What we are Known for

"Comprehensive Solutions



  • Water Cooled Chillers
  • Air Cooled Chillers 
  • DX Systems 
  • Computer Room Units 
  • Boilers 
  • Air Handlers 
  • Mechanical Plant Pumps
  • Cooling Tower
  • DDC Controls and Pneumatic Controls 

Who is SMG?

 SMG is a  San Antonio based HVAC service contractor.  We specialize in the service  of all equipment associated with your HVAC system.  We employ  technicians who have the experience, knowledge and know how to maintain,  repair or replace your systems.  

Your Air Conditioning Repair Company in San Antonio, TX​

 Service  Mechanical Group, LLC (SMG) provides a variety of HVAC services.  We  employ highly trained technicians in the service, repair, and  replacement of HVAC equipment.  Our technicians strive to be effective  and efficient when dealing with HVAC problems.  SMG is determined to  meet and satisfy its customer’s needs and expectations.  SMG is employee  owned and operated which means it is able to cut down on administration  cost, which in return these savings are passed on to the customer. ​​​