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Best heating and air conditioning pros near Sullivan, IN

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Top-Rated Heating and air conditioning pros in Sullivan - Updated Nov 2026

Avatar for Kingdom Air
Kingdom Air
5.0(
10
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Sullivan, IN and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Hats off to Kingdom Air!!! They called me to schedule a time to check my A/C before hot weather. Had an appointment today (5/19) between 1000 and 1200. Got a call it might be between 1400 and 1600 before they could get here because with the storm we had last night they had extra service calls. No problem, my A/C is working. At 1205 I had a knock on my door. Clay came in; spent approximately an hour and a half going over everything for/with me. Once again, hats off to Kingdom Air and CLAY!!"
Unit Replacement
Unit Replacement
Unit Replacement
Replaced Unit
Old Unit

+1

Response time2 days
21 neighbors recently requested a quote
Recommended by10%of homeowners
Avatar for Amped Up Home Solutions
Amped Up Home Solutions
5.0(
5
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - RepairThermostat - Install or Replace

Serving Sullivan, IN and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

My name is Carson Thrasher. I’ve grown up around the Sullivan area and this is home. I have been around the electrical field for since 2018 when I graduated college. I’ve worked as an electrical engineer for a few years and started my business in 2023. I quit my job in November of ‘25 and am working the business full time. I have five start ratings on Google and strive to maintain a good line of communication with my clients. Honesty and integrity are key in my world and I ensure that as a customer of Amped Up Home Solutions you will receive just that.

Daniel Wallace
New to Angi
Thermostat - Install or Replace

Serving Sullivan, IN and surrounding areas

Approved

I’m a hardworking person who doesn’t like to leave projects half finished or looking sloppy, I can be a bit of a perfectionist. I’ve always fixed and built almost everything I needed myself and I take pride in being self sufficient. I’ve been an electrician for a year and half now and before that I was fabricating aerators for private residences. I have a wife and two children, so I can handle the chaos of a whole house remodel even if you decide to alter any details halfway through.

Avatar for Abbott HVAC
Abbott HVAC
4.7(
32
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Sullivan, IN and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"I was very impressed with Rich throughout the entire process of working with him. He gave us the best price for the same appliances the other companies were going to install. Rich was the only one who actively followed up and answered all of my questions prior to hiring him. When we did hire him, he arrived on schedule and completed the job on schedule as well. I was very impressed with his professionalism. I would recommend Rich to anyone in the market for a new HVAC system. I will hire him again for maintenance and other HVAC needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+37

Recommended by93%of homeowners
Avatar for Superior Heating and Air
Superior Heating and Air
5.0(
9
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+10 more

Serving Sullivan, IN and surrounding areas

In business since 2017

Free estimates

Emergency services offered

Superior Heating and Air was founded in 2017 in order to fill the void for a quality contractor at a fair price. We pride ourselves on providing exceptional customer service. We have you covered for all your HVAC needs. Give us a call today for a free estimate. We look forward to hearing from you.

New Goodman Heat pump!
New Goodman Ac System installation
Ac system repair
Goodman Ac system
Response time7 hrs
Response rate88%
Recommended by100%of homeowners
SUPER HEATING & COOLING
4.6(
40
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Sullivan, IN and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Super HVAC showed me what I needed to do to make my A/C more efficient.  Spent about 20 minutes at my house and refused payment for his time.  He said he did nothing and so he charged nothing.  I even stated that he spent time there, but he would not accept payment. 
What a wonderful attitude and one that will make me recommend them to anyone looking for HVAC.  I certainly will call them when I get ready to make any HVAC changes in the future.
"
Recommended by91%of homeowners
Avatar for Aire Serv of Terre Haute
Aire Serv of Terre Haute
5.0(
4
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+12 more

Serving Sullivan, IN and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"He is one of the best HVAC guys I have ever seen, he is very honest in everything he does, and he sells number one place of equipment. he is also a hard worker and is a very straight forward person. He has worked over 100 properties for me and does rock solid work."
modulating boiler
Response time10 hrs
Recommended by100%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

Indications of an HVAC problem include inconsistent heating or cooling throughout your home, unpredictable temperature changes, or inadequate air flow from vents. Abnormal sounds such as grinding, banging, or hissing, and unpleasant smells like mustiness or burning are also potential warning signs. A rise in energy costs without an increase in usage may also imply decreased efficiency. An HVAC system that frequently cycles on and off or cannot maintain a stable temperature is malfunctioning.

No, it's not advisable to only replace the outside AC unit connected to your system. AC units are designed to work as a cohesive system, and older units work differently than newer units. Therefore, replacing only one component can lead to incompatibilities that affect the system’s performance. Replacing one component can void your warranty, costing you money for repairs.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

The Sullivan, IN homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.