Get matched with top air conditioning pros in Third Lake, IL

Q: How much does it cost to replace an HVAC system?

• <div><p>The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.</p></div>

Q: Should I repair or replace my air conditioner?

• <div><p>When deciding whether to repair or replace your air conditioner, several factors should be considered. It is generally worth repairing the unit if it's less than 10 years old, the warranty is still active, and you're dealing with a one-off issue. Most central AC units last about 15 years, while window units last 8 to 10 years. If your unit is approaching or has surpassed the 10-year mark and requires frequent or costly repairs (e.g., over $5,000), replacement is often the more sensible long-term investment. For older, inefficient, or out-of-warranty units experiencing multiple problems, replacing it is typically the better choice.</p></div>

Q: How long do AC capacitors last?

• <div><p>AC capacitors have a wide lifespan, ranging from five to 20 years, with an average of about 10 years. Many capacitors will last for the entire life of the air conditioning unit, and most homeowners only need to replace one once. A capacitor should only be replaced if an HVAC professional diagnoses a problem with it. Premature failure can be caused by overheating, power surges, or short circuits. You can help extend the life of your AC capacitor by scheduling regular AC maintenance each year.</p></div>

Q: How much does it cost to hire an HVAC technician for maintenance?

• <div><p>The cost of annual maintenance depends on the type of HVAC system you have. AC service <a href="https://www.angi.com/articles/ac-service-cost.htm">typically costs an average of <b>$200</b></a> but ranges from<b> $100 to $550</b>. 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. </p></div>

Q: Should my HVAC damper be open or closed?

• <div><p>Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent <a href="https://www.angi.com/articles/troubleshooting-common-air-conditioning-problems.htm">common AC problems</a>.</p></div>

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Verified Reviews for Air Conditioning pros in Third Lake, IL

*The Angi rating for Air Conditioning companies in Third Lake, 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 Third Lake, 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 June 22, 2025

Reviewed in June 2025
They fixed my air conditioner with same day service on the hottest day of the year.
G & R Heating & Air
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Reviewed in July 2024
Maxcomfort is by far the best HVAC company I have used. Very promptly, puntual and a neat worker. Irving is very knowledgeable and was able to answer any questions I had. Happy with my AC install. Will definitely use them in the future.
Maxcomfort Hvac Llc
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Reviewed in June 2024
Mike was very helpful going through our options. We decided to install a new furnace and AC unit
G & R Heating and Air, LLC
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Reviewed in December 2022
Air Solutions was very professional and informative during a routine cleaning/humidifier replacement. Prefer to use a smaller (family owned) business who is local to me. Signed up for their maintenance program in addition.
Air Solutions Heating Air-Conditioning Duct Cleaning
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Reviewed in September 2022
Goo cleaned the furnace, checked the humidifier and the new AC unit.
Aqua Plumbing, Heating, & Cooling Services, Inc.
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Reviewed in June 2022
Absolutely fantastic! Adam was super friendly and knowledgeable. Gave us some solid technical information without it being confusing or talking over our heads. Our air conditioner works wonderfully again and we got the maintenance plan so we don't have to worry or think about doing this all...
Herchenbach Mechanical Inc.
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Reviewed in January 2022
The team was very professional and did the installation of our new AC on time and for a good value. When the local inspector had problems understanding the building code for aheat pump they resolved it so that I didn't need to be involved. We will continue to use them as our maintenance...
Advanced Air Conditioning, LLC
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Reviewed in February 2021
It was a cluster..... from the start. It took 5 times to get the AC installed correctly. There was no communication between the salesman, office and the installers. The office staff told us they'd wave the $89 service charge for them to come out when we called 1 hour after the 2nd service tech...
Four Seasons Heating & Air Conditioning
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Reviewed in October 2020
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...
Besco Air Inc
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Reviewed in September 2020
Pre-summer preventive maintenance on the AC compressor and system. No surprises. On time. The tech observed COVID-19 protocols. There may be cheaper options, but I have confidence in their competence and quality.
American Weathermakers
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Find Air conditioning pros in Third Lake

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 Third Lake, IL and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"Good. AC needed freon. Will possibly replace in spring. If so, will definitely hire again."

Response time3 days

Response rate100%

15 neighbors recently requested a quote

Central A/C - InstallAir Ducts & Vents - CleanCentral A/C - Service or Repair

Serving Third Lake, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Andrew and his assistant were very professional in their approach to cleaning our air ducts and dryer vent. The services they provided were totally consistent with how they describe their approach to the service they provide. This included the very helpful before and after pictures taken which would convince anyone of the need to have this work performed in their homes."

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

24 neighbors recently requested a quote

Recommended by90%of homeowners

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Third Lake, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Very impressed with their heating and air conditioning maintenance. They explained everything clearly, worked efficiently, and left no mess behind. Our home feels fresher after the air duct cleaning. Definitely a trustworthy team you can rely on."

+20

Response time11 hrs

Response rate100%

110 neighbors recently requested a quote

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CR Mechanical Services, LLC

4.7(

)

Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Third Lake, 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."

Response time6 hrs

Recommended by96%of homeowners

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Four Seasons Heating & Air Conditioning

4.3(

3,297

)

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Third Lake, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"We had a great experience with Four Seasons Heating & Air Conditioning during our recent replacement of our furnace and AC unit. They were very professional and completed the job on time and answered all of my questions. Would recommend them for our Heating, Air Conditioning, Plumbing and Electrical needs."

Response time9 hrs

35 neighbors recently requested a quote

Recommended by86%of homeowners

Ductless Mini-split A/C - Install or Replace

Serving Third Lake, IL and surrounding areas

Approved (Corporate)

In business since 1911

Free estimates

Emergency services offered

"The air conditioner is working fine."

We're the ones with the yellow trucks, and cars, too!

+10

5 neighbors recently requested a quote

Recommended by92%of homeowners

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Cahill Heating, Cooling, Electric, Plumbing & Sewer

4.8(

)

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Third Lake, 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.

Response time8 hrs

8 neighbors recently requested a quote

Recommended by90%of homeowners

Central A/C - Service or Repair

Serving Third Lake, 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

Air Ducts & Vents - Clean

Serving Third Lake, IL and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Marcos and Roberto provided excellent service. They identified an issue we had with the aluminum dryer vent duct and replaced it with hard pipe. We would highly recommend Mr Duct."

+42

Response time7 hrs

Response rate97%

1 neighbors recently requested a quote

Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+1 more

Serving Third Lake, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I had the opportunity, and the pleasure, to work side by side coordinating with the office manager Maggie. She was so intentive with all my needs and always made it easy to get my questions answered. Maggie kept me informed on every step of this very large process from scheduling a crane and road crew, to getting permits and having the work inspected. SHE MADE THE WHOLE THING SIMPLE. Now the work crews worked quickly to get things running for us. The original plan was to take two days getting the old air conditioners down from the roof and then the new ones up and running. The crews had everything done in less then a day. I could not be happier with my experience with Phoenix HVAC!! I will definitely hire them again!"

+21

Response time9 hrs

Response rate92%

2 neighbors recently requested a quote

Request Quote

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Showing 1-10 of 375

Air Conditioning questions, answered by experts

The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.

When deciding whether to repair or replace your air conditioner, several factors should be considered. It is generally worth repairing the unit if it's less than 10 years old, the warranty is still active, and you're dealing with a one-off issue. Most central AC units last about 15 years, while window units last 8 to 10 years. If your unit is approaching or has surpassed the 10-year mark and requires frequent or costly repairs (e.g., over $5,000), replacement is often the more sensible long-term investment. For older, inefficient, or out-of-warranty units experiencing multiple problems, replacing it is typically the better choice.

AC capacitors have a wide lifespan, ranging from five to 20 years, with an average of about 10 years. Many capacitors will last for the entire life of the air conditioning unit, and most homeowners only need to replace one once. A capacitor should only be replaced if an HVAC professional diagnoses a problem with it. Premature failure can be caused by overheating, power surges, or short circuits. You can help extend the life of your AC capacitor by scheduling regular AC maintenance each year.

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.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

The Third Lake, IL homeowners’ guide to air conditioning services

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

See all articles

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•
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•
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