CoolSys, a parent of refrigeration and HVAC services companies nationwide, completed the acquisition of Tech Mechanical, a provider of commercial and industrial heating, ventilation, air conditioning and refrigeration services serving Southeast Michigan. Financial terms were not disclosed. "We’re excited to welcome Tech Mechanical into the CoolSys family of companies. As one of the premier HVAC companies in the Midwest region, Tech Mechanical has established long-term client relationships and an outstanding reputation. We share this vision in putting our customers first, and are looking forward to serving new customers as CoolSys expands its Midwest presence and its commercial division through this acquisition," Adam Coffey, CoolSys CEO.