Moss Mechanical

Specialists in On-site Mechanical Engineering Service Solutions

MOSS delivers specialist on‑site mechanical engineering services with over 25 years of experience across the oil & gas, marine, defence, power, utilities, and nuclear sectors. We have worked extensively across all UK major shipyards, power stations, nuclear facilities, and petrochemical sites, while also supporting offshore and international operators.

Our capabilities include workshop quality on-site machining, controlled bolting, leak‑sealing solutions for pressurised systems, and engineered composite repairs. We pride ourselves on providing practical, safe, and effective engineering solutions to complex industrial challenges — from in-situ critical asset repairs and shutdowns to high‑risk environments where reliability and precision matter most.

As part of Denholm Energy Services, we combine proven technical expertise with industry‑leading safety performance to keep critical assets operating safely, efficiently, and reliably.