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Find Air conditioning pros in Oak Lawn

Avatar for Shavitz Heating and Air Conditioning
Shavitz Heating and Air Conditioning
4.7(
417
)

Serving Oak Lawn, IL and surrounding areas

Approved

In business since 1904

Free estimates

Emergency services offered

"When my air conditioning stopped working, I first contacted a different HVAC company and the technician made the assessment that the compressor was shot and in need of replacement. They recommended the option of going with a completely new AC unit. I decided to get a second opinion from Shavitz (having seen their sticker on some of the AC units in my building). Cornelius from Shavitz confirmed the initial diagnosis and the estimates that the project manager, Lou, subsequently quoted me were very much in line with what I received from the other company. About $200 more for a comparable AC model, but given what I read about the level of quality Shavitz brings, I decided to go forward with using Shavitz to perform the replacement of my air conditioner. Scheduling the appointment with Chris was a breeze. The day the work was scheduled to be performed, the installation team, Mike D and Mario, arrived exactly on time and quickly got to work. They were professional, friendly, and very knowledgeable about what they were doing. I especially appreciated how thorough they were in the installation and testing of the system. The AC units are on the rooftop of the condo building so there is a long distance between the AC unit and the furnace/AC coil in my condo. Because of this, it took a bit of time to flush the lines, fill with the refrigerant, and test it to make sure it was working as expected. Being a hot day and a Friday, it would have been easy for them to test it to a point where it was “good enough”. Due to the thoroughness of their testing they found an issue in the lines that they were able to fix. While this added time to an already long day, they explained to me what they were doing and the importance of it. All in all, I was very impressed with Mike and Mario’s level of skill and pride they have in their craft. I will absolutely be using Shavitz exclusively going forward for my air conditioning and heating work, and highly recommend them."
Response time10 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for All Temp Heating & Air Conditioning
All Temp Heating & Air Conditioning
4.5(
2,817
)

Serving Oak Lawn, IL and surrounding areas

Approved (Corporate)

In business since 1938

Free estimates

Emergency services offered

"I was very happy with this company. They did not try to over sell me stuff I did not need. This is a real plus. They were friendly professional and cleaned up after themselves. All my questions about the unit were answered so I understood what they were talkin about. Their pricing is reasonable. They promptly provided info I needed to get the permit from the village for install. There is nothing negative about my experience with them. I believe from my experience with ALL TEMP Heating and Air Conditioning was fair and honest. I will be recommending them to others as they were recommended to me"
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100% Customer Satisfaction

+6

Response time10 hrs
44 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Home Comfort Systems Inc
Home Comfort Systems Inc
4.9(
315
)

Serving Oak Lawn, IL and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Home Comfort Systems replaced my old air conditioner with a new American Standard air conditioner. The day it was going to be installed, one of the owners, Steve, stopped by to look at the old air conditioner, and explain what was going to be done. The installers arrived an hour later, explained to me exactly what they were going to do, and all the specs of the new air conditioner. Roughly 2 hours later, they were finished. They explained the warranty, and cleaned up. The only evidence that they were there was the new air conditioner, no debris left behind. They were very professional, and I would gladly use them again!"
Additional Photos
Response time8 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for AMERICAN FAMILY HEATING AND AIR CONDITIONING
AMERICAN FAMILY HEATING AND AIR CONDITIONING
4.9(
72
)

Serving Oak Lawn, IL and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"He was very good.  I had some company coming from out of town and my air conditioning wasn't working.  He came that day to fix it.  He knows what he is doing.  He gets the job done.  He came within 1/2 hour of my phone call because he was in the area.  He got my air conditioner going right away.  It was really hot that day.  He took care of it right away.  He could have tried to tell me it was the compressor or something, but he didn't.  He was prompt, he did a good job, and he was fair.  He installed a furnace and air conditioner at my mother's house as well.  He did a good job there too.  He was here previously to try and quiet down my air conditioning, but nothing seemed to work too well.  He was really good on the installation, but I thought he was a little high on the repair. "
Response time20 mins
Response rate100%
4 neighbors recently requested a quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,286
)

Serving Oak Lawn, 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."
Additional Photos
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Response time9 hrs
25 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Precision Today Plumbing Heating Cooling Electrical
Precision Today Plumbing Heating Cooling Electrical
4.6(
326
)

Serving Oak Lawn, IL and surrounding areas

Approved

In business since 1992

Emergency services offered

Warranties offered

Precision Today is a trusted multi-trade contractor with a expert technicians specializing in HVAC services for residential properties. We deliver fast, safe, and reliable solutions—backed by same-day service.\n\nOur HVAC services include heating and cooling system installation, furnace and AC repair, seasonal maintenance, ductwork services, thermostat upgrades, and energy-efficient system replacements. Whether you need a quick repair or a full system upgrade, our technicians work with precision and attention to detail to keep your home or business comfortable year-round.\n\nWith locations in Carol Stream, West Chicago, Grayslake, Palatine, Franklin Park, and Naperville, we provide efficient coverage across the surrounding Chicago suburbs—allowing us to respond quickly and keep your project moving.\n\nIf you’re looking for a responsive, professional contractor who prioritizes safety, speed, and quality, Precision Today is ready to help—often the same day you call.

Battery back up pump
Copper vent line repair
Copper vent line repair
Copper vent line repair
Kitchen sink update

+49

90 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AL'S Cooling & Heating
AL'S Cooling & Heating
5.0(
10
)

Serving Oak Lawn, IL and surrounding areas

Approved

Customers say: True professional

"I am in the Construction Industry & I found Al’s Heating and Cooling to be above and beyond all other HVAC contractors that I have dealt with. I highly recommend them to all of my friends, family and colleagues."
New Rheem Furnace
Navien high-efficiency tankless water heater install.
Weil McLain cast iron sectional boiler install.
Weil McLain cast iron sectional install.
New Rheem Furnace

+11

Response time2 days
Response rate100%
7 neighbors recently requested a quote
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FAQs for air conditioning projects in Oak Lawn, 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 Oak Lawn, IL homeowners’ guide to air conditioning services

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