“Allied Heat Transfer completed the disassembly, clean, inspect and rebuild on the two water bath heaters on site with the works being completed ahead of schedule. The team was very professional, safety was a priority focus throughout the job, and the work was completed methodically and with attention to detail. The team were well prepared and keen to complete the job to the satisfaction of the customer. Alinta will be using Allied Heat Transfer for future heat exchanger works both on and offsite.”

Ben Cope

Operations and Maintenance Technician (Mech)


Allied Heat Transfer are well known for our ability to deliver excellence in the design and manufacture of heat exchangers as well as in the areas of off-site servicing and testing, but a little known fact about AHT is our ability to deliver outstanding results with our on-site work.

In just a short period of time, AHT Site Services Division has established itself as an outstanding option for our clients who require prompt and efficient turn around to the on-site servicing of critical assets.

Our Site Services Division is committed to delivering all projects on time, on budget and with zero incidents. Our Site services team can Inspect, Clean, Repair, Rebuild, Re-design and Test.

Dirty heat

This is what happens when the wrong cleaning methods are used and heat exchanger cleaning is ignored.

Cleaned and restored heat

A cleaned and restored exchanger.

Heat Exchanger Cleaning

AHT offers a comprehensive cleaning service to suit all applications and processes. Heat exchanger cleanliness effects efficiency, helps improve heat exchanger longevity and facilitates easier maintenance trouble shooting.

Through high pressure water, chemical cleaning, and mechanical solutions, AHT can remove the toughest of fouling from your heat exchanger.

Heat Exchanger Inspection and Testing

Allied Heat Transfer employs qualified Heat Exchanger and Pressure Vessel inspectors and can conduct Vessel Design verification, Condition Reporting and 10-year compulsory inspection and condition reporting.

We also offer a range of leak detection options for heat exchangers, individual vacuum tube testing, individual tube hydro testing and full exchanger hydro testing all performed to AS1210.

Repair and Rebuild

There are many reasons for the need to repair a heat exchanger. They can range from tube failure to a failed thickness survey to a full re-tube. Whatever the reason for repair, AHT has the solution.

We can identify the work scope and project manage the repair from start to finish. We offer the complete re-tube package and source material right through to the re-commissioning phase of the heat exchanger outage.

All repairs are to Australian standards and is the only company to hold an ASME R stamp.