64 Commercial HVAC Contractors in Huntsville, AL

Huntsville's growing defense and tech sector has driven significant commercial construction activity, and the humid subtropical climate — with summers exceeding 90°F for nearly two months — creates real mechanical stress on rooftop units and commercial split systems year-round. The commercial HVAC market here is focused: 14 contractors with an average 4.8 stars across 7,258 reviews, and 5 offering 24/7 emergency coverage.

Commercial maintenance contracts for small businesses under 5,000 sq ft typically run $1,000–$5,000 annually; mid-size facilities from 5,000–25,000 sq ft range $3,500–$10,000. Per-unit rooftop maintenance runs $500–$2,000 depending on system age and access. Alabama's HACR licensing applies to commercial work as well as residential — contractors must hold state credentials for both refrigeration and air conditioning work.

Blake Brothers Services Corporation's 5,090-review history includes commercial accounts, with technicians praised for thorough work and genuine second opinions. Annette Hale's Indoor Comfort Systems earns 4.9 stars across 840 reviews, with a locally owned approach that brings technicians Chad McCullough, Ronnie Austin, and Joseph by name into client relationships. Vandy's Heating & Air Conditioning earns standout mentions for going beyond the service call — technician Brandon Cerpa is praised for personally helping a customer navigate a TVA rebate.