A & B Mechanical - Castle Rock's Reliable HVAC Repair

We specialize in a full range of systems to handle Colorado's climate, including high-efficiency heating and air conditioning, geothermal heat pumps for sustainable comfort, radiant floor heating for consistent warmth, and snowmelt systems for driveways and walkways. With over 42 years of experience, we design and install solutions tailored to your home's specific needs in Castle Rock and the Front Range.

Yes, duct leaks are a common issue in our area that significantly reduce heating efficiency and drive up costs. Our NATE-certified technicians perform thorough inspections to locate and seal leaks in your ductwork. Properly sealing your ducts ensures warm air reaches every room efficiently, improves comfort, and can lower your monthly energy bills, which is especially important during our cold Colorado winters.

A frozen evaporator coil is a sign of an underlying issue, often related to airflow or refrigerant. Our experienced technicians will first safely thaw the system and then diagnose the root cause, which could be a dirty filter, blocked vents, or a refrigerant leak. We provide clear explanations and efficient repairs to restore your cooling system reliably, preventing future freeze-ups and protecting your equipment.