Serving Clarkstown, NY and surrounding areas
Approved
In business since 1965
Emergency services offered
Warranties offered
"Very efficient. Found problems I needed to fix immediately. Plumber was very respectful and honest. Would hire again."
Serving Clarkstown, NY and surrounding areas
Approved
In business since 2002
Free estimates
Small jobs welcome
"Changed a compressor for a refrigerator. $750 is a good price ."
Serving Clarkstown, NY and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"We had an amazing experience with this HVAC company! From start to finish, the entire process was seamless, professional, and stress-free. Our AC stopped unexpectedly. They were incredibly responsive and able to schedule us quickly and arrive right on time. The technician Berto was knowledgeable, courteous, and took the time to thoroughly explain what was going on and what needed to be fixed. You can tell they really care about doing the job right, not just rushing through it. The repair was done efficiently, and our AC has been running perfectly ever since. It’s honestly such a relief to find a company that is reliable, honest, and truly skilled at what they do. We will absolutely be using them again for any future HVAC needs and highly recommend them to anyone looking for top-notch service!"
+3
Serving Clarkstown, NY and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
"I was looking for someone to install my ac mini split unit and placed a request on Angiâ s list. I received many responses even from large plumbing companies. Vladi was the most honest of them all. I highly recommend MVM Mechanical. Vladi is excellent, he explained everything that needed to be done during the consultation/quote (Pros and Cons). He did more and kept his quote. Itâ s a 5+ rating for me. I am definitely a long lasting client now."
Serving Clarkstown, NY and surrounding areas
Approved
In business since 2020
Customers say: Quick response
"I highly recommend Jon. Great work and even better service. Quality work delivered on time!"
Serving Clarkstown, NY and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Tony is a prompt professional follow thru worker with support. He comes prepared to resolve the issue and completes the job in a neat, well crafted manner. He is pleasant and fair minded and prices his work well. I would recommend him anyway"
Serving Clarkstown, NY and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Best job and he so clean and perfect so happy I hired Hanee and I would do it again. I highly recommend Hanee to do the job."
Serving Clarkstown, NY and surrounding areas
Approved
In business since 1978
Free estimates
Emergency services offered
"Very expensive but service is good."
Serving Clarkstown, NY and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
At DYETT HVAC PRO CORP. we offer professional heating, ventilation, air conditioning and refrigeration services. We install, repair and perform maintenance on all types of equipment—from walk-in coolers, freezers, display cases and refrigerators to central units, mini-splits, rooftop units and all types of air conditioning systems, as well as any type of heating system, from oil boilers to the most modern high-efficiency models.\n\n
Serving Clarkstown, NY and surrounding areas
Approved
In business since 1996
Free estimates
Emergency services offered
"It was a great experience, Ariel was exceptional. Pricing is very competitive and response time was flawless. Recommended Ariel to my neighbor, and he will be installing a new boiler for them!"
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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