196 Emergency HVAC Contractors in Knoxville, TN

Knoxville's climate creates emergency HVAC situations in both directions — mid-summer cooling failures in humid 88°F heat and mid-winter heating outages during Appalachian cold snaps. Neither situation allows for a multi-day wait. emergency-hvac Knoxville TN has strong after-hours coverage: 29 contractors in the market, all 29 offering 24/7 availability, averaging 4.8 stars across 35,314 reviews. That full-coverage availability ratio is one of the strongest in this directory.

After-hours service calls on weekday nights run $150–$300, weekend calls $175–$325, and holiday calls $225–$450. Tennessee requires the CMC-C mechanical license — always verify state licensing when calling an unfamiliar contractor under emergency conditions, since pressure to resolve fast can lead to skipping credential checks.

Hiller's technicians Ron, Alex, and Andrew draw specific praise in reviews, including a 10-year customer account of Hiller correcting defective work from a prior contractor — that backstory reflects the kind of credibility that emergency calls require. Pipe Wrench, Knoxville's most-reviewed home services company at 5,718 reviews and 4.8 stars, has technician Brandon specifically praised for polite, professional after-hours service — exactly the profile you want when calling after midnight on a January heating failure.