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Harriman Heating & Air Conditioning
42 service profiles
Hvac Contractor businesses and related repair services are available around Farmington Hills, MI.
5.0Rating
5Reviews
1Photos
1Services
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Harriman Heating & Air Conditioning is listed as a Hvac Contractor serving Farmington Hills, Michigan. Contact this business for reliable local service, appointment requests, directions, reviews, photos, and profile details.
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5 reviews
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Austin Howard
Feb 6, 2026
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5.0
A true professional. To many 5 star installs to count over the years. My go to business for all HVAC needs. The installer Stephen is truly great, a real hard worker. 7+ installs, every time goes above and beyond in customer satisfaction as well as the best install. Thank you for staying consistent over the years!
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Cathy Johnson
Jan 5, 2026
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5 stars for Harriman Heating & Cooling. Jon Harriman along with Aaron, Zach & Annette and perhaps a couple other guys I forgot the names of... who all gave us excellent service. The guys came out same day our furnace stopped working and tried all day to fix and save our old furnace but to no avail and so we ended up buying a brand new high efficiency Trane furnace just before the holidays. They installed a temporary furnace to make it through the very cold couple days until the new one could be installed. Did a fantastic job, were very friendly and courteous, on time and cleaned up afterwards. Very professional and I even got a thank you note... 5 stars for Harriman Heating & Cooling. Jon Harriman along with Aaron, Zach & Annette and perhaps a couple other guys I forgot the names of... who all gave us excellent service. The guys came out same day our furnace stopped working and tried all day to fix and save our old furnace but to no avail and so we ended up buying a brand new high efficiency Trane furnace just before the holidays. They installed a temporary furnace to make it through the very cold couple days until the new one could be installed. Did a fantastic job, were very friendly and courteous, on time and cleaned up afterwards. Very professional and I even got a thank you note! Highly recommend them!
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Sarah Ferrington
Feb 13, 2026
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well, I’ve gotten to know the fellows at this heating spot pretty well over the past five years. I live in a studio apartment in Ypsilanti, but the house I live in was built in 1859 and literally radiators were invented about 1855 so my radiator was as old as this house is and every fall we would have to call them to help us jumpstart the radiator because it was at the highest peak in the house and so the water flow wouldn’t get up there unless we raised the temperature and had to fill the radiator and bleed it and what not,… The radiator was actually beautiful. It was about 14 coils wide and I’m 5 feet tall and it came up to my chest. I neve... well, I’ve gotten to know the fellows at this heating spot pretty well over the past five years. I live in a studio apartment in Ypsilanti, but the house I live in was built in 1859 and literally radiators were invented about 1855 so my radiator was as old as this house is and every fall we would have to call them to help us jumpstart the radiator because it was at the highest peak in the house and so the water flow wouldn’t get up there unless we raised the temperature and had to fill the radiator and bleed it and what not,… The radiator was actually beautiful. It was about 14 coils wide and I’m 5 feet tall and it came up to my chest. I never thought about how much it weighed. I never thought it would ever leave this apartment but one day-it was actually three weeks ago today it sprung a leak from the bottom and the leak was fast enough that if I didn’t constantly contain it, it would not only flood my floor, but would cause major damage to the apartment downstairs. The radiator was so close to the ground that all you could fit was a cookie sheet underneath so I had a cookie sheet and a towel and I would set my alarm every two hours and change out the towel. Put the towel on top of the hot radiator. Put a fresh (dry) towel down to soak up what was coming, my landlord called H’s The very next day and they were here that day later on to assess the damage and they said it was a fatal leak that it couldn’t be fixed. The tough part now was figuring out what to do because this is a house full of radiators and would they be able to find an old radiator someplace that would work or were we gonna have to go another route? I knew this apartment well enough that it didn’t need a radiator that big and powerful even though we’ve had one of the tougher winters in Michigan then we’ve had in years at least in southeastern Michigan… And it took them 10 days but found an old but pristine radiator, they even gave it a pretty paint job…but the real test was when they came in to remove this old radiator which we thought was maybe a couple hundred pounds, it was closer to 600 pounds and my landlord and I literally said a prayer around the corner when they were strapping this thing to the dolly, because also the strange bit of architectural trivia about my apartment Is that back in the day doorways only had to be big enough for an undertaker to get a pine box out through the door and so my door to my apartment was especially narrow. It was made just wide enough to get a body out the door you gotta remember this was 1859, and I have a very steep and narrow stairwell and at first, they weren’t sure how they were gonna get this thing down (and out) but they obviously got it out narrow end first, and I watched the owner and the great guy he had with him maneuver this beast of a radiator-she was beautiful, but she was a beast, and they literally almost got their hands crushed trying to get this thing down the stairwell, but they got it down without nicking even a scratch of paint or a piece of carpet anywhere in my apartment and trust me my apartment is really tiny the way it’s designed the main room has a lot of sharp curves and they had to get around all of these sharp curves and then around the sharp doorway to get down the steep death drop of a stairwell and they did it, and we were both incredibly impressed with the professionalism of how they handled the entire job from beginning to end. And like I said this wasn’t our first time dealing with them. We’ve been calling them when needed to deal with this radiator, and there were a couple times we had some failures in the system that had to be assessed by a professional and they were here before so they knew the house well and I remember telling my landlord call them and nobody else… That’s because I knew, I just knew they were the only ones who could do this job and I ended up being right.. And we’ll hire them again the next time something happens because with an old house stuff happens. But they are the best plus they’re nice guys, the $ was BEYOND fair. Thank you for all that you did.
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Chris Gibson
Jan 6, 2026
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We recently had a furnace replaced by Harriman Heating and were extremely pleased with the company but especially the people. Jon Harriman reviewed our current furnace and lead us through the choices we had between repairing the over 20+ year old system or replacing it with a more efficient new unit. He gave us straight answers and objective information so we could make the choice best for us. There was no “upselling” or oressure to buy, just facts. We decided to get a new unit and it was installed by Aaron who was very capable annd pleasant to deal with, he also answered all of the questions we had on the installation. Our installation was... We recently had a furnace replaced by Harriman Heating and were extremely pleased with the company but especially the people. Jon Harriman reviewed our current furnace and lead us through the choices we had between repairing the over 20+ year old system or replacing it with a more efficient new unit. He gave us straight answers and objective information so we could make the choice best for us. There was no “upselling” or oressure to buy, just facts. We decided to get a new unit and it was installed by Aaron who was very capable annd pleasant to deal with, he also answered all of the questions we had on the installation. Our installation was difficult due to the limited space but Aaron’s team completed the work and left the area spotless . We would highly recommend Harriman for any HVAC needs you have.
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Tash Sanchez
Jan 6, 2026
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I recently worked with Harriman Heating & Air Conditioning to replace my water heater, and the entire experience was exceptional from start to finish. Scheduling online was incredibly convenient, and I appreciated that the company proactively called to offer an earlier appointment. On the day of service, they sent a text with a live tracker and a photo of the technician, followed by a personal phone call—not an automated one—letting me know that John Gnass was on his way. John was professional, knowledgeable, and very thorough. He assessed my old water heater, which had a slow, yet progressive leak, and clearly explained my options for repla... I recently worked with Harriman Heating & Air Conditioning to replace my water heater, and the entire experience was exceptional from start to finish. Scheduling online was incredibly convenient, and I appreciated that the company proactively called to offer an earlier appointment. On the day of service, they sent a text with a live tracker and a photo of the technician, followed by a personal phone call—not an automated one—letting me know that John Gnass was on his way. John was professional, knowledgeable, and very thorough. He assessed my old water heater, which had a slow, yet progressive leak, and clearly explained my options for replacement. I fully expected to schedule a separate appointment for the installation, but John and the company were able to replace the unit the same day, which was a huge relief. What stood out most was John’s approach and attention to detail. He never pushed, took time to answer every question, and explained how to maintain the new water heater to extend its lifespan—something I really appreciated given the investment. Before leaving, he made sure the faucets at the furthest point in my condo were running smoothly with the new unit, walked me through the features, and checked once more if I had any additional questions. Likewise, John recommended that I get a carbon monoxide monitor installed closer to the water heater. John discovered in my old unit that the plastic fixtures were a little melted at the top indicating that exhaust was leaking from the unit. While I do have a CO monitor in my basement, it’s not close enough to the water heater to detect an exhaust leak that he mentioned, it’s more for major obvious CO/gas leaks. My consumers energy bill for gas on the other hand, has been abnormally higher than usual, and I am not exaggerating when I say that I’ve done everything to reduce that bill. While there are a myriad of things that can increase a gas bill, I’m going to take John up on his recommendation, get another CO monitor closer to the unit, and keep a closer eye on my consumers energy gas bill and enjoy the extra money saved now that the source has finally been found and I’m not casually breathing in carbon monoxide. While replacing a water heater is never a small expense, the quality of service, expertise, and attention to detail made it absolutely worth it. I’m extremely satisfied and highly recommend Harriman Heating & Air Conditioning, especially if you have the opportunity to work with John Gnass. I can’t thank you enough!
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