Serving Hyannis, MA and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"Rick responded quickly and had my air conditioning working efficiently in no time. Good professional service!"
Serving Hyannis, MA and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Matt was prompt and professional and the work he performed was impeccable. We had wall-mounted AC/Heating units installed in a traditional seaside cottage, and he was meticulous about finding non-intrusive ways to run plumbing/electric. He even upgraded to stainless steel hardware considering our corrosive sea air environment. I will recommend him again and again."
Serving Hyannis, MA and surrounding areas
Approved
In business since 2019
Emergency services offered
Warranties offered
"Eli, is very patient with his work, he takes his time to make sure it comes out great!! We are happy for work and for helping us put the appliances together!!! I will highly recommend him to anyone!"
Serving Hyannis, MA and surrounding areas
Approved
In business since 1983
Free estimates
Warranties offered
"Majic Air was awesome. So glad I found them on your website. Thank you!"
+23
Serving Hyannis, MA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"After my experience with Arthur I would try to hire him for my next home heating or air conditioning needs excellent service great modern and efficient equipment, fast response, attention to detail. thanks for helping me out Arthur. Richard B.Pembroke MA."
+2
Serving Hyannis, MA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Bob did a new mini split install for me and I couldn't be happier with the work. He was professional, timely, and had excellent communication. He was also very knowledgeable and made some great recommendations for the project. I'd recommend him to anyone looking for HVAC work."
Serving Hyannis, MA and surrounding areas
Approved
In business since 1944
Free estimates
Emergency services offered
"My electrician from Cotti-Johnson HVAC was a master electrician. If you get him, you are getting the best. I went with the most expensive work package of the 3 that were presented. First off, it was pricey. I knew that going in. I want Cotti-Johnson to understand that I am serious about a working relationship with them. I feel I have done that with their electrical department. Now, if I need their plumbing or HVAC service, our relationship can build off the first experience."
+56
Serving Hyannis, MA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job
Serving Hyannis, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1996
Free estimates
Emergency services offered
"Really clean, organized, they do not leave a mess behind - they are my favorites!"
+16
Serving Hyannis, MA and surrounding areas
Approved (Corporate)
In business since 1984
Free estimates
Emergency services offered
"Quick and efficient work done by Angel Ortiz. He explained the issue and all the work that needed to be done. Definitely recommend ARS for all your heating & air conditioning needs."
+10
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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