JMSI  is a full service mechanical contractor serving customers throughout Guam.  People when asked will tell you that the most important factor in a major purchase is price.  Recognizing this, we put our mechanical staff to work exploring workable options and solutions to fit within your predetermined budget.  We have some of the best project managers, engineers and technicians in the area.  At the construction stage, the fact that so many of the skills required are “in-house”, makes the job coordination easier, helping to ensure that your project comes in on time and on budget. 

No matter the size of your company or the nature of your business, your mechanical systems can have tremendous impact on your bottom line.  However, this kind of risk can be greatly reduced through proper system design and maintenance.  We would be pleased to perform a no charge maintenance audit of the mechanical equipment in your building(s) in order to help you determine the level of service you require and the suitability of your equipment to the task at hand.

  We provide in house AutoCAD services with our engineers and project managers with extensive design assist experience.