G&G Marine is a commercial diving company with offices in The Woodlands, Texas (just a stone’s throw north of Houston) and Harvey, Louisiana, but travels anywhere within the continental United States to get the job done professionally and economically. Our contracts have included cleaning cooling towers in Illinois to pipeline repairs from Montana to Pennsylvania.

Established in 1974, G&G Marine provides an array of inland commercial diving services including but not limited to:
  • Underwater Pipeline Repair
  • Offshore riser inspections
  • Underwater Burning & Welding
  • Cooling Tower Cleaning of Basins (While Online)
  • Class Surveys - Certified by ABS, DNV-GL, Lloyd’s, BV, NKK and RINA
  • Ship Husbandry - Hull Cleaning, Propeller Polishing & Repairs, Sea-Chest Cleaning and Blanking of Sea Valves
  • Hull Inspections and Thickness Gauging
  • Sediment and Shell Removal
  • Thruster Removals and Installations
  • Transducer Removals and Installations
  • Certified Underwater Bridge Inspections, Services and Repairs
  • Dam Inspections and Repairs
  • Dock Inspections and Repairs
  • Lake and River Pipeline Crossing Inspections; DOT & Non-DOT Site Clearance, Debris Removal and Salvage
  • Penetration Dives (1,000’ capabilities)
  • Traveling Screen Cleaning and Repair
  • Potable Water Tower and Tank Inspections
  • Emergency Oil Spill Response and HAZMAT Diving
  • Piling Encapsulations
  • Sonar Surveys
  • Underwater Video and Photography



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