With scorching summer heat during Naperville summers, there’s no room to compromise on AC performance. As a locally-owned and operated business, G&R Heating and Air specializes in air conditioning installation and repair in Naperville and other Chicago communities.
Whether your AC is ready for replacement or experiencing a major malfunction, our team delivers professional service and high-quality workmanship to ensure your home’s comfort and energy efficiency.
Our AC Repair Services

At G&R Heating and Air, our AC repair services help quickly address any issues your cooling system may encounter.
Whether a minor fix or a major malfunction, our HVAC team provides a thorough diagnosis and effective repair solutions. Our comprehensive diagnostic process involves inspecting your system and identifying faulty or damaged components contributing to your performance loss. Common issues include blocked air filters, faulty thermostats, frozen coils, and more.
Once we identify the underlying problem, we’ll provide a clear estimate and an upfront explanation of the repair, ensuring transparency and communication throughout the repair process.
New Air Conditioning Installation
When it’s time to replace an outdated or aging AC or install a brand-new system, G&R Heating and Air provides expert AC installation services in Naperville, Illinois.
Selecting the right AC unit is essential for your home’s comfort and energy efficiency. Our technicians consider the size of your home as well as its layout, windows, doors, insulation, and other factors. With this information, they can calculate your home’s exact cooling load and help you choose a properly sized model to optimize performance, efficiency, and longevity, maximizing the value of your investment over your AC system’s operating life.
Proper installation is important for your system’s lifespan and efficiency. Our technicians install your system according to best practices, local building codes, and safety regulations. Post-installation inspections and maintenance keep your system running smoothly.
Common Air Conditioner Issues
Air conditioners may experience various issues throughout their operating lives. Some only need routine maintenance, while others may require more complex or involved repairs. See these common AC issues that many Naperville homeowners face.
Faulty thermostat
Faulty thermostats may lead to inaccurate temperature readings, causing your AC to turn on and off at the wrong times or failing to function altogether. Replacing dead batteries, resetting programming, or calibrating a faulty thermostat may resolve certain problems. In other cases, your technician may inspect temperature sensors, wiring, and other components for damage that may prevent proper communication with the rest of the system.
Refrigerant leaks
Refrigerants are an important part of the heat exchange process, circulating through the evaporator coils to absorb heat and release it at the condenser coils. Low charge or leaks prevent your AC from properly cooling air, sometimes resulting in warm air blowing from your vents, strain on the compressor and various components, and system failure if left unaddressed. A technician can inspect your refrigerant lines and identify and resolve the underlying cause.
Frozen evaporator coils
Evaporator coils may freeze due to restricted airflow, low refrigerant charge, and associated issues. Frozen coils prevent refrigerants from properly absorbing heat, forcing your system to work harder, strain its components, and consume more energy to cool your home.
Clogged air filter
Air filters trap dust, debris, and other particles and contaminants, and they require regular replacement to prevent buildup and blockages. Clogged air filters restrict airflow and cooling efficiency, leading to reduced cooling and damage to other components.
Replacing filters may resolve other concerns relating to poor airflow, such as uneven temperature distribution, high energy bills, frozen components, and unpleasant odors. If poor airflow persists, your technician may inspect your ductwork, vents, and blower fan motor.
Emergency AC Repair
While AC breakdowns are generally inconvenient, some problems can’t wait until regular business hours. If an AC breakdown compromises your home’s comfort or safety, rely on the G&R Heating and Air HVAC team for emergency AC repairs in Naperville.
We offer 24/7 emergency AC repairs to ensure you’re never left vulnerable to severe temperatures or other urgent issues. Whether your system is blowing warm air, makes strange noises, or has stopped working altogether during holidays or on the weekends, we’ll respond swiftly to restore your cooling system to its proper function. G&R Heating and Air is only a phone call away for urgent concerns, such as:
- Extreme heat
- Electrical problems
- Burning smells
- Pooling or leaking water
- Total system failure
Rely On G&R Heating and Air for AC Repair and Installation in Naperville

For your AC repair and installation needs in Naperville, trust the G&R Heating and Air team. Our HVAC team is licensed and insured and equipped to address AC concerns across a range of makes and models. Our customers enjoy numerous benefits by relying on us for AC repair and installation, including comprehensive maintenance packages, affordable and flexible payment options, and more. Contact G&R Heating and Air for a free quote to repair or install a new air conditioning unit.
Frequently Asked Questions
How do I know if my air conditioner needs repair?
Several signs suggest that your AC needs repair, and recognizing them early helps you avoid larger and more costly issues later on. Call G&R Heating and Air for AC repair if you notice these signs:
- Poor airflow
- Insufficient or uneven cooling
- Warm air instead of cool air
- Leaking water or excessive ductwork condensation
- Frequent cycling
- Unpleasant odors
- High energy bills
- Abnormal sounds
How can I prevent AC breakdowns?
Regular maintenance is the best strategy for preventing AC breakdowns and keeping your system running efficiently all summer. In addition to scheduling professional tune-ups at least once per year, ideally in the spring, follow these upkeep tips:
- Replace air filters every 30 to 90 days, depending on usage.
- Keep the outdoor unit clear of branches, dirt, and other debris.
- Upgrade to a programmable or smart thermostat.
- Keep vents open and unobstructed.
- Seal leaks and gaps in your home.



