Diving Company in Oslo

Ships calling at Oslo, and port and quay owners around the inner Oslofjord, can have underwater surveys, hull work and repairs done without going to dock. Kristiansand Bygg AS sends divers, our own ROV and the equipment the job needs to the berth.

We mobilise from our bases in Kristiansand and Flekkefjord, and when a team is available we can mobilise the same day.

Book a diving team Call +47 902 03 797

Work we have done in Oslo

Kneppeskjær quay, Oslo: advanced underwater wire sawing.
Fibre optic cable in the Oslofjord and the Akerselva river: cable laying at several locations in the Oslofjord area and into the Akerselva.
Core drilling at 10 m depth.

DNV-approved in-water survey

Kristiansand Bygg AS is a DNV Approved Service Supplier for in-water survey (IWS) of ships, using both divers and ROV, in line with DNV-CP-0628. Our certificate number is AOSS0000S13 and it runs until 2029. Whether the survey can be accepted as UWILD for a given vessel is decided by its classification society.

The scope is agreed with the classification society's surveyor before the dive. A live two-way video link lets the surveyor follow the inspection from their own office. We dive and inspect down to 50 m.

Hull, propeller and sea chest inspection

Shell plating, flat bottom and bilge keels
Propeller blades, propeller nozzles and rudder
Sea chests, gratings and other hull openings
Thruster tunnels and anodes

Findings are recorded on video and stills and delivered in a written report. More on methods and reporting: underwater inspections.

Commercial diver filming a ship propeller blade with marine growth — Each propeller blade is filmed close up so the condition can be judged from the report.

Quays, cables and underwater works in the Oslofjord

Wire sawing under water: controlled removal of concrete and steel structures without vibrations, which matters on quays close to traffic and buildings. More: underwater wire sawing.
Core drilling under water for anchors, cables and penetrations.
Cable and pipe work: laying, securing and inspection of subsea cables and pipelines.
Quay rehabilitation and underwater casting on concrete quay fronts.
ROV inspection of quays and pipelines.

Getting to Oslo

By road: our mobile equipment rig and mobile land-based dive station can be set up on quays with road access.
By sea: our dive vessels Kamilla and Dykkeservice 5 (32 tm crane) can work directly at the hull or quay.

Reference from another Norwegian port

Gearbulk, M/V Misago Arrow (Grenland): PBCF inspection and installation done afloat.

What we need from you

Ship name and IMO number, or quay name
Port, quay or anchorage position
Time window
What you want done, and whether class is involved

FAQ

Can the in-water survey be done while the ship is alongside in Oslo?

Yes. We inspect at the berth where the ship is lying, or from our dive vessel if it is at anchor. The scope is agreed with the class surveyor beforehand.

What is your DNV approval?

Kristiansand Bygg AS is approved by DNV as a service supplier for in-water survey of ships with divers and ROV, under DNV-CP-0628. Certificate AOSS0000S13 is valid until 2029. The classification society decides whether the survey can be accepted as UWILD for each vessel.

Have you worked in Oslo before?

Yes. We have carried out underwater wire sawing at Kneppeskjær quay, core drilling at 10 m depth, and fibre cable laying in the Oslofjord and into the Akerselva river.

How fast can you get to Oslo?

When a team is available, we can mobilise the same day from Kristiansand or Flekkefjord.

Contact

Book a diving team Call +47 902 03 797

Phone: +47 902 03 797
Email: epost@kristiansandbygg.no
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