Stringent attention to health & safety

Specialist Industrial Services

Specialist Onshore Oil Gas Services

Over our 35+ years, we have provided specialist industrial services nationally and internationally to fertiliser plants, dairy and meat factories, sugar factories, petrochemical sites, glass, pulp, paper, steel and timber manufacturers, bitumen plants, and utility service providers.

septic tank cleaning

Onshore Liquid Waste Management

Intergroup is highly experienced in the servicing of both domestic and industrial waste systems. Our clients for this service include food processing and manufacturing businesses, restaurants and fast food chains, local government authorities, and industrial waste generators.


Onshore Water Jetting

Intergroup is an industry leader in high pressure and ultra-high pressure water jetting for industrial and marine surface cleaning and preparation.

Abrasive Blasting

Onshore Abrasive Blasting & Industrial Coatings

Intergroup has provided abrasive blasting and coating services to customers nationwide for over 35 years. Methodologies are tailored to suit your needs, budget and programme – “the finish you want, finished when you want.”

septic tank cleaning vacuum loading

Onshore Vacuum Loading

Interclean provides vacuum loading for numerous clients in different sectors (including marine, industrial, local government, construction, dairy, civil contracting, and even fast foods) across New Zealand and internationally.

Hydro Excavation

Onshore Hydro Excavation

Intergroup has five years of experience with hydroexcavation in New Zealand. Hydroexcavation uses high-pressure water instead of manual chipping. It is more precise than standard excavators, and faster than hand digging.