Dor-Mar Heating & Air Conditioning | Trusted HVAC Repair in Columbus, OH

Short cycling is a common issue in our area, often caused by an oversized system, a dirty air filter, or a refrigerant leak. It puts extra strain on your equipment and increases energy bills. Our technicians are experienced in diagnosing the root cause—whether it's a simple filter change or a more complex repair—to restore efficient and reliable operation for your Columbus home.

Yes, we offer HVAC system maintenance to help prevent unexpected breakdowns and extend the life of your equipment. Regular maintenance is key to keeping your system running efficiently, especially with Ohio's varying seasons. Our service helps catch small issues before they become major repairs, saving you money and ensuring your home stays comfortable year-round.

We are proud to install and service quality Rheem water heaters, known for their reliability and efficiency. For urgent needs like a failed water heater, we offer same-day service in Columbus and surrounding areas. Our team can assess your home's needs, recommend the right unit, and handle the professional installation promptly to get your hot water restored.