About STM

With its roots in marine engineering, STM Engineering Ltd was launched in 1985 by managing director Garry Shears. Since then the company has expanded into new specialist areas and today employs more than 40 people on four different sites.

The company’s headquarters are at Gapton Hall, Great Yarmouth, Norfolk, where our workshops carry out engineering, machining and fabrication services for a broad portfolio of clients.

STM has two other sites on the quayside in Great Yarmouth, where it undertakes rewinds, electrical and diesel, and marine engineering services, and on the river in Middlesbrough, where the company mainly carries out diesel and marine engineering services

Specialist services include:

Engineering machine shop
CNC turning and milling
Diesel engine service and overhaul
Marine engineering and steering systems repair and overhaul
Mechanical engineering services – pumps, compressors and gearbox overhaul
Hydraulic tensioning
Laser alignment services
Fabrication and welding
Pipework and plumbing
Ultrasonic cleaning
Generator repair and overhaul
Motor repair and overhaul
Marine and industrial electrical services

STM’s rewinds operation specialises in the rewind, repair and refurbishment of all types of electrical machines.

The company is also an agent for MAN engine and components.