Serving Islip Terrace, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Ali is great. Would use for all my ac needs. Highly recommend."
+1
Serving Islip Terrace, NY and surrounding areas
Approved
In business since 1995
Free estimates
Credit card accepted
"Eric is very responsive when you call... Eric and his crew came on time and replaced our Central Air Conditioning System. We had one issue and they came back immediately and took care of it. Eric has great customer service and did a professional job. We would recommend him highly."
Serving Islip Terrace, NY and surrounding areas
Approved
Free estimates
Offers commercial services
"I contacted Chris on Saturday evening when my central air stopped working. He came to my house on Sunday, which many service people wouldn't do. He was prompt, polite, friendly, knowledgeable, and identified the problem and fixed it quickly. I would feel confident recommending him, and would certainly contact him again if I had any HVAC problem. It's great to find a local self-employed service person who you can rely on."
+23
Serving Islip Terrace, 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 Islip Terrace, NY and surrounding areas
Approved
In business since 2012
Free estimates
Customers say: Quality work
"Vinny and Dillon, are very dependable, and knowledgeable . Got the ductless air conditioning Came to give us an estimate, very thorough in explaining the process ,the installation, everything, I was very impressed, Worked with my schedule to get the job started ,it took 2 days, I was very happy they arrived early, worked all day got it all done and very clean. Very professional and answered all my questions and concerns.. I'm telling everyone I know about NYHVAC CORP..the best part was the time they spent explaining,teaching me about the duckless air conditioning and after the job was done Vinny answered all my questions,and showed me the complete job he did.. very satisfied.."
+54
Serving Islip Terrace, 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 Islip Terrace, NY and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
+13
Serving Islip Terrace, NY and surrounding areas
Approved
In business since 1992
Offers commercial services
Customers say: Quick response
"-came on time - curteous service Answer all question Discussed proble with ac system Duscussed reasonal replacement Curtesy check other ac unit for tune up Through in doing job Checked amp usage of ac Checked wire securely Remove old unit Clean up after job done No argument as reasonable offer Overall satisfied service Would recommand to use again for air condition service"
Serving Islip Terrace, NY and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Overall experience was favorable and pleasant. They were able to quickly assess what was wrong and repair the problem. I highly recommend them!! I used Sure-Fire again on Dec 12, 2017 to resolve an issue with my new Nest Thermostats. They were able to come in and install a Common Power Sharing Wire and resolve my problem. This is the second time I have used them in less than two months. I would highly recommend them!! Courteous and Professional!!!"
+14
Serving Islip Terrace, NY and surrounding areas
Approved
In business since 1952
Free estimates
Warranties offered
"Elm Air completed a very timely job of installing an air conditioning unit with quality, professionalism, and cleanliness. I would definitely recommend them for future jobs."
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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