Infrastructure Cleaning and Maintenance
Integrated services for smarter infrastructure, cleaner communities and resilient networks
From underground asset maintenance to above-ground city cleanliness, we partner with councils, utility owners and businesses nationwide to deliver reliable, sustainable and efficient infrastructure outcomes.
With over 40 years of industry leadership, InterGroup is New Zealand’s most comprehensive provider of infrastructure support and maintenance services.
Our proven expertise spans everything from non-destructive digging and hydro excavation to critical three waters maintenance, street cleaning, graffiti removal and emergency response.
With a team of 500+ skilled professionals, a fleet of 400+ purpose-built vehicles and cutting-edge technology systems, we provide integrated, data-driven services that reduce risk, extend asset life and keep communities moving.
Explore our infrastructure services:
How we’ve been working with infrastructure providers across New Zealand

Gerotto Lombrico Sludge Removal – Ohaaki Cooling Towers
Gerotto Lombrico Sludge Removal – Ohaaki Cooling Towers
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Hydro Demolition – Merivale Mall Aqua Cutter Precision
Hydro Demolition – Merivale Mall Aqua Cutter Precision
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Tank Cleaning and Protective Coatings – Bromley WWTP