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TRUSTED BY LAKE FOREST, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Lake Forest, 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 Lake Forest, 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 27, 2026

Top-Rated Heating and air conditioning pros in Lake Forest - Updated Nov 2026

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 - InstallCentral A/C - Service or Repair+18 more

Serving Lake Forest, IL and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"We have been happy with All Temp Heating/Air Conditioning Inc.  Then they told us we needed a part, I think the part was like 600 dollars.  So we didn't know what to do.  Originally All Temp had installed the air conditioner.  The reason we didn't use All Temp is because the charge for servicing the air conditioner was more."
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+2

Response time3 days
Response rate100%
19 neighbors recently requested a quote
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Avatar for Mr Duct Chicagoland
Mr Duct Chicagoland
4.8(
863
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallAir Ducts & Vents - Clean+2 more

Serving Lake Forest, 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
23 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for All Temp Heating & Air Conditioning
All Temp Heating & Air Conditioning
4.5(
2,818
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Boiler or Radiator Heating System - Install+17 more

Serving Lake Forest, IL and surrounding areas

Approved (Corporate)

In business since 1938

Free estimates

Emergency services offered

"They came early in the morning for a new HVAC install. Everything went well. They were neat and clean. The price was well below a comparable system from another company. They provided several options to replace out ageing HVAC system"
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100% Customer Satisfaction

+6

Response time10 hrs
54 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(
139
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Lake Forest, 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!!"
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+20

Response time11 hrs
Response rate100%
144 neighbors recently requested a quote
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Avatar for Mr. Duct, Inc.
Mr. Duct, Inc.
4.6(
1,260
)
Air Ducts & Vents - Clean

Serving Lake Forest, IL and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"November 2009 - When scheduling a time for the air duct cleaning, we were given an overview of exactly what services would be provided . Two clean cut young men performed the duct cleaning. They were on time, courteous and professional . We received an explanation of all they would do and when they were done, were given recommendations (i.e., change our furnace filter asap). I would definitely recommend this company."
Super Service Award 2020
Super Service Award 2019
Super Service Award 2018
Super Service Award 2017
Super Service Award 2016

+42

Response time7 hrs
Response rate97%
1 neighbors recently requested a quote
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Avatar for CR Mechanical Services, LLC
CR Mechanical Services, LLC
4.7(
53
)
Ducts & Vents - Install or ReplaceCentral A/C - InstallDuctless Mini-split A/C - Install or Replace+3 more

Serving Lake Forest, IL and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"In May of 2021, CR Mechanical replaced our HVAC equipment (furnace and AC), and installed a new air scrubber and an ecobee thermostat. We were very satisfied with their work (exceeded expectations), and Craig is an excellent installer (that was most important to us). The ecobee was defective out of the box, and he reinstalled our old thermostat and was back the next day (as promised) to install a replacement ecobee. Everything works great."
Office furnace
Furnace for office
Office ac coil with damper
Shah furnace
Shah furnace

+8

Response time6 hrs
1 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(
1,163
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairThermostat - Install or Replace+5 more

Serving Lake Forest, 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%
201 neighbors recently requested a quote
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Avatar for Phoenix HVAC, LLC
Phoenix HVAC, LLC
4.8(
64
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+11 more

Serving Lake Forest, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I needed a new HVAC. I received a prompt bid at an extremely favorable price. The technicians who installed my new unit were extremely knowledgeable and personable! They finished the job in one day, even though they had estimated it would take two whole days. They cleaned up after themselves in a marvelous way."
Staging and Wrapping Ductwork
Staging and Wrapping Duct Work
Installation
OUR WORK
OUR WORK

+21

Response time9 hrs
Response rate92%
3 neighbors recently requested a quote
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Avatar for Cahill Heating, Cooling, Electric, Plumbing & Sewer
Cahill Heating, Cooling, Electric, Plumbing & Sewer
4.8(
33
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Lake Forest, IL and surrounding areas

Approved

In business since 1973

Free estimates

Emergency services offered

For over 50 years, Cahill has delivered quality heating, cooling, electrical, plumbing, and sewer services. Locally owned and operated with 1,000+ 5-star reviews, we cost-effectively serve every customer.

Furnace Installations
Heat Pump Installations
Furnace Installations
Additional Photos
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+7

Response time8 hrs
12 neighbors recently requested a quote
Recommended by90%of homeowners
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Dr. HVAC Heating and Cooling
4.5(
376
)
Gas Furnace / Forced Air Heating System - Repair

Serving Lake Forest, IL and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

Dr. HVAC has been in business for 31 years, owned and operated by Steve Rokkas. Steve is personally involved with every project to insure complete customer satisfaction. If you are in need of a full-service HVAC contractor, call Dr. HVAC for reliable, speedy installation at the best prices in the Skokie, IL area. If you are looking for duct work or heating services call Dr. HVAC for the best customer service in the area. Contact us today!\nAll equipment comes with 5 yr part customer has to register for 10yrs parts

Recommended by92%of homeowners
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Showing 1-10 of 650
Heating and Air Conditioning FAQs, answered by experts

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

Many factors affect how much adding air conditioning will cost you, from the size of your home to the size, type, brand, and installation specifics of the system itself. Chances are, a new central air conditioning system for a 2,000-square-foot house will cost somewhere between $3,900 and $7,900 to install, with an average around $6,000. 

Yes, having mismatched evaporator and condenser coils in your AC system can lead to serious issues. For instance, it can result in higher monthly energy costs as the system runs longer to compensate for the mismatch. This mismatch can also put extra stress on the system, compromising its efficiency and longevity. 

Along with that, mismatched coils can lead to higher temperatures and humidity levels in the home. What’s more, using coils of different sizes may violate the manufacturer's warranty, as they are designed to work synergistically, and any mismatch could lead to repairs and system failure.

Signs that your air conditioner capacitor is bad or failing include a range of symptoms. The AC unit may not turn on at all, or it might struggle to start before shutting down randomly or in the middle of a cooling cycle. You might hear a humming or banging noise when it attempts to start, or the compressor might hum without the unit actually running. Other indicators include a smell or smoke coming from the unit, the blower circulating room-temperature air instead of cold air, and an unexpected increase in your energy bills.

Yes. Return air vents are responsible for gathering and pulling in the warmer air. Once they draw it in, your system conditions the air by removing the warmer molecules from it, allowing your air conditioner to dispense the cooler air back into your home. Not only does this create a more comfortable environment for you, but it also keeps your air conditioner from overworking, resulting in lower energy bills. 

The Lake Forest, 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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