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4-Seasons Motto Is: To service our customers as we would want to be serviced ourselves

General Info
4 Seasons has been dedicated to servicing our customer’s furnace repair, air conditioning repair, and furnace and air conditioning installation needs for twenty-seven years and running. We are a licensed HVAC heating contractor in the Ann Arbor and Jackson areas. Furnace repair, heat pump service, and boiler repair and installation are services we provide. We are also a licensed refrigeration contractor as well as a refrigeration repair company. Heating systems and energy management systems are part of the scope of our work. Walk-In coolers and walk-in freezers as well as reach-ins and display cases are serviced by our installation and repair crews. We service Ann Arbor, Jackson, Chelsea, Manchester, Saline, Napoleon, Dexter, Ypsilanti, Brighton, Brooklyn, Grass Lake, Stockbridge, Gregory, Washtenaw, West Wayne, South Livingston, and Jackson counties. Furnace and central air conditioning repair,furnace and central air conditioning installation, and refrigeration are performed by qualified technicians that are committed to looking out for your best interests and we recommend you consider the advantages of comfort added components to your central heating and air conditioning systems such as humidifiers and high efficiency filters. These components can add a great deal of comfort and efficiency to your existing heating and air conditioning equipment. Check us out at Google Places for periodic furnace repair, air conditioning repair and furnace installation specials. We are listed in many key-word searches for Jackson, Ann Arbor, and Chelsea as well as many other locations. If your residential or commercial furnace need some attention, than call us for some straight forward answers; our contact page has information on how to get in touch with us. 4 Seasons Motto Is: To service our customers as we would want to be serviced ourselves. Thank you very much for visiting us here at Four Seasons and have a great day, Sincerely, Randy Koch Owner Four Seasons
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Phone: (734) 757-4482

aprilaire, honeywell, ruud
Payment method
master card, check, paypal, visa
We have performed HVAC services for twenty-seven years in the greater Ann Arbor, Jackson County, areas and perform commercial HVAC services for real estate management companies, small business HVAC equipment, and commercial furnaces and air conditioner


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Rebecca W.



Service is exceptional!!! Thanks Steve and Dan for getting the job done so quickly. The guys diagnosed our problem and had the air conditioning going within an hour.

Rebecca R.



We couldn't be more pleased with 4 Seasons. We had our furnace, humidifier, AC, and water heater replaced at a very fair price. Everything has worked perfectly. I was very comfortable with the workers being in my house - they were very professional and courteous. We would recommend and have recommended to our neighbors.

Gunner J.



Listed under commercial refrigeration repair, but doesn't accept new commercial customers. Listing should be updated, waste of time.

Susan R.



The owner Randy returned my call immediately. We needed a new A/C unit and Randy gave us an estimate the same day. The two guys Steve & Cory that installed our A/C unit the next day were awesome. They were professional, polite and I would highly recommend this company.

Mike L.



I'll definitely refer to 4 Seasons first if I need HVAC work in the future. My furnace broke this winter, on one of the colder mornings of this coldest winter on record. Randy and team were able to come that afternoon to install a replacement. They even made a special trip to their supplier for it. Of course, I researched the furnace brand first, and customer satisfaction was as good or better than many other better known brands.

Randy and team were efficient, friendly, neat, and on schedule. The price was quite competitive with some of the other HVAC services I called that day. Good service and good price.




Randy installed a new boiler and water heater for me in a very unpleasant work environment and under very trying conditions... and not only did he do a fine job while dealing with numerous unforeseeable difficulties... but he remained good-humored and pleasant the whole time! I will be hiring him for the next phase of the project, for sure-- and highly recommend him to anyone else.



We called Randy and he was at ...

We called Randy and he was at our house within 20 minutes! How often does that happen with a service person. While we may have caught him at just the right time, he was quick, efficient and friendly. And we very pleasantly surprised with the bill--extremely reasonable. I would highly recommend Randy. Thanks Randy, we are finally warm again!

Elizabeth H.


This is an excellent business....

This is an excellent business. Randy responded to my initial message promptly, gave me good advice by phone, and (when the furnace turned out to be in need of work) came out when he said he would. He did a fine job fixing our system, but even more important, he explained what he was doing and walked us through the process so that we were confident that he was diagnosing and treating the problem accurately and thoroughly. He was pleasant, professional, and altogether very nice to deal with. I would recommend him highly to anyone who needs this kind of service (we're going to have him replace our AC unit next). Five stars!

Susan C.


Amazed!! During the hottest we...

Amazed!! During the hottest weeks of summer our A/C decided to break down. I called a friend with "some" knowledge of home maintenance and repairs to take a look. I was told the unit was total junk and would need to be replaced. I decided to call a professional and found 4Seasons. The very next day Randy was at the door (on time!), tools in hand and ready to work! Within 30 minutes my A/C was diagnosed, and within another 30 it was up and running ICE COLD air again! For a minimal fee my entire family was no longer sweltering in the heat. My friend was willing to replace the entire unit for me, I'm SO very glad I didn't listen! I saved THOUSANDS going with 4Seasons! Go with the Pro's. Call Randy Koch!!!



Randy is honest and knowledgab...

Randy is honest and knowledgable! I would recommend him to anyone for their heating and cooling needs! :)



I would recommend Four Seasons...

I would recommend Four Seasons to anyone in need of air conditioning repair. Randy is pleasant, professional and knows his stuff. He had my air conditioning working and my house cooling off in less than an hour and had helped me to understand the maintenance I could do for myself. The cost was VERY reasonable, as well. I'm very thankful for his help and would not hesitate to call again if I am in need of more repair work.

I couldn't have asked for more!



Last week I called Four Season...

Last week I called Four Seasons for furnace repair and when they came out I was really impressed with their genuine care for the situation we were in. They took care of our problem at a fair price and then offered suggestions on how we could get longer life out of our air conditioning unit as well. Thanks a million!



My furnace was leaking through...

My furnace was leaking through my kitchen ceiling. It took us a good deal of time to figure out where it was coming from. When we found out it was the furnace 4 Seasons came right out and replaced two hoses to fix the problem. They showed us the parts that were bad and really made us feel like we were part of the repair process. Thank you for taking the time to educate us on how a furnace works.



We have had many service tech�...

We have had many service tech’s repair our local businesses boiler and heating and air conditioning systems and 4 Seasons has now had our business for fifteen years. I look forward to many more!



I would definitely use this co...

I would definitely use this company again anytime I needed a heating contractor. The last company that came for furnace repair insisted we needed a new furnace. Randy came right away (drove one hour) and then replaced my blower motor. The total bill was $235.00, which was about fifteen hundred dollars cheaper, then the quote I received for a new furnace. Keep up the good work.



I had a garage with an upstair...

I had a garage with an upstairs living area that needed a furnace system installed. Four Seasons did a great job at a very good price and we were very impressed with the way the installation turned out. We would definitely recommend them as a heating and cooling company!!!


Phone: (734) 216-4312

Address: Grass Lake, MI 49240