
ABOUT US
Established in 1996 and based in New Hampshire, M & K Commercial Diving, LLC (M & K) is a trusted leader in marine and underwater construction services. While we specialize in expert commercial diving, our capabilities extend well beyond the waterline to support a wide range of marine construction projects. Our operations have primarily served New England, upstate New York, and Pennsylvania; however, we proudly offer our expertise nationwide.
Under the direction of owner Joshua Watson, M & K serves state and federal agencies, municipalities, and private clients with safe, efficient, and high-quality services. From underwater inspections and critical repairs to full-scale construction—including pile driving, seawall restoration, and waterfront infrastructure—we bring the expertise and equipment needed to get the job done right.

Why Choose Us?
- Available year-round
- Fully certified and insured
- Dedicated to industry-leading safety and performance standards
- Streamlined execution to consistently meet deadlines and budget targets
- Delivers responsive maintenance solutions and rapid hydro-utility emergency services
- Experienced in all phases of bridge projects—from new construction to restoration
- Provides expert inspection, cleaning, and upgrades for potable water systems, reservoirs, and pipelines
- Proficient in HAZMAT-compliant operations
- Specialized in construction and rehabilitation of toe dams and cofferdams
- Offers advanced ROV inspections with real-time video reporting
- Knowledgeable in the control of invasive species (Eurasian Milfoil and Zebra Mussels) disrupting local ecosystems and water quality
Interested in working for M & K?
We are currently seeking commercial divers. Learn more about this opportunity and apply on Indeed.com.

Your trusted provider of topside construction and underwater expertise.
