Serving Buffalo Grove, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Arrived within the expected hours and provided a thorough inspection, cleaning and servicing of the air conditioning equipment. Serviceperson was clean and courteous and explained the findings in detail. Definitely will continue to use All Temp!"
+2
Serving Buffalo Grove, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"air duct and dryer cleaning"
+81
Serving Buffalo Grove, IL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Fantastic job from first contact through final installation. Highly recommend Simply Comfortable for your HVAC needs."
+2
Serving Buffalo Grove, 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."
+8
Serving Buffalo Grove, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Knowledgeable and professional air conditioning service"
+20
Serving Buffalo Grove, IL and surrounding areas
Approved
In business since 1911
Free estimates
Emergency services offered
"The air conditioner is working fine."
+10
Serving Buffalo Grove, 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. "
Serving Buffalo Grove, 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."
Serving Buffalo Grove, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Adam and Riccardo were very nice, quick and efficient. Too bad the cooler weather isn't allowing us to use the new air conditioning unit....lol"
+1
Serving Buffalo Grove, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Credit card accepted
Customers say: True professional
"When we purchased this house 20 years ago, we hired a different company to replace the furnace and air conditioner. There was very little flow so they replaced several of our runs also. After all that work and expense, we were forced to run two window a/c units along with our central air. Yet our house still would not cool! We were extremely frustrated. When we hired One Hour Heating and Air Conditioning, Phil was sure he could help us. And he did. We cannot believe how wonderful our house cools. Phil was very accommodating, as we had to split the installment dates for the furnace and air conditioner. He always returned our calls, answered all our concerns, was timely, efficient and professional, as was his staff. His service and equipment exceeded our expectations and we give One Hour Heating and A/C our highest recommendation."
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.
From average costs to expert advice, get all the answers you need to get your job done.
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