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Verified Reviews for Air Conditioning pros in Mchenry, IL

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

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

Last update on July 02, 2026

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Avatar for All Temp Heating & Air Conditioning Inc
All Temp Heating & Air Conditioning Inc
4.6(
433
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Mchenry, IL and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"We recently replaced our Heating & Cooling system with a energy efficient furnace & air-conditioning unit. We knew what we wanted, so I received bids from 4 different suppliers, receiving bids for a apples to apples comparison. All-Temp was by far the best pricing. Our installation process went flawlessly & the installers answered any question that I had. They came back out to our home per my request on a couple more occasions, to adjust the amount of time the 2 stage system ran. Everyone that we have dealt with has been extremely professional, courteous & knowledgeable. We just received a clean & check of our system & Jen our technician met each of those attributes. I would highly recommend All-Temp for any of your heating or cooling needs. Herb Pitzman Huntley, IL"
Additional Photos
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Additional Photos

+2

Response time3 days
Response rate100%
11 neighbors recently requested a quote
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Avatar for Mr Duct Chicagoland
Mr Duct Chicagoland
4.8(
861
)
Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Service or Repair

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"I have used Mr Duct for air ducts and vent cleaning for several years.They consistently provide great service at a reasonable price."
Residential Air Duct Cleaning
Mr. Duct trucks parked outside of a commercial air duct cleaning job site in Chicago.
A dryer vent before being cleaned by Mr. Duct.
A Mr. Duct technician cleaning a dryer vent at a pet salon
A Mr. Duct technician cleaning a furnace

+81

Response time1 day
22 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for CR Mechanical Services, LLC
CR Mechanical Services, LLC
4.7(
53
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Mchenry, IL and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Rick was very helpful with selecting my new central air and furnace system. I am still thrilled with the result."
Office furnace
Furnace for office
Office ac coil with damper
Shah furnace
Shah furnace

+8

Response time6 hrs
Recommended by96%of homeowners
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Avatar for G & R Heating & Air
G & R Heating & Air
4.6(
133
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Knowledgeable and professional air conditioning service"
Additional Photos
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Additional Photos
Additional Photos

+20

Response time11 hrs
Response rate100%
76 neighbors recently requested a quote
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Avatar for G & R Heating and Air, LLC
G & R Heating and Air, LLC
4.6(
1,153
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"Adam and Riccardo were very nice, quick and efficient. Too bad the cooler weather isn't allowing us to use the new air conditioning unit....lol"
New 16 seer A/C
Old A/C
Old furnace
New Furnace
Water heater Installation

+1

Response time2 hrs
Response rate91%
434 neighbors recently requested a quote
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,289
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Mchenry, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Our AC Replacement was done correctly and quickly. The Estimator and Installers were great!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
23 neighbors recently requested a quote
Recommended by86%of homeowners
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The Pure Air Experts
4.6(
130
)
Central A/C - Service or Repair

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Credit card accepted

Customers say: True professional

"Replaced the original AC Unit(at least 25yr old), added a new humidifier to furnace and a new smart thermostat. The original guy who did repair work, Phil, was knowledgeable but at the end of the day wanted to sell anything he can. He had convinced me I was able to get rebates through ComEd for upgrading AC unit and adding the smart thermostat. At this time, I have been unable to get any rebates because he failed to mention I need to also have a furnace that qualifies and there was no receipts on the thermostat to claim that rebate. The day of the install, the guys that were here, did great work. They installed everything and added a damper to furnace(which does not work that great). When the guy installed the thermostat, he installed the wrong one and i had to show him the work order for the correct one. He left and it took a week for him to return to install the correct one. He also left with all the boxes."
Response time5 hrs
Response rate100%
Recommended by92%of homeowners
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Avatar for Perfect Temp Heating & Cooling
Perfect Temp Heating & Cooling
4.6(
198
)
Central A/C - Service or Repair

Serving Mchenry, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"The men that installed the air conditioner unit were great!! They are very professional and we would use their services again!"
Duct Cleaning
Duct Cleaning
Duct cleaning
Duct cleaning
Duct cleaning

+79

Response time10 hrs
8 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for ThermaTek Heating and Air
ThermaTek Heating and Air
4.7(
345
)
Central A/C - Service or Repair

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"It cost me $800 for recharging my ac unit and leak repaire"
Ac install
Ac install
Ac install
Ac install
Ac install

+16

Response time3 hrs
Response rate91%
9 neighbors recently requested a quote
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Avatar for Phoenix HVAC, LLC
Phoenix HVAC, LLC
4.8(
64
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Mchenry, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Friendly reliable owners and staff. Work was completed when scheduled and professionally. New AC was installed with furnace. Since it was cold out, I was assured They will check outside condenser unit in the spring. Comforting to work with a good company."
Staging and Wrapping Ductwork
Staging and Wrapping Duct Work
Installation
OUR WORK
OUR WORK

+21

Response time9 hrs
Response rate92%
1 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

This depends on the extent of the freezing. Some ACs only need an hour or two to thaw out, but others may need a full day to completely unfreeze. Once you turn off the system to let it unfreeze, check it periodically to make sure the drain pan doesn’t overflow. When you turn the system back on, keep an eye on it to ensure it doesn’t start freezing again.

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).

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.

You can run an HRV with air conditioning—assuming that you decide to keep the system on during the summer. The HRV will continue to bring in fresh outdoor air, which will then flow into your AC unit and cool down your home. It will also keep moving the stuffy indoor air out of your house.

Mold in your air conditioner isn't a good thing, as it can be harmful to your health. If the mold travels through the ductwork or is blown out of the A/C, you and your family can inhale mold spores and develop respiratory illnesses and other problems. Preventing mold from growing in the air conditioner will help protect your health.

The Mchenry, IL homeowners’ guide to air conditioning services

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

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