Serving Bethany, CT and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"Very good got the American standard 16 seer. Inside variable speed air handler. Just what we wanted."
+172
Serving Bethany, CT and surrounding areas
Approved
In business since 2018
Free estimates
Small jobs welcome
"The salesman came to our home & was very professional & knowledgeable. We got several quotes but decided to go with this company because of the knowledge of the salesman. The technicians came to install the air conditioning on time, wearing masks, and did a fantastic job. There were no problems whatsoever with the install. They also were very neat & cleaned up after they were done. I definitely would recommend this company!"
+27
Serving Bethany, CT and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Had my furnace cleaned. Price was reasonable. The technician was friendly and prompt. Very sstisfied with choice."
+4
Serving Bethany, CT and surrounding areas
Approved (Corporate)
In business since 1946
Free estimates
Emergency services offered
"Went very well. Tech gave great information on the condition of my unit. As well as provided guidance for upcoming repairs that may be needed."
+6
Serving Bethany, CT and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"I highly recommend Protech. The response was quick and my air conditioner was fixed professionally and I am so glad I called them!"
+4
Serving Bethany, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"I contacted a man I had spoken with last year so it was quick, easy, and painless to get set up. I will have them come out next month to do the first cleaning."
Serving Bethany, CT and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Had a great experience with the 2 guys that came. One looked after the air conditioning system and the other the furnace and thermostat. found them to be knowledgeable, personably, and professional in there dealings."
+22
Serving Bethany, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Emergency services offered
"Frisco mechanics were great. They did an excellent job on my furnace and they stayed later cause they had to go out and get a piece and they came back and got it running properly. I would hire them again. I recommend them to anyone who needs their AC furnace Maintained or repaired. And they are reasonably priced."
Serving Bethany, CT and surrounding areas
Approved
In business since 2002
Emergency services offered
Warranties offered
"I have the Total Mechanical Systems Total Comfort plan. It is wonderful I purchased the Comfort Plan when we installed our HVAC System. This is a great service plan for a reasonable rate. You get check ups on your HVAC, electrical, and plumbing systems.,You also have access to repair services, electricians, and plumbers at a discounted rate. Great overall plan to maintain your home or condo. Recently I had my annual Furnace/HVAC check up. The technician, Marquez, was professional, knowledgeable, and pleasant. Marquez really knew his stuff and explained to me how my furnace works and what the telltale signs are that I might need repairs. Fortunately I have not needed any repairs thanks to their great maintenance plan!"
+78
Serving Bethany, CT and surrounding areas
Approved
In business since 1938
Free estimates
Emergency services offered
"Matt and his team did a fabulous job replacing and installing our oil furnace. He also helped with other issues that we were having with our heating and cooling system for years. Very conscientious, courteous and keeps a the place clean,"
+1
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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