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We offer a wide range of products and services to meet your every need.

What Mainstream does for you...

  • Service and replacement for all cooling and heating systems
  • Preventive maintenance
  • Reliable, written, and guaranteed quotes
  • A variety of systems and equipment to fit your budget
  • WE NEVER CLOSE - 24-hour emergency service
  • No overtime or weekend charges
  • Billing by the JOB, not by the hour
  • Cost-benefits analysis for energy savings
  • Attractive financing alternatives
  • Dependable quality service from a drug free and background checked workforce
  • Friendly and professional customer support
  • The most up-to-date products and services available
  • Red Carpet Treatment - Red Booties
  • Geothermal Technology
  • We Service ALL Brands

We also carry many accessories and options including, but not limited to: humidifiers, dehumidifiers, standard medium and high capacity air filters, carbon monoxide detectors, and energy saving thermostats. 

Please Contact Us to inquire about how we can improve your existing home with our quality products and services. Thank you for your interest!



1539-A Ashland City Road; Clarksville, Tennessee 37040 - P. 931-647-9610