DGG Heating and Air Conditioning | Expert HVAC Repair in Walnut Creek, CA

Our preventive maintenance service is designed to keep your system running smoothly and efficiently. We perform a thorough check, which includes inspecting and cleaning critical components like the evaporator coil, checking refrigerant levels, testing safety controls, and assessing the blower motor. A key part of our service is checking and replacing your air filters if needed, which is vital for maintaining good airflow and indoor air quality, especially given the local pollen and dust. This proactive care can help prevent unexpected breakdowns and extend the life of your system.

This is a common question. We recommend a repair if your system is relatively young (under 10-15 years) and the issue is isolated, like a faulty capacitor or a minor refrigerant leak. A replacement is often more cost-effective if your system is older, requires frequent repairs, or is inefficient, leading to high energy bills. During our free estimate, we'll assess your system's age, condition, and performance, and discuss all options with you, including potential upgrades like a heat pump or zoning for better comfort control in different areas of your Walnut Creek home.

Uneven cooling is a frequent issue we address. It can often be traced back to two common local factors: a clogged air filter restricting airflow or a dirty evaporator coil reducing the system's ability to absorb heat. It can also point to issues with your ductwork, such as leaks or poor design, which prevent conditioned air from reaching all rooms. We start by checking the filter and coils, and if needed, we can perform a duct assessment. Solutions may include a thorough cleaning, duct sealing or repairs, or the installation of a zone control system to better manage temperatures in different areas.