Phone: 01929 405029 Email:
Quest Marine

Quest Underwater Services

Quest Underwater Services was formed in 1980 as a civil engineering diving company. Today Quest provides a large range of diving and marine related services and owns and operates a comprehensive fleet of marine plant and equipment from our operations base at Portland Harbour Dorset.

With experience in most marine and underwater related tasks our contracts range from local jobs on the south coast to national and international projects, having had provided services as far afield as Japan, China, U.S.A, Dubai, Kuwait, Angola and the Lebanon

Our latest news and information

Most of our work is for the military or film industry and confidentiality restricts what we can promote on these pages. But once in a while we are commissioned to carry out some interesting marine projects and we will try to include them on our news pages and our Facebook pages.


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Our Emergency phone number

0773 068 4556

Diving Services
The expertise you need.

Quest was formed primarily as a civil engineering diving company and diving is still an important part of our business with experience in most under water operations.

Whether it be clearing a fouled propeller to the building of a quay wall please contact us to see how we can help you with your requirements.

Marine Surveys
State of the art technology.

To support our Site Investigation, Mooring and Mine Clearance tasks Quest has invested in state of the art Survey Equipment. A combination of a DGPS positioning system with sub-metre accuracy, dual frequency Echo Sounder, Magnetometer, Sub-bottom profiler and side scan sonar, all computer integrated, enables highly accurate Charts to be drawn.


The following are just a few examples of the variety of range of work we can handle at Quest Underwater Services.

For an instant response call us on 01929 405029

or email us at
Emergency out of hours contact no.

0773 068 4556