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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

"Austin was on time, had the unit running in no time, and was able to fix an issue when other companies told me I needed to replace my unit. Great service!"
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

Yes, you can run an attic fan with the AC on. In fact, you don’t have a choice with a passive attic fan. Plus, when an attic fan draws out hot air from the attic, it helps regulate the temperature of your whole home, so your AC doesn't have to work as hard.

You will enjoy greater energy efficiency and save on your annual energy bills, with new, modern HVAC systems using 30% to 50% less energy than older models. Upgrading your HVAC system is also a great way to embrace new technology, such as smart thermostats, lighting, fan speed, and humidity from your phone or tablet.

You should only run your dehumidifier in warmer months, such as spring and summer, to get the best performance out of your system. The air gets drier when temperatures drop in the winter months, creating less of a need for a dehumidifier. However, when to run a dehumidifier will depend on your local climate.

To keep your air conditioner in good working condition, you should have it serviced by a professional at least once per year, ideally in the spring before the cooling season begins. If your AC unit is 10 years or older, consider servicing it twice a year (once in the spring and once in the fall) to catch potential problems early and help it reach its full lifespan. During a service visit, a technician will inspect, clean, and replace parts as needed. Regular maintenance helps avoid costly repairs. As a DIY task, you can also clean the evaporator coils annually.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

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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