Dunwiddie Heating And Air Conditioning, Inc.

For over 40 years, we’ve served families and businesses in Bluffton and the surrounding areas with dependable heating, air conditioning, and plumbing service. As a family-owned team, we believe in honest recommendations, quality workmanship, and fair pricing. We take the time to evaluate each system, explain the available options, and help our customers make practical choices for their property and budget. Our goal is straightforward: keep homes and businesses comfortable, safe, and efficient without overselling, overcomplicating, or taking shortcuts.

We handle new construction, system replacements, retrofits, repairs, seasonal maintenance, and emergency service for residential and commercial customers. Our heating and cooling options include furnaces, air conditioners, mini-splits, boilers, radiant heating systems, and water heaters. We also offer residential and commercial maintenance plans designed to support system performance, reduce unexpected breakdowns, extend equipment life, and keep comfort systems running smoothly throughout the year. For well and pressure systems, we diagnose water-flow and pressure problems, troubleshoot pumps, electrical components, controls, pressure tanks, and switches, and provide repair or replacement recommendations based on what we find.

Geothermal service is also an important part of what we do. We provide geothermal installation, repair, replacement, and maintenance throughout Bluffton and surrounding areas. Because proper performance depends on precise system design and installation, we evaluate the property and its comfort needs before recommending equipment. Our geothermal work includes new system installation, equipment upgrades and replacement, indoor heat-pump setup, controls and thermostat installation, and system startup and testing. When an existing system is not heating or cooling properly, is operating inefficiently, or shows other performance concerns, we can diagnose components such as heat pumps, circulation systems, controls, and airflow components. Whether the need is routine maintenance, a repair, or a complete replacement, we focus on dependable service and long-term comfort.