Serving Greenlawn, 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 Greenlawn, NY and surrounding areas
Approved
In business since 2007
Free estimates
Warranties offered
"Provided a fair price for a new Rheem air conditioner condenser and air handler. Price was very competitive. Pleased with the work done. Had several productive conversations with the owner regarding the best fit for our needs and budget (1-stage versus 2-stage; SEER2 rating). Pleased with what we wound up deciding on."
+9
Serving Greenlawn, 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 Greenlawn, NY and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Comfort Ductwork replaced my gas boiler. The price was reasonable and the work was impeccable. When they left, the area where they worked was spotless. I wouldn't hesitate to use them for my heating and air conditioning needs in the future."
+2
Serving Greenlawn, 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 Greenlawn, 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 Greenlawn, 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 Greenlawn, 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 Greenlawn, NY and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Replaced old outside air Condenser and attic Air Handler with new updated equipment and refrigerant. Dan and Joe did incredible job on probably the hottest day of the year and got the job done fast. They were extremely effcient and and showed great professionalism and honesty. They made repairs in the system that they felt was needed to enhance my new system without charging me for the extra work. I'm sure that another installer would not have bothered to do that. They were very respectful of my Home and took great care to be clean and safe. I highly recommend this company."
+4
Serving Greenlawn, NY and surrounding areas
Approved
Super Service Award Winner
In business since 1976
Warranties offered
Small jobs welcome
"The woman who setup all the arrangement for the work on the central air conditioner was very helpful and extremely polite."
+2
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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