Get a 2-Year Warranty on All Installations

Air conditioner technician alton il

Full-Service and Licensed HVAC

At Galaxy Heating & Air LLC, we take great care to work and communicate with our customers in a professional manner. Whether you need AC installation, dehumidifier repair, or air quality services, we deliver the same level of service, safety, and quality.

We Are a Trustworthy HVAC Company in Alton, IL

When you need AC repair or HVAC repair, look no further than our reliable HVAC company. With over 10 years of experience, you can trust us to deliver the services you’re looking for. At Galaxy Heating & Air LLC, we enjoy providing a service to help people.

Our HVAC company in Alton, IL, works with the following brands:

  • Comfort Air
  • Coleman
  • Fujitsu
  • & More

We now offer a 10 year warranty on products

Our equipment is rated #1 on Forbes list

 Our Services

We believe that your home should be a place you can feel comfortable, warm, and safe. That’s why we work hard to provide you with dependable heating and air conditioning services. With over 10 years of experience as an HVAC company in Alton, IL, we’ve got the skills and expertise necessary to handle any job.

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HVAC Installations

When you’re ready to get your HVAC up and running, you want to know that the job will be done right—and done fast. And of course you want it done at a fair price. That’s where Galaxy Heating & Air LLC comes in.

HVAC Installations

Our experts can install:

  • Heat pumps
  • Air handlers
  • Gas furnaces
  • And more!
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HVAC Repairs

If your home’s heating or air conditioning system isn’t working like it should, we can help. As a locally owned business, we know the importance of keeping your home or establishment comfortable.

HVAC Repairs

When you request our HVAC repair services, our experts will ensure that your system runs properly and safely. We can update your:

  • Boiler
  • Furnace
  • Air conditioner
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 Air Quality

We know that your home or business relies on your air quality systems, and that’s why we take pride in providing the highest-quality maintenance services.

 Air Quality

You can hire us for:

  • Humidifier installation services
  • Dehumidifier installation services
  • HVAC filter replacement services
  • And more!
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Ductless Mini-Split Installation Services

We know that ductless mini-split installation is challenging for homeowners and business owners. That’s why we offer a range of services to make your mini-split installation as simple and hassle-free as possible.

Ductless Mini-Split Installation Services

You can trust us for the following services:

  • HVAC repair services
  • HVAC installation services
  • Dehumidifier services
  • And more!

Get a Free Estimate

When you work with us, you can request a free estimate on any of our residential and commercial HVAC services. Call us now to get started!

Get in Touch

Request an Appointment


Our friendly team is here to help


Questions or queries? Get in touch!

(618) 631-0451


Contact Us

Reach Out to Our Pros

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    What Our Clients Are Saying


    Angelika Hughes


    The only reason I didn’t use this business is that we had set a cap on how much we could spend on the entire renovation of the house. Justin made a good impression from the start and understanding what we were dealing with took the initiative and asked if I would be alright with him contacting 2 other contractors so we could meet at the house and get the estimates done in one day
    I really appreciated that and he explained it all to me. I could tell that he knew what he was doing and had experience in the business. He was on time and so were the other two!
    Unfortunately the renovation everything included ended up too much for us in addition to the purchase price and we didn’t buy the house! I can recommend Justin and his business – great quality!



    diana owens


    Came out same day right away! Completely fair and lower than expected pricing and very professional. One of the best maintenance experiences I have ever had. I will be recommending them and using them in the future with all my AC needs!



    Zack Funk


    Justin is great to work with. Highly recommend Galaxy!



    Stephen Stewart


    Justin was the absolute best!! He came through and delivered everything he promised at a great price and super nice service. Gave different options and pricing so the customer has all the information. Big A+ and fixed the same day.



    Nett Mccline


    I really love this place of business. They came out to my home Twice and did a great job. Awesome business.I will recommend them to everyone I could.



    Tommy Silveus


    I cannot say enough good things about Justin. I have been thru multiple hvac companies over the last 10 years. He is knowledgeable, finds the issues quickly, and very reasonable prices.



    john standefer


    Justin recently installed a mini split in my detached garage. He does excellent work and is very neat and detailed. Not to mention he is a very polite person. Highly recommend!



    David Kessler


    I want to thank Galaxy Heating and Air so much for the timely response and willingness to help me save some money to get my renters back to comfortable temperature in there home.
    I absolutely refer Galaxy to all my friends and family. I was very pleased with the installation!



    Barb Hayes


    Justin gave me excellent service explained everything and gave me heat



    Marsha Anderson


    Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
    Justin arrived on time and assessed the problem and gave me his estimate and explained exactly what he would do.
    Justin did excellent work and solved the open ductwork



    Larry Huyck


    ‘m so happy I called I have heat and and ac. I was only concerned about the ac Justin went ahead and fixed both he is my go to I will always call Galaxy for my needs 💯



    Jordan Bost


    Justin was very quick and as professional as can be. Very extensive knowledge in explaining the repairs, etc. 10/10 would recommend!!


    Areas We Serve

    We provide reliable services to homeowners and business owners in Alton, IL, and the surrounding areas.