Experienced HVAC Repair in Chicago, IL 60631 - Therm All Mechanical

In Chicago's humid summers, frozen coils are often caused by restricted airflow from dirty filters, low refrigerant, or a failing blower motor. It's a common issue. First, turn the system off to let it thaw completely to prevent damage. Then, check and replace your air filter. If the problem persists, call us. Our technicians will diagnose the root cause—like a refrigerant leak or electrical issue—and perform a precise repair to restore efficient cooling and prevent future freeze-ups.

Thermostat issues can range from simple to complex. Often, it's just dead batteries, a tripped breaker, or dust inside the unit—things we can fix quickly. However, in older Chicago homes, faulty wiring or a mismatch with your modern HVAC system can be the culprit. We'll test your thermostat and wiring to determine if you need a recalibration, a repair, or an upgrade to a more reliable programmable or smart model that better handles our temperature swings.

During winter, we most often see complete furnace failures due to ignition or heat exchanger issues, leaving homes dangerously cold. In summer, it's total compressor failures or severe refrigerant leaks causing no cooling. For these real emergencies, we prioritize same-day service for our Chicago neighbors. Our team is equipped to diagnose the problem on the spot and provide a clear repair plan to get your heat or air back on as quickly and safely as possible.