Bloomingdale Heating & Air Conditioning has been keeping homes and businesses cool throughout DuPage County for over 40 years. We service all makes and models of air conditioning systems — and as a licensed Lennox dealer, we also install high-efficiency central AC and ductless mini-split systems with 0% financing available for qualified buyers.

Whether your AC suddenly stopped working on the hottest day of the year or you’re planning ahead with a seasonal tune-up, our NATE-certified technicians arrive stocked with the most common parts so most repairs are completed in a single visit.

When your AC stops cooling, you need someone fast — not a vague four-hour window and a callback that never comes. Bloomingdale Heating & Air Conditioning offers same-day and 24/7 emergency AC repair throughout Bloomingdale, Roselle, and surrounding communities. We diagnose the issue, explain your options upfront, and fix it right the first time.

Warning signs your air conditioner needs repair:

1. AC is running but not cooling — If your system runs but the air coming out is warm or the temperature won’t drop, you likely have a refrigerant issue, a failing compressor, or a clogged coil.
2. Strange noises when the AC turns on — Banging, rattling, or grinding sounds are never normal. These often point to a loose component, worn motor bearings, or debris in the unit.
3. Weak or restricted airflow — Noticeably reduced airflow from your vents can indicate a blocked filter, failing blower motor, or duct issue.
4. Moisture or leaking around the unit — Some condensation is normal, but pooling water or refrigerant leaks need immediate attention to prevent further damage or mold growth.
5. Unusual odors through your vents — A musty smell can signal mold in the ductwork or evaporator coil. A burning smell may indicate an electrical problem. Don’t ignore either.
6. Short cycling — system turns on and off repeatedly — This is a sign of an oversized system, a refrigerant leak, or a failing compressor, and it drives up your energy bill fast.

Don’t wait on a small repair. What’s a $200 fix today can become a $2,000 compressor replacement next month.

The best way to avoid a breakdown in the middle of July is a spring AC tune-up before you need it. Our multi-point inspection covers everything from refrigerant levels and coil condition to electrical connections, thermostat calibration, and airflow. We’ll flag anything that’s wearing down before it becomes an emergency — and we give you an honest assessment, not a pressure pitch.

Annual AC inspections help you:

• Extend the life of your system
• Maintain manufacturer warranty requirements
• Catch small problems before they become costly failures
• Lower your monthly energy bills by keeping the system running efficiently
• Ensure consistent cooling throughout your home all summer

If you’re on our Maintenance Program, you get a full AC inspection every year as part of your membership — plus priority scheduling, discounted repairs, and peace of mind year-round.