Our Capabilities

At Barrett & Sons, we provide a wide variety of commercial and industrial heating and air conditioning solutions, including sales, service, maintenance contracts, and special design installations. With over 72 years of combined experience, our team is recognized as a leader in the industry, setting standards for quality service and operational expertise.

BSI maintains a staff of expert technicians that service properties across the state of Texas. Each technician has worked on a wide variety of systems from the oldest boilers to the latest microprocessor driven multipurpose controls. BSI adheres to strict internal policies to ensure the business, as well as its customers, are within the guidelines of all EPA standards.

  • Maintenance Contracts
  • System Inspections
  • 24-Hour Service & Repair
  • System Design & Installation
  • Reciprocating, Scroll & Screw Compressors
  • Liquid Chillers
  • Direct Expansion Systems
  • Cooling Towers
  • Low Pressure Boilers
  • Recirculation Pumps
  • Conventional, Solid State, & Pneumatic Controls
  • Computer Room Maintenance
  • Temperature Controls
  • Certified Air & Hydronic Balancing
  • Energy Management
  • Air Filter Service
  • Pipefitting & Welding
  • Mechanical System Sales & Installation
  • New Construction
  • Chiller Tube Analysis
  • Tenant Finish Out
  • Refrigeration
  • Process Piping


Barrett & Sons is a leading provider of commercial, industrial, and residential HVAC services for San Antonio and the surrounding tri-county area.