HVAC reviews in Naperville, Illinois

These guys are amazing!! We would highly recommend Four Suns to anyone looking for a great HVAC company. Jason installed our new Nest thermostat and took the time to go over all the features and programming of the new device. He was on time and extremely professional.

Honest and knowledgeable company. Joey came out and fixed our AC unit. Thank you for the great service. Highly recommended Four Suns

Four Sons is a reliable company who is quick to respond to our needs. Bryan did a great job with our AC install. He was professional, timely and polite. I highly recommend

I use Four Suns for my home and business HVAC, and they are always courteous, responsive, professional and their pricing is fair. I recently had to have my entire AC/Furnace system replaced (it was 30 years old) and they helped me review my options, make the best choices, went the extra mile during installation and helped me register my new unit for Warranty Coverage before they left that day. I highly recommend them!

Four Suns installed my furnace several years ago and have serviced it ever since. They are prompt. easy to schedule with, do a professional job and explain all my options. Their prices are reasonable and their techs are friendly. I highly recommend them for all HVAC needs.

I have used Four Suns Heating and Cooling for over 8 years now. They installed a new furnace here 8 years ago, my new AC unit last October., and a new water heater in January. A family run business, you'll deal with the same guys every time. It's nice to have familiar faces who know your house, and remember the history of any repairs or installations. They are extremely responsive when there are any issues. When something does go wrong, once it is fixed it is fixed. They are reliable and I have never had to call them back once they've repaired something because it wasn't done right. They are courteous, friendly, and will never try to sell you into anything you don't need. When you do need a replacement, they recommend reliable and cost effective equipment that will last. All this has kept me a customer since 2009 and I would highly recommend them.

Honest, reliable and fair with costing! Jason has been a pleasure to work with. He has always serviced our dual zone A/C's and furnaces and just recently installed brand new equipment for us. Jason and his crew are friendly and respectable. They get their job done in a timely manner and it's done with precision and perfection! I highly recommend. Their pricing is competitive and very fair, they show up on time and you can always count on them to be there when you have any issues. I highly recommend! It's not easy to find a company with great service and great pricing these days, so don't think twice about using Four Suns!

I recently moved to the area and used Four Suns for an HVAC tune-up and preventative maintenance. As a new homeowner, I appreciated how knowledgeable Jason was, he showed me how to use the dampers and fresh air system. He also performed a general check-up and acid cleaned the A/C coils, the unit is running even better now for the summer. Highly recommended Four Suns for your HVAC needs.

Absolutely recommend Four Suns! It's family owned, and they are fair and honest. A friend recommended them to us. We had our heating and A/C replaced by them a few years ago and they did an excellent job. We continue to have them come out and service our units. They're always responsive and never trying to sell us anything we don't need.

Love these guys the owner went out of his way to help me and my family during a big heat wave at our old home. He was able to get us a reasonable estimate over the phone prior to an on-site consultation. This allowed me to at least know what I was getting into. After he did his on-site consultation the estimate changed minimally and our replacement air conditioning that was the correct size for our home unlike the original installed was installed within 5 days of the initial call!! This meant a lot to me as a consumer with four young children and a wife that stays home without air conditioning during the heat wave. We've since moved from that home to a new home and we have a brand new air conditioner and furnace installed less than a year old and their team still provides outstanding service and helping us maintain the units for the winter and the summer. I've recommended Four Suns to several work colleagues friends and family everybody that has worked with them has had the same results high quality reasonable pricing phenomenal service.

Great family owned business. I’ve tried some of the larger companies but just don’t trust them. I trust Four Suns and have been very happy with the work they have done on our heating and AC needs.

We've used Four Suns several times for our heating/ac repairs and they've always been honest, professional and priced fairly. We are always happy with their services. Jason always tries to make sure I understand our needs and solutions and gives us several options for what we need. I'll continue to use Four Suns and recommend them to our friends and family!

Four Suns Heating & Cooling has been my first choice for several years. They initially replaced the air conditioner via an insurance policy. I appreciate the professionalism and honesty. When it was time to replace my heating system, I got prices from other Companies, but Four Suns, was both a good value and they did not high pressure me. A shout out to Rich for a recent repair. He took the time to go over the warranty and remind me of the features that provide 100% coverage over the next 10 years.

Highly recommend. My neighbor recommended them to me. I emailed Sunday night and they were out Monday morning. Joey was extremely informative and professional. Thanks to Jason for making it all work for me. Very pleased with the timing, service and very reasonable price.

New home owners, I contacted Four Suns as they had previously serviced the system in my new home, they were very knowledgeable and professional when talking with them about my system. They booked me in for a service and even fitted me in a day earlier than expected.
John was amazing, he listened to my questions helped explain everything about the system and advised on things to look for. Knowing now that we are all good for the winter ❄️ makes us happy as new home owners.
Definitely will use again and for our AC check up in spring. 100% recommended 👍

I was away on vacation and my son happened to come home early. He walked in the door and the house was at 89°!! I sent them a message at 11pm and received a reply first thing in the morning. Jason arrived before 10 am, quickly diagnosed the problem and was back running. He also said the fan motor “may” fail depending on how long there was power to it without running. He just said to keep an eye on it. Any other company may have just said to replace the motor and jacked the price. Quick, professional and honest. Highly recommend. Thank you!

Excellent Service!! Our Furnace went out and Four Sons was contacted and very helpful right from the start. It was such a relief to be contacted by Jason and he quickly gathered the information, confirmed the part needed, ordered the part and was very friendly and courteous the whole time. It was very reassuring, especially after a few bad interactions with previous heating company during the day trying to find someone to fix our furnace.

When the part arrived, Rich came out and was very nice, welcoming and respectful and more importantly knowledgeable. He took his time and explained the situation installed the part and confirmed everything was working as it should.

I can’t explain how nice it was from the start working with Four Sons, compared with other companies.

We will definitely be working with Four Son Heating & Cooling to continue to service our home and keeping us comfortable.

Thank you, we are truly grateful for the response time, continued communication on the part and excellent service installing and bringing heat back into the home.

Great experience! I had a problem with my furnace and John came and very quick and professionally find that the control board is not working properly. John replaced the control board, checked all system and I'm very happy that Four Sons Heating & Cooling resolved my furnace problem very fast. John was friendly, professional and answered to all my questions regarding fixing and replacing the furnace and the whole system.
Thank you very much!

This company deserves an award for doing excellent work and being so honest. After having another AC company tell me I needed a new compressor for my AC unit and leaving my family without AC during a hot summer day, I was referred by another neighbor to call Four Suns.They came out and found that the previous AC company was wrong on their diagnosis. Four Suns replaced the correct part on my AC unit and had my house with AC in a matter of a couple hours. Thank God for their honesty and good nature professionalism. I will now use them for all my future fall and spring tune ups. Four Suns deserves recognition for being a great heating and air conditioning company! Just wanted to update on how amazing Four Suns still is! John Paul, our service tech, always goes above and beyond! Pervious companies were never as thorough as JP or as professional and courteous as he had been! The owners are amazing too, always willing to help or answer a question that may not need a service call out. I highly recommend Four Suns!

Four Suns Heating and Cooling is indeed a rare find! My heater stopped working on Sunday evening
In the midst of one of the coldest nights we had in a while. I contacted them at a time of the day when you generally don’t expect a call back.. But, Jason punctuality, professionalism and competencies are definitely second to none. Clearly they see their clients as long term business partners and threat them as such! Very impressed! I wholeheartedly recommend this company!

Four Suns Heating and Cooling is a rare find! They are honest, reliable, timely and priced competitively. Jason/Rick/Joey professionally installed our new furnace within 24 hours of me contacting and they even left my furnace room cleaner then when they got there. Also, Four Suns’ extended 10 year labor warranty with service agreement was the deciding factor…. you get an extended labor warranty just for using them to do your annual maintenance, that’s a no brainer. I would highly recommend them.