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Top-Rated Air conditioning pros in Winthrop Harbor - Updated Nov 2026

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 RepairCentral Air Cleaner - Install or Replace+4 more

Serving Winthrop Harbor, 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"
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+2

Response time3 days
Response rate100%
19 neighbors recently requested a quote
Avatar for G & R Heating & Air
G & R Heating & Air
4.6(
139
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Winthrop Harbor, 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."
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+20

Response time11 hrs
Response rate100%
146 neighbors recently requested a quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,299
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+12 more

Serving Winthrop Harbor, 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."
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Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for AWE Air Water Energy
AWE Air Water Energy
4.7(
588
)
Ductless Mini-split A/C - Install or Replace

Serving Winthrop Harbor, IL and surrounding areas

Approved (Corporate)

In business since 1911

Free estimates

Emergency services offered

"

AWE (Air, Water, Energy) did a great job. The installers arrived on schedule and worked all day to removed the old equipment and installed the new equipment.  When they were finished, everything looked great and the work area was completely cleaned up.  The air conditioner has worked great all summer and kept our house at a comfortable temperature.  I am looking forward to a similar experience with the new furnace, also.  After the system was installed, AWE sent an inspector to our house to make sure the job was completed satisfactorily (which it was) and take pictures of the equipment to make sure it was installed correctly (which it was).

FYI, we have been a customer of AWE for over twenty years because of the great service they have always provided.  This was the 2nd furnace and air conditioner we have purchased from them.  They also installed our current water heater.  The technicians are always very knowledgeable and friendly.  They always arrive when they say they will arrive, and do what they promise.  The services provided have always met or exceeding our expectations.  I would recommend AWE to everyone.



"
Owner Ray Grimm
We're the ones with the yellow trucks, and cars, too!
Expert service keeps your home healthy
Solar Power
Regular Maintenance

+10

10 neighbors recently requested a quote
Recommended by92%of homeowners
The Pure Air Experts
4.6(
130
)
Central A/C - Service or RepairCentral Humidifier - Repair or Service

Serving Winthrop Harbor, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Credit card accepted

Customers say: True professional

"Phil was the best. He arrived a few minutes early to the time agreed. He absolutely did an awesome job on cleaning a dryer vent that was in dire need of cleaning. He worked so hard and made sure the job / project was done not only to my liking but to his as well. I would highly recommend Pure Air Experts for any job. I am having him back in two weeks to do a tune up for my furnace. Awesome job Phil"
Response time5 hrs
Response rate100%
Recommended by92%of homeowners
Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
4.4(
615
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Winthrop Harbor, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Salesman was knowledgeable, friendly, and low-pressure. Replacing HVAC units is never cheap, but their pricing was reasonable. Scheduling was easy. Furnace replaced as proposed, with no issues. Will be replacing AC in the spring."
Duct Cleaning Before/After
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Barrington Geothermal Lake Heat Exchangers
Barrington Geothermal - WaterFurnace Geothermal Heating/Cooling Systems with Desuperheaters

+48

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
5.0(
15
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+12 more

Serving Winthrop Harbor, IL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

We are family owned and operated. We service all brands, makes and models. From furnace and water heater repair and replacements, all the way to a leaking kitchen faucet or bathroom toilet. One call REALLY does it all. Faucets, toilets, sinks, drain rodding, water heaters, boilers, furnaces, air conditioners and humidifiers. New construction to radiant heat. You know you called the pros the first time. Licensed, bonded and insured, we offer easy approval and affordable financing as well!

17 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ThermaTek Heating and Air
ThermaTek Heating and Air
4.7(
345
)
Central A/C - Service or Repair

Serving Winthrop Harbor, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"They responded within 1 minute of my request at 10pm, showed up the next morning, and installed a new air conditioner the same day. They were knowledgeable, professional, and did a great job!"
Ac install
Ac install
Ac install
Ac install
Ac install

+16

Response time3 hrs
Response rate91%
18 neighbors recently requested a quote
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FAQs for air conditioning projects in Winthrop Harbor, IL

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Winthrop Harbor, IL homeowners’ guide to air conditioning services

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