Serving Wallingford, PA and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Emergency services offered
"They did great job, and even added an extra light fixture in a room where it was needed -- for no extra charge."
+14
Serving Wallingford, PA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"We recently moved into a house built in 1987 with the original air conditioning unit, which constantly ran without stopping. It was a brutal summer, but it was definitely not running properly. Joe came out himself to take a look. He took a look at the entire system and suggested that we service the AC to make it function properly and not constantly run. He also changed the air filter in the furnace. I appreciated the fact that he did not push a new air conditioning system in the house considering the unit we have is 25+ years old. He also gave us a few ideas on how to make our home more energy efficient. He did a great job.
"
+6
Serving Wallingford, PA and surrounding areas
Approved
In business since 1985
Free estimates
Emergency services offered
"Very thorough but offered to sell me a new air conditioner which I didn't need"
+6
Serving Wallingford, PA and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"Eco did a great job! Craig has a lot of experience working on boilers and it showed."
Serving Wallingford, PA and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"I thought they were on the high side. The only problem that I've had with their delivery is, they brought oil when I didn't think I needed it. If I have a full tank in April, I don't them to come out until the fall. I don't have to be here when they deliver the oil, they show up on the day. I don't have an appointment."
Serving Wallingford, PA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1959
Free estimates
Emergency services offered
"The technician Adam couldn't have been more professional and helpful. He arrived on time and was very courteous. He quickly was able to assess the problem and repair it. I'd recommend One Hour Heating and Air Conditioning to anyone looking to install or repair their HVAC system."
Serving Wallingford, PA and surrounding areas
Approved
In business since 2019
Free estimates
Small jobs welcome
"Bosh Home Solutions came out to service my central air, and they were great. The tech Peter was super thorough and actually took the time to explain what he was doing, which I really appreciated. I like knowing what’s going on with my house, and he made it easy to understand. Solid experience all around."
+1
Serving Wallingford, PA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Did not return basement ceiling to original condition."
Serving Wallingford, PA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"The duct cleaning work was not directly done by signature guys as they dont do that kind of work. But it was nice of them to recommend to another person - John Bonella who did the work for us. Pretty good work -- on time, attention to detail and transparent in the cost estimates. Did quote me on the cost which includes all the vents of the home unlike others who charge based on number of vents etc.. Will recommend him."
+20
Serving Wallingford, PA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1966
Free estimates
Emergency services offered
"The technician was very knowledgeable in diagnosing the problem, suggested the part that needed to be replaced, ordered the part and upon my request he returned to complete the job. The heater has been working fine. I will also request this technician for my air conditioning concerns. Thank you Unique!"
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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