Serving Roslyn, NY and surrounding areas
Approved
In business since 2014
Emergency services offered
Warranties offered
"Responded to my request right away and send Stephen to fix our AC within an hour. He was quick, courteous, and was able to repair our AC the same day. Couldn t be happier and will definitely use them again in the future. Big thank you!"
Serving Roslyn, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Ali came over to our home when we called with a concern of the air flow in our central air conditioning system. He checked the return, the air flow, the temperature at all of the vents, and the entire system. It had more to do with the age of the system and gave us suggestions on how a different filter could increase the air flow. He did all of this and refused to take any money for his time. He is a true honest professional and someone that we would recommend to everyone."
+1
Serving Roslyn, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Arrived on time, got our HVAC system working again, and the price was right!"
+38
Serving Roslyn, NY and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"Wonderful. I called PANDA and they came out in 2 days and did the work in 1. These brothers treat you right and do the right job! They did my central heat repairs 2 1/2 years ago and they were the first ones I called again when the air went and I was right to do so. Thank you Serge and Mark!"
+21
Serving Roslyn, NY and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Just can't say enough good things about this company. I signed a contract they came on time. They installed new residential carrier air conditioning unit. Did a complete clean up when they were done. Everything is working just fine. I would recommend this company if you're considering putting in home air conditioning system."
+2
Serving Roslyn, NY and surrounding areas
Approved
In business since 1991
Free estimates
Customers say: Quality work
"Air conditioner died during a heat wave. John came out the same day to assess the problem. Had to take it for repair, and brought it back sooner than promised. Very happy with service."
Serving Roslyn, NY and surrounding areas
Approved
In business since 2017
Free estimates
Small jobs welcome
"They were great! Family run business who were with us every step of the way. It took us a lot of time to decide on what ductless a/c units we wanted and exactly where we wanted them installed but Keith was so helpful working with our many requests and helping us save money to stay within our budget. Highly recommend these guys."
+3
Serving Roslyn, NY and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"I had the equipment replaced, a brand new, super high efficiency, fancy, lovely stuff. It's a central air system, and it's Lennox equipment. It's high efficiency. You can get it for less than that, but you're not gonna get the high efficiency quiet and all that kind of stuff. I had received other quotes which were like more money for the same system. I have been using them since 1986. No complaints. They do their thing, and I can't fault them. I have a service contract with them for this."
+13
Serving Roslyn, NY and surrounding areas
Approved
In business since 1965
Emergency services offered
Warranties offered
"Very helpful and made sure that the problem was fixed and the air conditioning was running before he left."
+16
Serving Roslyn, NY and surrounding areas
Approved
In business since 1992
Offers commercial services
Customers say: Quick response
"prompt, efficient, knowledgeable excellent service for my central air unit"
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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