Serving Clarkstown, NY and surrounding areas
Approved
In business since 2011
Free estimates
Customers say: Quality work
"Mike and his team are extremely reliable and knowledgeable. Their prices are competitive and their work is exemplary. I will definitely call on their services for any of my future HVAC related needs. I highly recommend!"
Serving Clarkstown, NY and surrounding areas
Approved
In business since 1965
Emergency services offered
Warranties offered
"About what other companies quoted me, but much better service in getting a quote. Work was great."
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 HVAC emergency and this company responded quickly and professionally. They came out promptly, diagnosed the issue right away, and got everything working again in a short amount of time. The technician was knowledgeable, courteous, and explained everything clearly. It was reassuring to have such reliable service during an urgent situation. I highly recommend this company for anyone needing fast and dependable HVAC 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 2014
Free estimates
Emergency services offered
"Central AC swap out was done when I needed it asap. My old unit broke down and Revive showed up right away gave me a great price. They completed everything as they said they would in amazing timing too. I highly recommend Revive!"
Serving Clarkstown, NY and surrounding areas
Approved
In business since 1978
Free estimates
Emergency services offered
"My central air quit during a nasty heat wave and they responded quicklyâ within a few hours a technician arrived that evening, followed shortly by the salesman when I decided to replace instead of repair. The job was scheduled for the very next morning! The installers were on time, friendly and cleaned up the areas. Everyone I dealt with was knowledgeable and professional. Interest-free financing was a huge selling point. Very good experience!."
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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