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TRUSTED BY SULLIVAN, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon64
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Sullivan, MO

*The Angi rating for Heating And Air Conditioning Service companies in Sullivan, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Sullivan, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on September 11, 2026

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

Avatar for RDI CONTRACTORS LLC
RDI CONTRACTORS LLC
5.0(
11
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair

Serving Sullivan, MO and surrounding areas

Approved

In business since 2025

Emergency services offered

Credit card accepted

"Had a few issues with my HVAC. Austin was fantastic and fixed everything the same time. Was late"
Response time5 hrs
34 neighbors recently requested a quote
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Avatar for Show-Me Comfort LLC
Show-Me Comfort LLC
5.0(
5
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+14 more

Serving Sullivan, MO and surrounding areas

Approved

Hello, My Name is Johnathan Steele, Owner Operator of Show-Me Comfort Heating and Air Conditioning. I started my company with the intent to help and show transparency to my customers and to educate them to the best of my abilities on the system that keeps their Home Comfortable. Most Companies will come in to a house fix the issue then leave… That’s where we try and separate ourselves by finding the culprit, educating our customers on why it happened and how to prevent future problems. \n\nWe at Show-Me Comfort Heating and Air Conditioning take pride in our work, and if we wouldn’t do it in our house we wouldn’t do it to yours.

13 neighbors recently requested a quote
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Avatar for CLIMATE CREW HEATING & COOLING LLC
CLIMATE CREW HEATING & COOLING LLC
5.0(
5
)
Ductless Mini-split A/C - Install or ReplaceCentral A/C - InstallElectric Furnace / Forced Air Heating System - Install+2 more

Serving Sullivan, MO and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

We pride our company on reliability, great communication, \nintegrity, and quality work. We are experts in our trade and will do our best \nto keep you as educated as we can on your particular task or project. We are locally owned and operated. Give us a call today, we look forward to earning your business! \n

1 neighbors recently requested a quote
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Avatar for Crooked Tower LLC
Crooked Tower LLC
4.8(
20
)
Thermostat - Install or Replace

Serving Sullivan, MO and surrounding areas

Approved

In business since 2021

Small jobs welcome

Credit card accepted

"I needed almost everything done, wallpaper removal, wall repair, carpet, wood flooring, painting, new hardware, cabinets redone, countertop replaced"
Basement Storage
Hardwood floor
2 neighbors recently requested a quote
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Avatar for LJC Painting
LJC Painting
5.0(
2
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Sullivan, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Great job on my interior remodel. Very professional and courteous. Completed work on time and within budget."
Replaced decking
Finished product
TopShield installed
Finished Product
Before Paint

+1

6 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Dan Sliney Handyman
Dan Sliney Handyman
New to Angi
Electric Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - RepairGas Boiler or Radiator Heating System - Install+3 more

Serving Sullivan, MO and surrounding areas

Approved

Property manager with 25 years experience fixing thing that break. Plumbing and electrical repair.

2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Common signs of insufficient return air include uneven temperatures, with some parts of your home feeling hotter or colder than others, and noticeable differences in air pressure between rooms. You might also observe that more air is blowing in rooms closer to the AC unit. Leaky air ducts can also be a related issue or clue.

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor’s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren’t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals.

It depends on the specifics of your warranty. The motor is likely not covered if you’re working with a limited warranty. The same goes for other components like the compressor and evaporator coil. Some extended warranties will cover the blower and fan motor, so read the fine print before signing up. Additionally, the manufacturer may offer a warranty for the parts, including the motor, though there’s likely to be a strict time limit for this coverage.

The Sullivan, MO 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.

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