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TRUSTED BY MCHENRY, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon340
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Mchenry, 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 Mchenry, 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 02, 2026

Find Heating and air conditioning pros in Mchenry

Avatar for All Temp Heating & Air Conditioning Inc
All Temp Heating & Air Conditioning Inc
4.6(
433
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+18 more

Serving Mchenry, IL and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"This was our second call to All Temp for service. Mike was our technician and he is very knowledgeable and professional. He gave some good advice on cooling our house, what to look for in the HVAC system in a new house (we are looking), and didn't try to up-sell me on things we didn't need. He was quick with his assessment and work. We'll be calling them again if we have HVAC issues."
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+2

Response time3 days
13 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Mr Duct Chicagoland
Mr Duct Chicagoland
4.8(
859
)
Air Ducts & Vents - Clean

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"The technician did a very good job cleaning the hvac ducts."
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
18 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for G & R Heating & Air
G & R Heating & Air
4.6(
127
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"HVAC machine outside wasn’t working. Ricardo ? was so good at explaining & suggesting his expert ideas. There was a mouse & nest inside the machine & wires were severed. He removed the critter & nest & repaired the wires. All is working again. What a great guy he is!!"
Additional Photos
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+20

Response time11 hrs
103 neighbors recently requested a quote
Recommended by71%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 ReplaceDucts & Vents - Install or Replace+3 more

Serving Mchenry, IL and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I have been working with Rick * C R Mechanical ) for the past 5 years I live in east coast and have a rental home in IL , have used this company for regular maintenance So far we got our Aging HVAC and Water heater replaced thru RIck , and all was a pleasant experience .Very professional I would highly Recommend C R Mechanical for any of the Above related work Thanks Anil"
Office furnace
Furnace for office
Office ac coil with damper
Shah furnace
Shah furnace

+8

Response time6 hrs
2 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for G & R Heating and Air, LLC
G & R Heating and Air, LLC
4.6(
1,138
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairThermostat - Install or Replace+5 more

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"professional & courteous service. Explained what they were doing and how to improve my HVAC system"
New 16 seer A/C
Old A/C
Old furnace
New Furnace
Water heater Installation

+1

Response time2 hrs
Response rate91%
379 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 - Service or RepairDuctless Mini-split A/C - Install or Replace+11 more

Serving Mchenry, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Anthony is a skilled, experienced HVAC technician. He started this business from scratch and has worked hard to build it and grow it in a very short time. His success speaks to the quality of the work he does and the service he provides."
Staging and Wrapping Ductwork
Staging and Wrapping Duct Work
Installation
OUR WORK
OUR WORK

+21

Response time9 hrs
Response rate92%
Recommended by96%of homeowners
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,281
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Mchenry, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Everyone from the sales person to installers were great. I love our new HVAC system!"
Additional Photos
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Response time9 hrs
30 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Perfect Temp Heating & Cooling
Perfect Temp Heating & Cooling
4.6(
198
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair+1 more

Serving Mchenry, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Very responsive,!and got to my place within the half hour. Dave is personable, and appears to know HVACs. Will use for ongoing annual maintenance, as well..."
Duct Cleaning
Duct Cleaning
Duct cleaning
Duct cleaning
Duct cleaning

+79

Response time10 hrs
26 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
The Pure Air Experts
4.6(
130
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair - For Business+2 more

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Credit card accepted

Customers say: True professional

"One hour heating of lake villa went above and beyond. Furnace was making load noise when it kicked on. Completely obvious he knew what he was doing. They repaired it, checked for other signs of issues, and cleaned up the furnace. The cleaning was a job on its own since it has not been serviced or cleaned in about 8 years. Customer service was outstanding and understanding. It s a new home to us and in the past I always used to call the company with the sticker on furnace from previous owners. I will be using one hour heating from now on for all my Hvac needs. Thank you"
Response time5 hrs
Response rate96%
Recommended by92%of homeowners
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Avatar for Legendary Service
Legendary Service
5.0(
25
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceElectric Boiler or Radiator Heating System - Install+9 more

Serving Mchenry, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Very responsive and offered options for financing. The Legendary Service Team has a thorough understanding of regulations and offers environmentally friendly suggestions for your HVAC needs. They did a furnace/AC replacement in my home. Their scehduling system texts you when they are in route to your home. The install went seamlessly. They kept all work areas covered and clean. I will use them for all future maintenance needs."
Reclaimed Mechanical Room
Reclaimed Mechanical Room
Response time2 days
6 neighbors recently requested a quote
Recommended by72%of homeowners
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Showing 1-10 of 494
Heating and Air Conditioning questions, answered by experts

Yes, it's normal for air conditioners to leak tiny amounts of water due to condensation. Under normal circumstances, all excess moisture travels to the drain pan to be pumped through your system's drain line. You should call a technician to diagnose the issue if you're noticing frequent leaking or pooling. It's also important to investigate if your homeowners insurance can cover water damage.

While all portable AC units will collect moisture as part of their cooling and dehumidifying process, whether and how often you need to drain them depends on what kind of unit you have and the natural humidity levels where you live. For example, if you live in a very dry area and have a self-evaporating unit, you may not need to drain your portable AC very often at all. Some units may automatically drain collected moisture out the window through their exhaust vent.

Split systems are the most common type of HVAC system. Split systems have two main units: an indoor one and an outdoor one. These units work together to pull in air, heat or cool it, and distribute it throughout your home. Other popular types of HVAC systems include hybrid systems and packaged heating and air systems.

After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and improving your indoor air quality.

There are several steps you can take to prevent your AC drain from clogging. This includes cleaning the drain line at least every three months, changing the filter every one to three months, and getting your AC serviced annually. Also, if any problems arise with your AC, hire an HVAC technician to deal with them ASAP.

The Mchenry, 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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