Keystone Heating & Cooling: Professional HVAC Services Serving Saint Louis, MO 63117

This is a common issue here, often caused by dirty condenser coils restricting airflow, low refrigerant levels, or a failing compressor. Our technicians perform a comprehensive diagnostic to pinpoint the exact cause, clean the system thoroughly, and make the necessary repairs to restore full cooling power to your home.

We recommend professional maintenance twice a year: once in spring for your air conditioner and once in fall for your furnace. This seasonal tune-up is crucial for our climate. It cleans critical components like coils, checks refrigerant levels, and ensures all parts are working efficiently to prevent breakdowns during extreme heat or cold.

Look for warning signs like strange noises (grinding, banging), uneven cooling or heating in different rooms, a sudden spike in your energy bills, or the system constantly cycling on and off. These often indicate a specific component failure. We recommend calling us promptly for an expert diagnosis to prevent further damage and restore your comfort.