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Heat Exchanger Expertise

DIALOG Fitzroy are customer focused, technology driven fabricators of shell and tube heat exchangers, air cooled heat exchangers, pressure vessels, columns, and tanks.

We are your trusted heat exchanger partners, our in-house, thermal design engineers and ASME welders and fabricators can design and build custom engineered solutions for your company’s specific heat exchanger needs. Our experience and expertise have earned us preferred supplier status with leading industrial processing companies in New Zealand and we are approved heat exchanger providers for gas production operators based in Queensland, Australia.

With over 60 years of experience we provide our clients with custom fabricated heat exchangers, pressure vessels and structures that conform to specifications, applicable codes and accepted industry standards. Our services range from providing customer specific heat exchanger equipment and technical support to consulting and turn-key engineered solutions. 

Our team of engineering design specialists would be happy to talk to you about understanding shell & tube and air cooled heat exchangers, and solving heat transfer problems with shell & tube and air cooled heat exchangers.


The types of heat exchanger solutions DIALOG Fitzroy can supply include:

  • Shell & Tube Heat Exchangers
  • Process Heat Exchangers
  • U-tube Heat Exchangers
  • Air Cooled Heat Exchangers
  • Aftercoolers
  • Intercoolers
  • Evaporators
  • Condensers
  • Driers
  • Calorifiers
  • Reboiler
  • Enhanced Tube Heat Exchangers
  • Pasteuriser Heat Exchangers
  • Exhaust Gas Coolers


We regularly work with a wide variety of materials during heat exchanger design and build including: carbon steel, stainless steels including duplex and super duplex, copper alloys and exotics.

We can also provide your heat exchanger equipment with a number of coatings, including hot dip galvanizing, thermal arc metal spraying and long life paint systems.

In addition to design and manufacture, we are experts in heat exchanger refurbishment. We adopt a consultative approach during the refurbishment or repair process, considering potential design modifications to address a service problem or improve heat exchanger efficiency.

Get in touch

DIALOG Fitzroy - Head Office and Workshops

691 Devon Road, New Plymouth, Taranaki 4312, New Zealand

Phone: +64 6 759 5252       


DIALOG Fitzroy Australia

1294 Lytton Road, Hemmant, Brisbane QLD 4174, Australia

Phone: +61 7 3900 4500   


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