Independent air and water balancing for Sydney’s commercial buildings.
NCC/BCA-compliant commissioning, testing and reports for consulting engineers, mechanical contractors and building owners.
Example balance schedule
| Outlet | Design L/s | Measured L/s | % of design | Position against the tolerance band |
|---|---|---|---|---|
| SA-01Open office north | 240 | 245 | 102% | |
| SA-02Open office south | 240 | 236 | 98% | |
| SA-03Meeting room | 120 | 118 | 98% | |
| SA-04Boardroom | 180 | 183 | 102% | |
| RA-01Return air | 620 | 610 | 98% | |
| EA-01Toilet exhaust | 150 | 152 | 101% |
Illustrative figures showing how a balance report reads. The shaded band is an example tolerance of 10% either side of design; each project’s specification sets its own.
Who we work with
Mechanical contractors
Independent commissioning that closes out your install and gets it handed over.
Consulting engineers
Measured data set against your design, so you can sign off with evidence.
Head contractors
Test results and reports ready for completion and certification.
Facility managers
A clear picture of what an existing system is delivering, and what to fix.
Our services
Independent commissioning and balancing for commercial HVAC systems across Sydney.
- Air Balancing Measuring and adjusting supply, return, and exhaust airflows to engineered design specifications. Tested against: Design airflow schedule
- Pressure Testing Duct and system leakage testing in accordance with AS 4254 and project-specific tolerances. Tested against: AS 4254
- Outside Air Flows Verifying minimum outside air rates per AS 1668.2 for ventilation compliance. Tested against: AS 1668.2
- Water Balance Hydronic balancing of chilled and heating water systems for design flow and delta-T. Tested against: Design flow and delta-T
- HVAC Survey & Report Independent testing of an existing system, with a written report on what it is delivering and what needs attention. Tested against: Original design or current need
- Stair Pressurisation Fire-mode commissioning per AS/NZS 1668.1 and AS 1851 for compliant life safety systems. Tested against: AS/NZS 1668.1, AS 1851
- VAV Calibration Setpoint verification, min/max flow calibration, and controls validation for VAV terminals. Tested against: Design minimum and maximum airflow
How an engagement works
Brief
Send drawings, mechanical spec, and scope. We quote within 24 hours.
Measure
We attend site and record as-found readings against the design schedule.
Adjust and verify
Balancing dampers and VAV setpoints adjusted until tolerances are met.
Report
You receive a commissioning report showing design and measured values for every item tested.
Request a quote
Send drawings, mechanical spec, and scope. We quote within 24 hours.
Talk to us
What to send
- Mechanical drawings
- Mechanical specification
- Scope of work and programme dates
- Site address