Sentry

Sentry Heating & Air Conditioning operates from 9435 Waterstone Boulevard in Cincinnati, Ohio, serving the metro area and surrounding neighborhoods including West Chester, Fairfield, and Mason. Founded by Dave and Corey, this contractor maintains a perfect 5.0-star rating across 20 verified reviews, reflecting consistent delivery of quality workmanship. The company holds proper licensing for Hamilton County and provides both residential and light commercial geothermal installations alongside conventional HVAC repairs.

What distinguishes Sentry from other Cincinnati contractors is their exclusive focus on geothermal systems as a primary specialty rather than an afterthought add-on service. They install WaterFurnace products, a manufacturer known for industry-leading warranties and efficiency ratings reaching 47.0 EER in their 7 Series lineup. The company offers a Savings Calculator on their website that lets homeowners estimate installation costs, projected energy savings, and financing options before committing to a consultation. Their team handles all aspects from permit coordination through final commissioning, and they communicate proactively throughout projects with status updates.

Customer reviews highlight Dave and Corey by name across multiple installations. One reviewer describes a heat pump replacement project where Dave collaborated directly to determine appropriate sizing rather than prescribing a single solution. Another customer mentions their geothermal system operated through summer 2024 without auxiliary heat needed even at zero degrees Fahrenheit, maintaining even air distribution throughout the home. The team responded personally when delivery delays affected the installation timeline, keeping the project on schedule.