Keller Heating & Air Conditioning

Keller Heating & Air Conditioning holds a 4.9-star rating across 993 reviews, positioning it among the most-reviewed and highest-rated HVAC contractors in the Bloomington area. The company has operated continuously since 1972, serving residential and commercial clients throughout Bloomington and neighboring communities in Monroe County. This longevity reflects sustained customer trust and operational stability in a region characterized by humid summers and variable winter temperatures that demand reliable heating and cooling systems year-round.

The contractor offers several distinguishing capabilities documented on its website. Indoor air quality specialists address filtration, ventilation, and air purification concerns common to older Midwest homes. Sheet metal fabrication is performed in-house, enabling custom ductwork modifications without reliance on third-party subcontractors. Service agreements provide scheduled maintenance with extended warranty options, while financing programs help homeowners manage larger installations. Thermostat and zoning solutions allow multi-level homes to balance temperature differences, a frequent challenge in the hilly terrain surrounding Bloomington.

Reviewers describe specific technicians by name in their feedback. Nathan provided an estimate for a zoning system and offered practical temperature-balancing tips rather than recommending an unnecessary system. Austin was described as professional, knowledgeable, and attentive during service calls spanning 23 years. Shane Keller assessed a heat pump replacement and mini-split installation, presenting multiple system options while answering questions directly. A reviewer noted that a technician arrived within 90 minutes after a power interruption affected their thermostat, demonstrating responsive follow-up service.