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Thiele Heating & Air Conditioning
We have emergency service technicians available any time day or night, 365 days a year. When you call Thiele after hours for an emergency repair, you talk to the owner, not to a computer system. Whether it's your gas, oil, or electric furnace, your air conditioner, heat pump, humidier or purier, or service and repair need, for residential or commercial projects, Thiele is the heating and air conditioning company to call to get the job done right.

Thiele Heating & Air Conditioning has been keeping Hoosiers comfortable in their homes and businesses for 137 years. Our continuously-trained technicians have an average of 20+ years experience installing, repairing, and maintaining all types of heating and cooling equipment. Your team did a fantastic job installing our new furnace and A/C System as well as xing our ductwork system, originally installed by others.
Services
Thiele Heating & Air Conditioning serves all of central Indiana. We have a team of trained technicians working in coordination with our skilled support staff who make sure that our team is prepared to get your job done to your satisfaction. Thiele was founded in 1883 by Wilhelm Oliver Thiele as a manufacturer of the L.C. Thiele furnace.
Living in Indianapolis means you need a reliable heating system to get you through the cold winter months. Perhaps even more importantly, you require a trustworthy heating repair company to keep that heater going! Whether you have a gas, oil, or electric, furnace, look no further than Thiele Heating & Air Conditioning.
As the weather grows cooler across central Indiana, it's time to start thinking about your furnace again. Without proper maintenance, furnaces are prone to issues as temperatures drop. Too often, furnaces break down on the coldest days of the year, creating an unlivable home environment. Aside from struggling to keep your family warm, a broken furnace can also leak natural gas in some cases.
Replacing your old furnace, rather than repairing it, can be a more cost-effective solution in some cases. Each situation is different, but depending on the age of your current furnace and the issues surrounding it, you might find yourself ultimately saving money by installing a new furnace. Today, the highest quality furnace systems operate with a 98% efficiency, whereas 10 years ago they performed at 78%.
Just like with any other appliance, home heating systems need routine maintenance to operate as they should. Your home's heating system can significantly benefit from an annual Indianapolis furnace tune up. Regular performance checks can detect unseen problems, prevent numerous repairs, and prolong the life of your system.
Reviews (21)
Robert Vadas
Robert Vadas
Dec 22, 2021
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The service was great & fast. Service person as very nice and explained the issue with our furnace. He did not try to sell us any unnecessary parts. Very ethical and trustworthy service. Cost was appropriate for service rendered. I would use them again for service. Also on time and called before arrival.
Service: Heating maintenance
Gloria Storey
Gloria Storey
Dec 03, 2021
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Always prompt and courteous. Installed heating and AC systems several years ago and have serviced/maintained every year since.
Service: Heating maintenance
Rn Deaf
Rn Deaf
Nov 16, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
We've used this service for almost 30 years. Great family-owned company with great service and sales people. Highly recommend!
Services: HVAC maintenance, Installation, Heating system installation, Thermostat installation, AC maintenance
Andrew DeRyckere
Andrew DeRyckere
Nov 14, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
We're on their maintenance plan. We don't have issues because their techs actually take the time to do quality inspections when they're here. They only recommend services if it's needed. Don't hesitate to call Theile!
Services: AC installation, AC maintenance, Heating maintenance
John White
John White
Nov 07, 2021
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Eric performed a thorough diagnostic check of my furnace (work order #11237). He phoned-ahead before arriving and was efficient and courteous.
Services: Heating system repair, Heating maintenance
Bill G.
Bill G.
Oct 27, 2021
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Positive: Quality, Value
I had Thiele service my furnace for the year. The tech was very prompt, friendly, knowledgeable. Fast and thorough.
Service: HVAC maintenance
Ti Sing
Ti Sing
Oct 26, 2021
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Positive: Professionalism, Responsiveness
Thiele does a good job. They came out quickly as my furnace under warranty wouldn’t start up. Eric came out and got it fixed right away. He’s been there for years and seems to like his employer. All good.
Service: Heating system repair
Jim Liston
Jim Liston
Oct 18, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Thiele is a great company for all your AC/Heating needs. They are always professional and their technicians are polite, thorough and respect being in your home (they always put on plastic coverings on their shoes). Sounds common sense but many companies don't do it.
Service: AC maintenance
Emily E.
Emily E.
Sep 30, 2021
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I called Thiele Heating and air conditioning to come out and see why my heat was not working. They had not only 1, but 2 MEN come out to tell me I had NO furnace. They gave me quote for $11,000.00 for a heat pump and a new furnace installation and then added a 20% discount and said I could finance for 72 months no interest. I wanted to get another estimate so I called Rick SWEETS heating and cooling to come out and with in ONE minute of him being in my house, he told me I HAVE A FURNACE!!! All he did was fix the wiring in my panel and BOOM I had heat immediately! Me being a single woman in a new
Daniel Wagner
Daniel Wagner
Aug 07, 2021
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We recently built a new house in Carmel. Our builder used another HVAC vendor which was obviously fine. However, when it came time for periodic service we called on Thiele. We had Thiele install an entire system in a previous house and then we had them do the maintenance program as well. We have always been very pleased with Thiele. Our tech today was very professional, very personable, and very capable. We signed on for the annual maintenance program and I'm sure we will be very pleased with their semi-annual maintenance.
Gina Marchino
Gina Marchino
Aug 03, 2021
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The technician was super-friendly and fast. I had another local company come check out the job and they were trying to sell me a new unit and duct-cleaning. Thiele quickly diagnosed the a/c as just needing a new capacitator, which are kept on the service truck. I appreciate their honestly and not trying to take advantage of and rip off a single lady.
Barb B.
Barb B.
Nov 10, 2020
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Thiele came to my rescue today! Technician Rob arrived at the designated time, wearing his mask this afternoon. This kindness makes this Senior Citizen feel safe!
After 28 years, my flex ductwork was done. Thiele replaced my ductwork at a substantially lower cost compared to a cleaning. I had a cleaning quote of $500 from another company. Thank you Thiele Heating and Air Conditioning for helping out like an old friend.
Nathan G.
Nathan G.
Jul 27, 2020
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You are phenomenal! I just spent 9600.00 on great new unit . They undersold Williams Comfort and air by 3 thousand dollars. They got to us within 2 days of operation and added two years of FREE service. The new unit is an upgrade of the old one . It's 98% efficient and multi stage it's so quiet. The cool new thermostat is WiFi compatible and controls humidity and dehumidification as well. If you want a quick turnaround on a quality unit at an affordable price give them .
Brandon F.
Brandon F.
Jun 16, 2019
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I got a new system back in August 2018, I went to turn on my a/c 2 weeks before memorial day weekend 2019 and I did not have cold air. I called the office and was told they would be out in a week (on a Friday.) I had to call to verify to make sure that they were in fact coming because it was after 5pm and they still had not been here, with no communication. They came and filled it with freon and put dye in it so they could see where it was leaking. I was told they would call to schedule a time to come back. I had to call them and they came out that Friday and said it was leaking from a spot that
Mindy B.
Mindy B.
Mar 27, 2019
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Thiele provided the best costumer service we have seen in years. Our heat went out on a cold winter morning and Thiele Technicians came to service our unit by the end of that business day. Unfortunately our 16year old furnace was cracked and leaking CO2 into our air. Three kind service men installed a new furnace the next day! We are so grateful for their help. I will always recommend Thiele! They are kind, professional, and honest.
Brandon S.
Brandon S.
May 30, 2018
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Dispatch is extremely rude and unorganized. Technician misdiagnosed repairs and complained about the company nonstop and their install department. Frustrating to schedule with.
Michelle D.
Michelle D.
May 26, 2018
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Stop saying you offer 24 hour service. After two phone calls and four hours of waiting we gave up and called someone else. We stressed the importance as my father is 70 with COPD. TWICE the person said she was sending out a call to all the techs and someone would call us shortly. When they say "24 hour service" they mean someone answers the phone but they don't really come out. They just waste your time by having you wait for nothing
Eddie G.
Eddie G.
Jul 06, 2017
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Michael was my technician and what a great example of professionalism and humility. He was cordial, well mannered, jovial and very detailed in his assessment of my a/c. I was able to follow him all around and when he saw the problem his initial assessment was correct. But instead of leaving right away, he continued his assessment that included my outside unit, my air filter and the heating element.

I recommend without reservation Michael of Thiele heating and air
M. C.
M. C.
May 28, 2015
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Terrible service. Took off work for an entire day to wait around for a representative to come to the house to work on the air conditioner. Never showed up. I called the customer service representative and was treated very poorly. The representative was rude and condescending. Would not recommend to anyone that is looking for good customer service and punctuality
Jeremy M.
Jeremy M.
May 23, 2014
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I had Thiele out last year to replace my air conditioner and evaporator coil. I got estimates from three different companies (I work for an industrial contractor, so I'm pretty used to getting bids, etc.) and, while the numbers were all pretty close, Thiele came in as the lowest. Their website claims they're ranked highly by Angie's List, so I figured I'd give them a shot. Their guys came out and did the work in an afternoon - they removed the old unit and coil, installed the new items, ran new refrigerant lines, installed a new humidifier, and installed a new thermostat. The
E. S.
E. S.
May 30, 2012
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Called to check the price on an A/C tune-up and was told it would cost $89.95. Tech came out and did the work while my wife was at home and charged $85 extra for 30 minutes of labor for a total bill of $175. When I called to dispute the overcharge I was told I had to speak with the owner, John Traub, about any price disputes. I left three messages for John over a week's period of time and was never called back. I would not recommend using this company to anyone.