Serving Hamden, 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 Hamden, 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 Hamden, CT and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"These guys are awesome. They stayed untill almost midnight trying to figure out what was wrong with my furnace. They was determined to get us heat. I felt bad because, they been there almost all day and I know they wanted to go home. The price was extremely fair compared to the time they spent. I truly appreciate the job they did. Highly recommended"
+4
Serving Hamden, CT and surrounding areas
Approved
In business since 1945
Free estimates
Emergency services offered
"I keep coming back because I am always very pleased with their service and honest advice. They stand behind their work and will respond. even months later, if an issue or a question arises. Tom Mull's staff are very professional, a pleasure to work with and responsive to the CDC/Covid precautions."
Serving Hamden, 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 Hamden, 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 Hamden, CT and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"There was a snag at the beginning when they realized, after beginning to dig, that the AC unit was on top of the oil tank and they'd have to call someone in to move it before digging could continue. That delayed things a few days, but thereafter they did a good job of digging and were very careful with our trees. They also took care not to ruin the lawn with the machinery. The new tank and heater were quickly put in the basement with no problems."
Serving Hamden, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Emergency services offered
"The boiler installation job was done great. I even accepted an annual service plan to keep up with proper maintenance. They are wonderful to work with."
+22
Serving Hamden, CT and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"This service was awesome!! Found some rodents around our unit, helped to clear it out... also cleaned out the mold in our bathroom exhaust fan. Super friendly and the price was really good! I will use them again. A"
+22
Serving Hamden, CT and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"If you are looking for a professional punctual and courteous individual for all your A\C and heating needs, use this company. The best service and attention to detail will be provided. My central air was not cooling, they came out on multiple occasions to troubleshoot the issue and provided us with the best options suited for our needs. Because of this great service, it was only fitting to use them to replace the unit. Go with this company you will not be disappointed."
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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