Onix Heating & Cooling | Experienced HVAC Repair in Denton, MD

In our Maryland climate, where systems cycle between heating and cooling, ducts can accumulate dust, pollen, and allergens. Our thorough air duct cleaning and optional sanitization service helps improve your home's indoor air quality, can enhance system efficiency by allowing better airflow, and reduces the dust that circulates through your living spaces. It's a key part of maintaining a healthy and comfortable home environment.

Two frequent issues we address for Denton residents are refrigerant leaks and failed AC capacitors. A refrigerant leak reduces your system's cooling capacity, while a faulty capacitor can prevent the compressor or fan motor from starting. Our technicians are trained to quickly diagnose these problems. We'll locate and repair leaks according to EPA guidelines and replace capacitors with quality parts to restore your cooling efficiently and reliably.

Our installation begins with a careful load calculation and system design tailored to your Denton home's specific size, layout, and insulation. This ensures you get a system that's neither underpowered nor wasteful. We then handle the full installation or replacement with precision, focusing on clean workmanship and proper setup. This detailed approach, backed by our years of experience, helps maximize comfort, energy efficiency, and the longevity of your new HVAC system.