Based in Comber, County Down, JM Electrics supply electrical cable jointing services to the power sector across the UK and Ireland. With over 30 years' experience, we are the leading underground cable jointing specialists, with a reputation for providing a professional, quality service.We have a highly skilled and dedicated workforce, providing a comprehensive range of cable jointing services.Our aim is to deliver the highest standards of workmanship, productivity and excellent customer service in a safe and efficient manner for our customers.