220, 1/F, Fonda Industrial Building, 37-39 Au Pui Wan Street, Fotan, Hong Kong

Tel: +852 9770 4914 (Chi)  / +852 5535 9206 (Eng) | Fax: +852 2665 4309 | Email:


  • Underwater pile visual inspection in hong kong time to time visual inspection of pile carried out as a part of maintenance during the survey we look for any sign of damage or stress on the pile structure.

  • Underwater pile protection Wrap during certain period of time underwater structures like piles start to deterioration, to protect the decay in the pile structure protection wrap need to install.

  • Underwater pile thickness measurement is to check the thickness of the pile is a part for pile inspection during certain period of time unprotected pile start to deterioration  in order to check the deterioration use the ultrasonic thickness gauge and compare thickness with original and present reading. 

  • Underwater seawall & seawall toe condition survey during certain period of time underwater structures like seawal & seawall gets environmental impact seawall are the first line of defence which protect shore line, during high sea wave continuously hit the seawall result cavity between block displace the concrete blocks, to check the the seawall condition Diving Task perform seawall and seawall to condition survey.​