ABOUT CDM
Where Others Stop, We Dive In
Committed to Excellence Below the Surface
Commercial Diving and Maritime Ltd was formed in 2009 following a local requirement in Plymouth to provide good quality, high standard Commercial Diving Services. Initially mooring inspection and maintenance which quickly led to more extensive projects to multiple ports and harbours in the Southwest.
CDM currently supports numerous Ports, Harbours and Marinas from Salcombe to Falmouth with vessels permanently in Plymouth, Fowey and Falmouth.
Our Mission
providing industry-leading underwater and marine services
Our Expertise
CDM was established and is still run by George Gradon (Plymouth Operations) and Warren ‘Sal’ Salliss (Falmouth & SW Operations). Their combined commercial diving and marine experience ensures that all projects are planned and executed with the most efficient, safe, and cost-effective outcomes for our clients.
Our team brings extensive experience across the commercial diving and maritime sectors,
with capabilities including:
• Underwater inspections and maintenance
• Marine construction
• Underwater cutting and Welding
• Vessel recovery and salvage operations
• Shipping support
• Environmental and infrastructure projects
Innovation Below the Surface
How We
Can Help
At Commercial Diving & Maritime, we understand that every project brings unique challenges — from tight deadlines and unpredictable conditions to complex underwater environments. Our team is here to provide practical, professional solutions that keep your operations running smoothly.
OUR SERVICES
Clarity before you dive in
Frequently Asked Questions
We’ve gathered answers to some of the most common questions about our services. If you can’t find what you’re looking for, feel free to contact us directly.