Alex McWilliams Heating & A/C - Dennis's Best HVAC Repair

Common signs include uneven heating or cooling, unusually high energy bills, frequent repairs, and excessive noise. In Dennis, improper installation often leads to ductwork issues and refrigerant leaks. We perform a comprehensive system evaluation, correct any installation errors, and ensure your system is calibrated for optimal performance and efficiency in your specific home.

In our area, frequent boiler pressure loss is often due to a small leak in the system or a faulty pressure relief valve. The salty, humid Cape Cod air can also accelerate corrosion. We'll inspect your entire heating system, including the expansion vessel and pipework, to locate and seal any leaks and replace any compromised components to restore stable, safe pressure.

We recommend professional maintenance twice a year: once in the fall for your heating system and once in the spring for your air conditioning. This proactive approach is crucial for catching minor issues—like those leading to pressure problems or inefficiencies—before they become major repairs, especially given our local climate's impact on HVAC equipment.