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

*The Angi rating for Heating And Air Conditioning Service companies in Illiopolis, 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 Illiopolis, 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 July 08, 2026

Find Heating and air conditioning pros in Illiopolis

Avatar for MB Heating & Cooling
MB Heating & Cooling
4.6(
26
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGeothermal Heating or Cooling System - Service+1 more

Serving Illiopolis, IL and surrounding areas

Approved

In business since 1986

Emergency services offered

Credit card accepted

"Called immediately, responded same day had it fixed and us warm, same day. Repairman was professional and showed concern for our needs. Very knowledgeable, highly recommended."
Response time4 hrs
Response rate90%
27 neighbors recently requested a quote
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Tiger Plumbing, Heating, Air Conditioning, & Electrical Services
3.4(
353
)
Central A/C - InstallCentral A/C - Service or RepairAir Ducts & Vents - Clean+12 more

Serving Illiopolis, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"My technician Keith was great. Friendly and super informative. Also too a quick look at the entire drainage system and gave my an idea of where problems will pop up the future without preventative measures (my home was built in the 50s and while the previous owners took really good care of the house nothing has been gutted and replaced yet)."
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+5

130 neighbors recently requested a quote
Recommended by74%of homeowners
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Affordable Home Repair
5.0(
4
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Illiopolis, IL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"John and his helper Nathan did an excellent job!! They arrived when they said they were going to an hung a 65 inch tv and a 50 inch tv with no problem at all! The job was done in a timely manor. Both were very professional and friendly! The price was reasonable too!! I would highly recommend and trust the work of Affordable Home Repair for any job! Just an fyi…I told him I would take care of cord hanging down."
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Response time2 days
Response rate100%
2 neighbors recently requested a quote
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Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
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 Illiopolis, IL and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Excellent service, very fast response to my request for service, picked up laptop, diagnosed issues. Initially thought it was an OS update issue but the hard drive had failed along with other components (including 'CPU). Because other components were involved, a new solid state hard drive was put into a laptop with a working processor - same type CPU as in the failed unit. The laptop was repaired and returned in less than a week. This company picked up and dropped off the laptop (driving from Huntsville, AL (about 60-70 minutes)-- great service in this covid environment. I would recommend this company to my family./friends and will use again."
2014 Super Service Award Winner!
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Recommended by97%of homeowners
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Avatar for Cripe Heating and Air - Home Facebook
Cripe Heating and Air - Home Facebook
4.8(
6
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+8 more

Serving Illiopolis, IL and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Would gladly hire again if I needed something done"
Response time7 hrs
Response rate92%
Recommended by100%of homeowners
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Avatar for Tiger Services, LLC
Tiger Services, LLC
3.3(
245
)
Ducts & Vents - Install or ReplaceElectric Boiler or Radiator Heating System - InstallElectric Furnace / Forced Air Heating System - Install+11 more

Serving Illiopolis, IL and surrounding areas

In business since 1993

Emergency services offered

Warranties offered

"Had a couple tec s come out and they were the most flexible, accommodating folks, giving me several options on my electrical request. Outstanding!!"
Plumber Service
Bathroom Remodel
Tankless Water Heater
Water Heater Service
Bathroom Remodels

+27

Recommended by80%of homeowners
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Heating and Air Conditioning questions, answered by experts

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

AC drip pans last five to 20 years, depending on the material. Plastic AC drip pans last five to 10 years, while metal pans can last over 10 years. Plastic AC drip pans are vulnerable to cracking in response to temperature changes. Metal drip pans are prone to rusting over time, which can also lead to leaks.

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers, or ASHRAE, sets the standard guidelines for air changes per hour in homes and businesses. The International Residential Code, or IRC, also sets ACH requirements for residences and bases those requirements off of ASHRAE standards plus climate specifics related to your location.

Some HVAC systems tend to use R410A refrigerant, although if you have an older model it may be using R22. R22 is banned due to its harmful environmental and health impacts, and it is a sign that your AC unit is old enough to consider a replacement and the significant efficiency gains that could come with it.

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

The Illiopolis, 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.

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