At G & R Heating and Air, we understand that homeowners and businesses in the Warrenville area rely on efficient heating, cooling, and air quality systems. From the extreme cold of winter to the hot and humid summer days Warrenville experiences, we combine our prompt solutions and trusted expertise to keep you comfortable all year round.
For top-quality HVAC services in Warrenville, IL, trust our experienced team to provide cost-effective solutions for any issue you may encounter.
Quality HVAC Services Located in Warrenville, IL
G & R Heating and Air are trusted experts in air conditioner and furnace repair services for homeowners and businesses alike. Located in Chicago’s Northwest suburbs, we work with clients in Elgin, South Elgin, Bartlett, St. Charles, and Geneva.
We offer a range of expert HVAC services in Warrenville, including AC unit installation, heat pump repair, furnace maintenance, and more. As a fully licensed and insured family business, we take pride in our outstanding customer service. We offer a one-year warranty on all our work, ensuring your heating and cooling systems run safely and efficiently regardless of the season.
Trusted Air Conditioning Solutions

Keep your home or business cool during Warrenville’s hot summers with our air conditioning solutions.
AC installation
A new air conditioning unit has many complex components that require the skills of a trained HVAC professional. Our technicians manage every step of the installation process, from helping you choose the right unit for your home to conducting the final testing.
AC repair and maintenance
Without proper maintenance, your air conditioner could lose nearly 5% of its overall efficiency year after year. Schedule a tune-up service with our team of professionals for optimal performance and durability. We also provide fast and efficient AC repair in Warrenville, IL.
AC replacement
Several warning signs indicate it’s time for an AC replacement. These include:
- Strange noises, like grinding or scraping
- Foul or smoky smells
- Higher energy bills
- Poor air quality
- Weak airflow
When it’s time for an AC replacement, our experts customize efficient options to your needs.
Trusted Heating Services

When the cold Illinois winters set in, you can count on us for reliable heating services in Warrenville. Our efficient solutions are tailored to meet your specific heating needs, keeping your home warm and comfortable all season.
Furnace maintenance and repair
Regular furnace maintenance extends the lifespan of your system and improves its efficiency, keeping it performing optimally during winter months with extreme temperatures.
Identifying the signs of a faulty heater can be tricky, but it’s essential for keeping your unit in good condition. If issues go unnoticed, they can lead to further damage over time. Look for the following signs:
- Unusual noises
- Inefficient heating
- Lingering and persistent odors
- Yellow pilot light
Count on our experienced technicians to provide reliable furnace repair in Warrenville, IL. Our services aim to keep you comfortable throughout the year.
Furnace installation
For expert furnace installation in Warrenville, IL, trust our team to handle both residential and commercial properties with precision. Some factors to consider when choosing a new unit include:
- SEER2 or efficiency ratings
- Home heating demands
- Size of the system
- Fuel preferences
Our skilled technicians will work with you to deliver a seamless solution tailored to your needs.
Air Quality Assurance Services
Clean indoor air is crucial, and at G & R Heating and Air, we prioritize air quality in Warrenville, IL, through our comprehensive Air Quality Assurance Services.
Experience the benefits of improved air purification with UV lights and iWave-R installation. Our professional duct cleaning services help eliminate dust, allergens, and pollutants, creating a healthier, more comfortable environment for your home or business.
Why Choose G & R Heating and Air?

For all your HVAC needs, trust G & R Heating and Air. With years of experience, our certified technicians provide expert solutions tailored to your home’s comfort. We are committed to customer satisfaction and offer friendly, professional service from start to finish. Plus, our membership program is your exclusive gateway to a world of comfort. Why settle for less when you can have the best? Contact us today or visit our website for top-quality heating and cooling services in Warrenville, IL. We’re here to keep you comfortable all year round, from AC repairs to furnace installations.
Frequently Asked Questions
Does central air add value to a home?
Central air conditioning can boost a home’s value by up to 10%. While it may not fully offset the installation cost, factors like location, smart technology, and energy efficiency can influence its impact. Beyond added value, central air enhances comfort and makes a home more appealing to future buyers.
What are the licensing requirements for HVAC contractors in Illinois?
In Illinois, HVAC contractors must be licensed at the city or county level since there is no state-level requirement for entry-level or mid-level professionals. Contractors must obtain a business license, liability insurance, and a surety bond to operate legally. They are also required to pass relevant exams and undergo a credit check.
How long does it take to have an HVAC system installed or replaced?
HVAC system installation or replacement typically takes 3 to 5 working days, though the timeline can vary based on the project’s complexity. Factors like new installations, system changeouts, or full replacements may affect the duration. Keep in mind that these are a general estimate, and actual timelines may differ depending on your specific situation.
What are the signs of a broken HVAC system?
Identifying HVAC issues early can prevent bigger problems. Watch out for:
- Warm air blowing instead of cold
- Slow startup
- Low airflow
- Water leaks or puddles near the unit
- Strange odors
- Frequent repairs needed
- High humidity levels inside your home or business premises
- Frequent cycling
Furthermore, if you possess an outdated unit, it might be time to consider a replacement.
Why does an air conditioner compressor fail?
There are several reasons why an air conditioner compressor can fail. These can include:
- Electrical problems
- Insufficient or excess refrigerant
- Blocked suction lines
- Insufficient lubrication
- Dirty filters
- Broken thermostat
- Dust, dirt, and debris in the coils
- Contaminants in the compressor
It’s important to address these issues promptly with a professional to prevent further damage.



