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emergency service

When you need an HVAC system in Clarksville for your home or business, MainStream’s NATE certified skilled technicians have the know-how to diagnose, adjust or repair your equipment with minimum interruption to your comfort. We specialize in air conditioning, heating systems, geothermal, ventilation or refrigeration systems.

We always charge a low $49 diagnostic fee, even for an emergency call!

  • furnace repair24-hour emergency service – WE NEVER CLOSE
  • Service or replacement for any brand cooling, heating systems, geothermal, ventilation or refrigeration system
  • Preventive maintenance on all brands and types of systems
  • No overtime or weekend charges
  • Reliable, written, and guaranteed quotes
  • A variety of replacement systems and equipment to fit your budget
  • Billing by the JOB, not by the hour
  • Cost-benefits analysis for energy savings
  • Attractive financing alternatives
  • Dependable quality service from a TN certified 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

Call us today if you need:

  • Energy Saving Tune-Up – reduce current power consumption by up to 50% (Semi-Annual)
  • Duct Blast (Duct Leak Search) – stop paying to condition your crawl space or attic
  • Recharge low refrigerant
  • Whole House Duct Decontamination
  • Indoor Air Quality Test
  • Duct Cleaning
  • Thermostat Installation
  • Maintenance on Commercial Ice Machines and Walk-In Coolers
  • And much more

We also carry many accessories and options, including, but not limited to:

  • Indoor air cleaners and sterilization systems
  • Duct cleaning services
  • Humidifiers and Dehumidifiers
  • Standard, Medium and High Capacity Air Filters
  • Carbon Monoxide Detectors
  • Energy Savings Thermostats, including cell phone accessible
  • Door security systems linked to your wireless thermostat