant selected before the rigging route has been surveyed end to end
• Temporary cooling responsibility left unassigned in the contract
• Existing risers and shafts assumed to have spare capacity
• Commissioning attempted on an empty building, then failing under real load

The following describes the standard engineering scope for this sector. The specific scope of any individual commission is set by its brief and contract.

Project location