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 business. 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 around your schedule.

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Dependable HVAC Services

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 services for your home or business in Naperville & the surrounding area. For heating, cooling, indoor air quality, water heating, and more, we provide free estimates and a satisfaction guarantee. If you’re not totally happy with the results, we’ll come back at no charge*.

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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. 

Furnace Service Warrenville, IL | HVAC Installation Naperville, IL | Air Conditioning Service Plainfield, 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 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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Thank you Four Suns for continue exceptional service in your field of expertise: Heating and cooling Home Systems! I have called you for several years now, and you are still my number one contact for this kind of services! I recommend this company without any reservations! Call now!

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Four Suns Heating & Cooling, Inc.

Featured Offers

Rebates, Tax Credits & Coupons

Free Wi-Fi Thermostat

With 96% efficient furnace and 16 SEER A/C complete system (or higher)

Special Buy

iWAVE-R Air Purification System for $700

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Heating Service, Furnace Repair, HVAC Installation, Heating and Cooling & AC Repair Naperville, IL, Warrenville, IL & Plainfield, IL

Furnace InstallationHeating InstallationHVAC RepairFurnace ServiceAir Conditioning Service ∴ Warrenville, IL ∴ Plainfield, IL ∴ Naperville, 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 the process of repairing, replacing, or servicing your heating and cooling system.

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Furnace Service

Air Conditioning Service

HVAC Repair

Furnace Installation

Heating Installation

Warrenville, IL

Plainfield, IL

Naperville, IL