Loos & Sons HVAC - Longmont's Emergency HVAC Services

An improperly sized HVAC system is a common issue in Longmont that can cause hot and cold spots, frequent cycling, and skyrocketing energy bills. Our team performs a detailed Manual J load calculation, which factors in your home's square footage, insulation, window placement, and our local climate. This ensures we recommend and install a system with the exact capacity needed for efficient and even comfort in your specific home.

If you notice ice on your outdoor unit, first turn the system off at the thermostat to prevent further damage. Do not chip at the ice. The freeze is often a symptom of a refrigerant leak or airflow issue. Our repair technicians will safely thaw the unit, diagnose the root cause—such as a low refrigerant charge or dirty evaporator coil—and make the necessary repairs to prevent a recurrence and protect your compressor.

Our preventative maintenance service is designed to catch small issues before they become major repairs, especially those related to our climate. We thoroughly clean coils and components, check refrigerant levels, inspect electrical connections, calibrate your thermostat, and ensure proper airflow. This proactive check-up helps optimize efficiency, extends your system's lifespan, and is your best defense against freeze-ups and performance issues year-round.