D'andrea Heating & Air Conditioning | Licensed HVAC Services in Mokena, IL

Improper installation is a leading cause of system failure and inefficiency in our area. It can lead to uneven heating/cooling, frequent breakdowns, and significantly higher energy bills. Our certified technicians ensure your system is sized correctly for your home and installed to exact manufacturer specifications, preventing common airflow and pressure issues that plague poorly installed units.

Furnace ignition failure during our Illinois winters is often due to a faulty ignition sensor (flame sensor), a dirty burner, or issues with the gas valve or control board. These components can become dirty or fail due to age and use. Our technicians perform thorough diagnostics to pinpoint the exact cause, clean critical components, and make precise repairs to restore safe, reliable heat quickly.

Preventive maintenance is key to avoiding ignition and heating failures. We recommend an annual tune-up before winter, which includes cleaning the flame sensor and burners, checking gas pressure, testing safety controls, and inspecting the heat exchanger. This proactive service by our local experts ensures your system operates safely and efficiently, catching small issues before they leave you in the cold.