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Claim This BusinessCallison's Heating & Air has served the Kennesaw community since 2019, building a reputation as a trusted residential HVAC contractor in the greater Cobb County area. The company holds proper licensing for Georgia HVAC work and maintains an excellent 4.7-star average across 15 verified customer reviews. Technicians at Callison's specialize in both new system installations and repairs, with particular expertise in Daikin heat pump systems that outperform traditional single-stage equipment. Homeowners in Kennesaw, Marietta, and Acworth rely on Callison's for transparent pricing and equipment recommendations that match their specific home profiles and budgets.
What distinguishes Callison's Heating & Air from neighboring contractors is their commitment to same-day responsiveness paired with methodical post-installation follow-through. Multiple reviewers recount situations where technicians arrived at the property well into evening hours to ensure heating or cooling was restored before departure. The company offers annual service contracts for ongoing maintenance, and they stand behind their installations with follow-up support when customers encounter issues. Their approach combines manufacturer-certified equipment knowledge with personalized service that larger companies often cannot match.
Ronnie Simmons describes a heating system failure that required a complete new unit installation, and the Callison team remained on-site until nearly 10 PM making sure the home had functional heat before leaving. Kenny Rogers has worked with the company since 2019 and specifically calls out technician Zac as consistently respectful, prompt, and professional across multiple service calls. Lauren Eckhoff appreciated that the company dispatched a technician the very next day after her call, and JS F appreciated the convenience of signing up for annual service coverage after experiencing the team's responsiveness on breakdown calls.
All eight detailed reviewers awarded 5-star ratings, with every testimonial mentioning specific technicians by name or noting the company's fast response times. Customers frequently mention the team staying late to complete installations and the owner personally checking system functionality after setup.
Diagnose cooling failures, perform tune-ups, and maintain systems for peak summer performance in Georgia heat.
Fix heating failures, service furnaces, and ensure reliable warmth during occasional winter cold spells.
Install Daikin heat pumps and complete ducted systems with professional timing and post-installation verification.
Same-day response for system failures, including late evening calls and urgent heat or cool restoration.
Regular maintenance plans that include tune-ups and priority breakdown coverage for subscribers.