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There's nothing we can't do underwater

Get in touch with us today to see how we can help

With 26 years and an extensive range of dive services, if you're looking for the experts you've come to the right place.

Bay Underwater Services NZ Ltd is New Zealand's largest personally owned commercial diving and marine construction company with a range of equipment that exceeds our client's expectations.

With 54 commercial divers in our dive teams qualified in a number of specialised fields, we can deliver successful outcomes on both large and small marine construction projects. Check out our services below and get in touch with us today.

Our Services

At Bay Underwater we have a range of services we can offer. Find out more below.

Our Latest News

May 2022

Pile Inspections are another aspect of our companies work.  This time our South Island team were lucky enough to be completing these in some particularly beautiful spots in the South Island. Read more

March 2022

Getting a diver safely into the water can sometimes cause issues.  With the use of our certified man cage we are able to safely lower a diver (or two) into the water.  Lowering a man cage meansRead more

January 2022

This month we are kicking back into gear and starting off 2022 with a bang!  Some of our teams worked through the festive season break (shipping never sleeps) and now we are all fully back onRead more

December 2021

This month our team have been busy undertaking lots of offshore cleans on vessels.  MPI have set criteria for allowing vessels to enter into New Zealand waters.  Vessels have to meet bio foulingRead more

October 2021

Diving at the various hydro dams throughout the Waikato area allows our divers to experience various types of 'civil' diving and various diving depths.  A lot of the hydro dam diving jobs involveRead more

September 2021

Contamination diving is a specialised diving skill that requires the diver to wear a full contamination suit so that they do not get any of the contaminated product on them.  This can also be 'darkRead more

June 2021

One of the jobs we are working on this month involves our team taking core samples of some piling so that the core samples can be sent away for testing.  This job is being completed in the SouthRead more

April 2021

ISO 9001:2015 – Quality Management Systems ISO 1400:2015 – Environment Management Systems ISO 45001:2018 – Health & Safety Management Systems PAS99:2012 – Integrated Management System YayRead more

March 2021

Cleaning vessels for clearance by MPI has been a large part of our work once again this year.  So far this year alone we have completed 20+ vessel cleans.  Cleaning these vessels BEFORE they enterRead more

February 2021

Bridge inspections through-out New Zealand are a big part of our civil diving contracts – from one end of the country to the other.  Sometimes the contract is to supply a dive team to takeRead more

January 2021

The year has started out with a ‘bang’ with our dive teams heading off in all directions: Hydro dam inspectionsVessel inspectionsVessel offshore cleaning operationsMaking a Decompression ChamberRead more

May 2021

One of the many jobs that we completed this month was a ship inspection and propeller polish (for the purpose of inspection) alongside at the Port of Tauranga.  This inspection means that the vesselRead more

We are industry certified and are committed to safety in the often hostile environment of marine construction

The companies we work with trust us to get the job done right.