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TRUSTED BY LONG GROVE, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.9k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Long Grove - 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 Long Grove, 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
Response rate100%
19 neighbors recently requested a quote
Avatar for Shavitz Heating and Air Conditioning
Shavitz Heating and Air Conditioning
4.7(
417
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Long Grove, IL and surrounding areas

Approved

In business since 1904

Free estimates

Emergency services offered

"I've been using Shavitz for maintenance on both my HVAC systems for three years, and they've been great in every aspect. Because of my trust in their work, I'm now on a service contract. A while back, Shavitz also replaced my A/C coil in one of the furnaces that failed due to the installing company's poor installation. That repair was also perfect."
Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Besco Air Inc
Besco Air Inc
4.7(
833
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Boiler or Radiator Heating System - Install+47 more

Serving Long Grove, IL and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"The Besco team (sales, service, customer service) was a breath of fresh air for us. We purchased an older home and have had a series of mechanical issues (AC / Furnace) and recently had to replace our hot water heaters. The sales team was very helpful in outlining our various options in a low-pressure approach. The install team was exceptional in that they guys were willing to modify their placement of the unit so that we could use the (now) unused space for other (read: storage) purposes. This took add’l time and also required them to do a little additional work to make it work best for us. THEY DID THIS WILLINGLY BECAUSE IT MADE SENSE FOR US!! If you require anything HVAC / mechanical work for your home, please do not hesitate to engage Besco - you will not be sorry!"
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14 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AMERICAN FAMILY HEATING AND AIR CONDITIONING
AMERICAN FAMILY HEATING AND AIR CONDITIONING
4.9(
72
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+19 more

Serving Long Grove, IL and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I have lived in my home for over 23 years and have used several different Heating and Air companies thru the years... I needed service in Sept 2018 and had various coupon prices of $39 and $49 for an A/C tune up and was about to chose on of them but decided to check Angie's list for a review or google for the coupon companies. That is when I found American Family HVAC and started to read their reviews.. For some reason, I decided to use this company even tho the cost was a bit more money and boy am I ever happy that I went with my hunch. Sometimes it is NOT always about the money. I was really looking for an A/C furnace company that I could count on and use regularly. Not only was the repair gentleman that came out, on time and very thorough and professional but he spent a long time and I feel that I received the most thorough tune up that I have ever had. Josh, the service tech was just a delight and the best part was that this company has a membership contract that I was able to purchase. It is a small monthly charge monthly and . I get 2 free tune-ups a year included in the monthly fee for NO charge and if I need any service work I get 20% off of the charge and same day service...all for only $12.95 a month. What a wonderful idea and I cannot express how happy I am with this choice. It is a win-win deal for me and the company. I am a very happy camper with my choice of this company."
Response time20 mins
Response rate100%
11 neighbors recently requested a quote
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 Long Grove, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"I had a great experience with their HVAC services. They repaired my electrical baseboard heater quickly and made sure everything was working perfectly before leaving. The team was professional, punctual, and very knowledgeable. They also installed our new central A/C system smoothly with no issues at all. Communication was clear throughout the process, and the pricing was fair. Highly satisfied with the quality of work and customer service. I would definitely recommend them for any heating or cooling needs."
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+20

Response time11 hrs
Response rate100%
144 neighbors recently requested a quote
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 Long Grove, IL and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Rick came to my home and gave us a proposal to remove and replace our old furnace and electric water heater. His cost was more than fair. Craig came early on the scheduled day. In no time he had the old equipment removed. The new equipment installations were all completed the same day. My experiance with C.R. Mechanical Services was better than expected. Rick and Craig were both friendly and professional through-out the whole project. I will highly recommend them for anyone in need of a HVAC contractor."
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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Heating and Air Conditioning FAQs, answered by experts

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

Freon will go in the refrigerant lines near the back of your AC unit. Look for small ports with caps on a thin copper line—the Freon goes into those ports. You are best off hiring a licensed HVAC professional who can complete the job safely and correctly.

While you’ll pay more upfront for a brand-new HVAC unit, you can save money in the long run. Here’s how to save on your new HVAC system:

  • When purchasing a high-efficiency system, your energy bills will be lower in the future.

  • You may be eligible for special offers from your local energy company.

  • Depending on the system, you may be eligible for HVAC rebates and tax credits.

  • Choose to replace your air conditioning unit and furnace simultaneously to save on labor and installation costs. 

AC leaks are common, and an HVAC pro can usually fix them. You may be able to resolve some leaks on your own, but a professional HVAC technician should handle most AC leak repair. If left ignored, an AC leak could cause serious damage to your system or leave you with expensive water damage, usually leading to more costly repairs or replacements.

The Long Grove, 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.