Industrial cleaning and maintenance services

Minimising downtime through smart, scalable maintenance

Trusted by New Zealand’s leading industries, InterGroup combines innovation, scale and industry-leading expertise to keep our customers’ operations running at peak performance.

With over 45 years of experience and the country’s largest fleet of specialist equipment, we support customers across the oil and gas, food and beverage, manufacturing, energy, ports, and processing industries.

Through ongoing investment in technology, strong safety systems, and a competent workforce, we enable safer, faster, and more efficient operations in complex industrial environments.

Our services include automated tank cleaning, heat exchanger cleaning and bundle pulling, pipeline pigging and descaling, chemical cleaning, water jetting, hydro jetting, and precision hydro demolition.

We also deliver fin fan cleaning, online cleaning, confined space entry and rescue, catalyst handling, maintenance and shutdown services, offshore services, cold cutting, and full decontamination, decommissioning, and dismantling.

High Pressure water jetting on site

How we’ve been working with infrastructure providers across New Zealand

Gerotto Lombrico in use by InterGroup at Ohaaki cooling towers
Gerotto Lombrico Sludge Removal – Ohaaki Cooling Towers

Gerotto Lombrico Sludge Removal – Ohaaki Cooling Towers

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Aqua cutter - Merville mall
Hydro Demolition – Merivale Mall Aqua Cutter Precision

Hydro Demolition – Merivale Mall Aqua Cutter Precision

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Heat exchanger cleaning example
Industrial Heat Exchanger Cleaning – Top Energy, Ngawha Geothermal

Industrial Heat Exchanger Cleaning – Top Energy, Ngawha Geothermal

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Want to learn more about our other cleaning and maintenance services?

INFRASTRUCTURE

COATINGS

ENVIRONMENTAL SERVICES

WASTE DISPOSAL

FACILITY MAINTENANCE