M-F 7am-5pm, SAT 7am-12pm 24-Hr Emergency Service Available

Keeping Naperville Comfortable.

We service all makes & models!

Four Suns Heating & Cooling, Inc. is proud to be a locally owned and operated heating and air conditioning company. We are a team of expert HVAC technicians that you can count on to keep you cozy. Give us a call at (630) 753-9410 and we will be happy to answer your questions or schedule an appointment for you.

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Dependable HVAC Services in Naperville

Trust in Four Suns Heating & Cooling, Inc.

Get the job done right by calling Four Suns Heating & Cooling, Inc. We always answer our phone, always respond without delay, and offer a broad range of skilled HVAC services for your home or business in Naperville & the surrounding area. For heating, air conditioning, indoor air quality, water heating, and more, we provide free estimates and a satisfaction guarantee. We are proud to offer a one-year labor warranty on many of our services.

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Your Source for Heating & A/C Repair, Maintenance, or Installation

throughout Naperville & the surrounding area

Through exceptional job performance at a reasonable price, Four Suns Heating & Cooling, Inc. builds long-term relationships with our residential and commercial clients. We value superior customer service and rise to every challenge with the best techs available. Our team is background checked, drug tested, and meets the strenuous training requirements of a Rheem Pro Partner. 

HVAC Contractor Naperville, IL | Furnace Replacement. Heater Installation Wheaton, IL | HVAC Company Warrenville, IL

Unmatched Quality of Service

From Start to Finish

Family owned and operated, Four Suns Heating & Cooling, Inc. lives up to our reputation of unmatched excellence at every opportunity. Count on us for the installation, maintenance, and repair of your essential heating and cooling equipment, and you’ll always benefit from peak efficiency, reliability, and return from your investment. We believe you deserve quality service to keep your home and commercial space comfortable. Four Suns Heating & Cooling, Inc. remains available for emergency services across Naperville, Plainfield, & Warrenville, IL.

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Customer Reviews

We appreciate your feedback!

Our team is constantly working to improve and innovate. We are always glad to answer for your questions and comments. The Four Suns Heating & Cooling, Inc. team looks forward to keeping you comfortable for years to come!

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I can’t say enough good things about Jason and his team. My husband and I are first time home-owners and someone we knew recommended Jason for his honest work. Jason came out a couple weeks ago to look at our AC unit, quickly assessed that a new unit was needed but noted that since we had a home warranty it was worth going through them first. After multiple back-and-forth with the home warranty company and being unsuccessful, we decided to give Jason a call to install a unit because we were tired of waiting (and we were getting hot!). He had his team out in 1-day, and they installed within 3 hours. He did not charge 1 cent over his original quote from weeks ago. HIGHLY recommend this company – we will be their clients for life.

Alyssa M.
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Four Suns Heating & Cooling, Inc.

Featured Offers

Rebates, Tax Credits & Coupons

Free Rheem Econet Thermostat

with Qualifying Variable Speed 2 Stage Rheem Communicating Furnaces
with 15 Seer2 or higher Rheem AC systems

Free Estimates

Furnace and/or Air Conditioning Replacements

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Furnace Replacement. Heater Installation, Heating Repair, Heating Service, Furnace Repair & Furnace Service Naperville, IL, Wheaton, IL, Warrenville, IL & Plainfield, IL

HVAC CompanyHVAC ContractorFurnace Company ∴ Naperville, IL ∴ Warrenville, IL ∴ Plainfield, IL


We are here to help.

When your air conditioner or heating system fails, it can be stressful and never happens at a convenient time. Our team is more than happy to guide you through our process of repairing, replacing, or servicing your heating and cooling system.

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