At Harriman Heating & Air Conditioning, we know furnaces—gas and oil. Our heating, ventilation, and air conditioning (HVAC) team of professionals has been installing, repairing, and maintaining gas and oil furnaces here in the Farmington Hills area since 1996.

Our professionals always maintain the highest standards. Along with our prompt and courteous service, you will always be satisfied with a job well done.

Furnace Installation

At some point, all furnaces need replacing, even with consistent professional maintenance. Furnaces typically can last 15 to 20 years with regular maintenance. If you notice your furnace is no longer working efficiently or if it stops working all together, it is time to replace it.

When that time occurs, call our knowledgeable experts. We can be in and out with little inconvenience to you and your lifestyle. We make it our goal to work around your schedule, and we always leave your home in the same, or better, condition than we found it.

If you are currently looking for a new furnace, call and speak with someone on our team. We install all makes and models of furnaces, so we will be sure to find the perfect fit for your home, needs, and budget.

How Much Money Can a New Furnace Save You?

Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's AFUE value and compare it to a newer, more efficient system. You can even customize it to better match your home's system for a more accurate calculation.

AFUE Energy Savings Calculator

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Customize to Your Home

Adjust these settings for a more accurate calculation:




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Historical Comparison

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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

** Data for Canadian cities from nrcan.gc.ca
*** Data from weatherdatadepot.com

Furnace Repair

When your furnace begins to make a strange noise or if it only blows cool air, it is time to call in our HVAC professionals. Our highly trained team members will promptly come out to your Michigan home to quickly diagnose and repair the issue.

Since we service and install a wide variety of furnace makes and models, we will get right to work, since we know precisely what needs to be done. We do work with a wide range of furnaces, so it is likely we will have your needed part in stock and handy, and you will not need to wait for us to order it.

When your furnace has a problem, we are always here for you when you need us. We offer 24/7 emergency service. Your satisfaction and comfort are at the top of our priority list.

Furnace Maintenance

Proper maintenance can extend the life span of your gas or oil furnace and keep it in good working order along the way, saving you money. That is why we offer preventative maintenance programs for your heating and cooling system.

Our expert team will schedule a preventative maintenance program customized just for you and your needs. With regular maintenance, you can expect an inspection and cleaning of your furnace and its components. This helps you achieve the energy savings your efficient furnace can offer, saving you money year after year.

Regular maintenance is also a good investment. During our maintenance visits to your home, our professionals can spot a needed repair before it turns into unexpected and costly trouble for you. We will head it off, keeping your life running smoothly.

Call Us for Your Furnace Needs

At Harriman Heating & Air Conditioning, we have been working with the Farmington Hills, MI area’s furnaces since 1996. There is not too much we do not know about furnaces. Our experience and knowledge, coupled with our professionalism and courtesy, make us the perfect team for your furnace needs. Call us today at 734-271-6200 or request service online to talk furnaces.

Gas Furnace Installation in Canton, MI 48188

“Overall great experience with the installers.”
- Caryn W.

Gas Furnace Repair in Saint Clair Shores, MI 48082

“Highly recommend Harriman! Ron took the time to explain the repairs. The employees kept in touch with me, updating me on what they were doing. Fair price on repair. Overall experience was awesome. Great company and employees. Good, honest people.”

- Patricia H.

Gas Furnace Maintenance in Belleville, MI 48111

“Friendly, thorough, informative.”

- John H.

Gas Furnace Maintenance in Madison Heights, MI 48071

“They cleaned my furnace and in all the years no one ever cleaned it better. I give them an A plus.”

- Kathleen B.

Gas Furnace Maintenance in Bloomfield Hills, MI 48304

“Mr. Mayes was so efficient and helpful. He has a cheerful, supportive personality. I think he does a great job.”

- onjel b.

Gas Furnace Maintenance in Farmington Hills, MI 48336

“Great service!”

- Michael M.

Gas Furnace Replacement in Troy, MI 48098

“Josh and Jon were a great team. They were polite, friendly and professional. Josh was very good at explaining things to Jon and me.
The part that needed fixing plus the age of the furnace (1990) were discussed. Josh explained the choices for a new furnace to me. I decided that replacement was what I wanted. Both men were engaging and made me feel safe and respected.”

- Marcia T.

Gas Furnace Repair in Livonia, MI 48154

“Josh was fast, courteous and professional. He had no problem explaining the issue in detail and providing a solution that got our heat back on in the middle of winter. A+ all around!”

- Tony D.

Gas Furnace Maintenance in Plymouth, MI 48170

“We have the Gold Maintenace with Harriman. Adam was out to clean and check our furnace. He was very professional and went over everything about our furnace. I highly recommend Harriman Heating & Air Conditioning.”

- Jody R.

Gas Furnace Replacement in Redford, MI 48239

“Chance and Avery came to do a yearly maintenance visit on my furnace, and they showed me some potentially dangerous metal wear in my heat exchange. After doing further testing, the carbon monoxide levels near the furnace were above the safe limit indicating a leak, which can be life-threatening. My furnace was already well past its life expectancy, so I decided to get the process going for a new furnace. Chance called his supervisor, Jon H., who came over the same day. Jon walked me through everything that was needed for a new system, got me set up for financing, and set up installation of a temporary replacement furnace until my new unit was ready so I would have heat without the risk of carbon monoxide poisoning. The temp unit was installed just over an hour later. This all happened on a Friday afternoon in the snow, and it was awesome that all of this got done so quickly to make sure I was safe and warm! I have been using Harriman for years, and I have always been really happy with how great the technicians are, both for their friendly attitude, and their great service. I was happy to buy my new equipment through them! I even decided to replace my AC at the same time, since I knew that unit was on it's last legs. So, here is a big THANK YOU to Jon, Chance, and Avery, for all of their help, along with Jesse and Jeff for coming over late on Friday to install my temp unit. You guys are fantastic!!”

- Sandra Z.

Need Furnace Service?

Contact the experts at Harriman Heating.

Call us at 734-271-6200!