Notice MainStream Heating & Cooling plans to continue to provide you our best service during this crisis. Please forgive us as we ask our technicians to no longer shake your hand or hug you. We are asking them to wash their hands more frequently and use hand sanitizer. Have no worry, if you need us, we plan to get to you as fast as possible to ensure your home is comfortable and safe. We are open 24/7 and always offer a LOW $49 repair diagnostic if you have an emergency.
Fast Service at a Fair PriceTM Call or text us TODAY! (931) 647-9610  Mainstream on Facebook


* Limit One per household. Must be presented at time of service. May not be combined with any other offer.

  • $49 Per Unit

    Comprehensive system cleaning and performance enhancement (first time customers only)

  • 20% OFF

    All indoor air quality products

  • $100 OFF

    Extended 10 year labor warranty all systems when replacement purchased

  • $25 OFF

    Any repair over $49

  • FREE 2nd Opinion

    On written repair estimate over $500

  • $350 OFF

    Purchase of any HVAC replacement (cash or check only)

  • ONLY $49

    For emergency weekend, evening or holiday diagnostic call

  • Free Carbon Monoxide Detector

    With purchase of Gas Tune-Up

  • $92 Duct Leak Test

    Receive $92 Credit with any repair. Cheaper than Aeroseal.

  • $50 OFF

    Wi-Fi Nexia Thermostat upgrade

  • Free Estimates

    on unit replacement or 2nd opinion on replacement quote. Potential savings over $700!