Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Chillicothe, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Chillicothe, IL?

Select your specific project to find the pro for you.

TRUSTED BY CHILLICOTHE, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon79
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Chillicothe, IL

*The Angi rating for Heating And Air Conditioning Service companies in Chillicothe, IL 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 Chillicothe, IL 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 August 01, 2026

Find Heating and air conditioning pros in Chillicothe

Avatar for Aire Serv of West Peoria
Aire Serv of West Peoria
5.0(
5
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair+4 more

Serving Chillicothe, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Aire Serv® wants you to breathe clean air all year round! That’s why our company focuses on excellence in customer service and quality AC and heating services. We are proud of our reputation for putting customers first and of having a brand synonymous with excellence since 1992! Wherever you see the name Aire Serv, you can expect quality services and exceptional customer service.\n\n

Gallery
Gallery
Gallery
Gallery
Gallery

+1

41 neighbors recently requested a quote
Request Quote
Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
354
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+12 more

Serving Chillicothe, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"2 friendly guys that did awesome work. Transfer switch works great and it's nice to see them clean up when done. I would definitely use the tiger again for electrical work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

321 neighbors recently requested a quote
Recommended by74%of homeowners
Request Quote
Avatar for Tim's Handyman Services
Tim's Handyman Services
5.0(
10
)
Thermostat - Install or Replace

Serving Chillicothe, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Used Angie to find a local (handyman) and within minutes was contacted by Tim. He arrived at my house within hours and was able to find the issue with a light fixture, that I could not resolve. Very satisfied with the work and Tim was great to work with. Will be recommending him to any neighbors that need help."
3 neighbors recently requested a quote
Request Quote
North South Heating and Cooling
New to Angi
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+15 more

Serving Chillicothe, IL and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n

5 neighbors recently requested a quote
Request Quote
Curtis Home Solutions
New to Angi
Thermostat - Install or Replace

Serving Chillicothe, IL and surrounding areas

Approved

I am a jack of trades independent contractor/ handyman with 10+ years experience. I am not a licensed plumber, licensed electrician, or licensed roofer. With that said it's easier to just tell you the things that I don't do. I do not do drain work, I do not replace electrical lines or panel boxes, I do not replace plumbing lines which includes water and gas, and I do not replace roofs. Aside from that I can do everything else, and have the tools to do so.

Request Quote
Avatar for Hawk Air Duct Cleaning
Hawk Air Duct Cleaning
4.9(
12
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Chillicothe, IL and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"they did a good job took about 3 hours
"
Recommended by100%of homeowners
Request Quote
Avatar for Duct Dusters, LLC
Duct Dusters, LLC
4.8(
118
)
Air Ducts & Vents - Clean

Serving Chillicothe, IL and surrounding areas

In business since 2018

Free estimates

Warranties offered

"On April 30, 2025 we utilized the services of Duct Dusters, Springfield, IL to clean our ducts prior to an installation of a new HVAC system. We selected Duct Dusters because they are BBB Accredited, had a 5-Star rating, great reviews, & the owner, Jeff explained their cleaning processes in great detail. Our technicians, Max & Cody arrived on time; were friendly & professional; wore booties over their shoes; showed us before-during-after pictures of each duct; and left the premises tidy & free of debris. They deserve our 5-star rating."
Return air
Return air
North end home
Return air
Return air

+5

Response time6 hrs
Recommended by95%of homeowners
Request Quote
Avatar for Preferred Home Improvements
Preferred Home Improvements
4.7(
12
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Chillicothe, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Very well done. good people to work with. I would hire them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 90
Heating and Air Conditioning questions, answered by experts

Replacing an HVAC system does not always include new ductwork. The decision depends on the condition of your existing ducts. If they are in good shape, correctly sized for the new unit, and meet current standards, they can often be reused. However, if the ducts are damaged, poorly designed, or improperly sized, they will likely need to be replaced or upgraded to ensure the new system operates efficiently. An HVAC contractor will assess your ductwork and recommend the best course of action. Typically, ductwork is purchased separately, and a full replacement will add to the overall project cost.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

High humidity is one of the most common reasons for air vents to sweat or produce condensation. When the cool, dry air from your HVAC unit meets warm and moist air in your home, it will cause condensation. Insulating your ductwork can help prevent this. If you live in a very humid region, a dehumidifier can also help.

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

It’s never a good idea to run your AC without a filter, even just for a night. The filter defends your HVAC system from the dust, dirt, debris, and other grime in your home. Without a filter, those contaminants are more likely to get inside your system and potentially damage it. 

The Chillicothe, IL 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.

See all articles