Serving Addison, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"
+2
Serving Addison, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Repairing Central Air Conditioning System"
Serving Addison, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"Mr. Duct answered my call for service and was able to schedule within a few days at a time that was most convenient for my schedule. They were very open about the scope of the job and the pricing and I was more than satisfied with the quote for the work. The service technician, Mario, did an excellent job. He worked especially **** ** the second floor ducts which were just filled with construction dust and dirt! He arrived on time, was very careful as he worked, and was not the least bit fazed by the condition of those ducts! He just got to work and made them shine! I appreciated that he took pictures and shared the before and after so I could see what needed to be done. He also cleaned out the dryer vent and the outside air conditioning condensers - all with a smile and a wonderful attitude. Mario clearly had a strong work ethic and kept me informed about the progress as he moved floor to floor. I will be scheduling a cleaning next year, likely in September, and will request that Mario return to do the job. The house just feels and smells so much cleaner and fresh! Thank you Mr. Duct (and especially Mario)!"
+81
Serving Addison, IL and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"The owner, Steve, came out and explained everything and more that I should be aware of regarding the replacement of the 26 year old furnace and Air conditioning units. He was a pleasure to work with and the price quote was more than acceptable. I did accept and within the week the crew arrived to do the installation. Al and Damien were very professional and the work was extremely well done. They finished that same day and when they left it was if the new units had always been there. I was extremely impressed and will certainly go back to them for future maintenance. You can't go wrong with this company!"
Serving Addison, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Knowledgeable and professional air conditioning service"
+20
Serving Addison, IL and surrounding areas
Approved
In business since 1911
Free estimates
Emergency services offered
"The air conditioner is working fine."
+10
Serving Addison, IL and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"We have a service agreement with them, we are on their premium plan. Yes, I would use them again. They are very punctual and they call you before they arrive. They call and remind you of your heating or air conditioning cleaning before the season comes."
Serving Addison, 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 Addison, 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 Addison, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Ron came out on a Sunday evening of Memorial Day weekend to fix our air conditioner. It was a 95 degree day with more hot days in the forecast. He was at our home within a half hour of our call. He was friendly and professional. He assessed the problem and explained everything before fixing it. He did an excellent job and provided outstanding customer service! This will be our new go to company for any of our air conditioning services."
+7
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.
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