The Nationwide Dive Specialists and EngineeringServices that Bay Underwater Services NZ LTD can provide:Surface supply air diving with voice communicationsDeep diving using surface decompression chamber and oxygenDecompression chamber operationsWharf repairs and maintenanceUnderwater weldingUnderwater CuttingUnderwater constructionPiling (all forms of piling, sheet piles, casings, Split casings etc)Underwater explosives and demolitionClosed Circuit Television Video Surveys and inspectionsUnderwater (DIGITAL) Photographic Surveys and InspectionsShip propeller polishing and repairsShip repairs inspections and surveysCathodic protection readingsCathodic protection-eg: Anode placement and replacementSearch and recoveryPipeline and cable layingNDT- Non Destructive TestingMPI- Magnetic Particle InspectionROV- Remote operated vehicle, survey and inspectionUnderwater concreting, grouting and epoxyingDredging and de-watering systems