Serving Union, NJ and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Extremely friendly staff! They made accommodations to come out same day and were very friendly & knowledgeable. I’ve been using them for every furnace/central air need since I moved into my home in 2018. 10/10 recommended!"
+22
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"My central A/C return in the attic had a clog and Challenger, which is the best Heating and Air Conditioning Corporation in the Universe, came over a day early and so fast and fixed the clog in the A/C return right away. I love this company. My wife, Debra Jean keeps saying she's a Challenger girl for life and she means it. And the costs are so reasonable and I can't thank you enough for coming over a day early to literally save our lives. If you are in the area where Challenger works, look no further, call them. They are wonderful beyond belief."
+11
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Warranties offered
"Now I feel safe turning on the unit after the ducts and the sealing was done and cleaning my air condition and my dryer and bath room filter and my condenser outside and putting a new cover for the vent outside of my dryer. After seeing the pictures it was worth the price."
+369
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Offers commercial services
"Thorough professional, well mannered and respectful, did excellent job doing my air conditioning units, punctual and made sure that all the units are working after installation. Would definitely recommend anyone."
Serving Union, NJ and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Sheldon was prompt arriving within an hour of my call and fixing the air conditioning quickly. He explained all steps of the fix and even showed me where to replace the A/C filters!"
+26
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Emergency services offered
"Elaine S. Rahway, NJ I had two installations done, a furnace and a central air conditioning unit .When I contacted Rob, he sent Mike out the next day he evaluated the situation gave me his advice. I contacted Rob right away to let him know that I would be using his service. So happy I chose SOS, they were prompt and professional. Im pleased with the equipment. Any one asking for their service I would highly recommend SOS"
+170
Serving Union, NJ and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"Rocco is the most honest and sincere businessman. He has full knowledge of my air conditioning and heating units with everything working to its maximum capacity."
+5
Serving Union, NJ and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"So happy to have a good air conditioning system and the service men were very professional."
+17
Serving Union, NJ and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"Our sales rep Matt was great. He explained everything in great detail, Install was fast, next day in fact. Work was done in about 6 hours. They kept the area clean. Purchased both heating unit and AC unit. The price was a little on the high side of the average."
Serving Union, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"Ray came right over and provided a simple Ray cam right away and was able fix to my air conditioner problem, and for a reasonable price. He was very pleasant, informative and easy to work with My system is quite old and won’t last a lot longer but the fix bought me a few years. I would recommend him to anyone?"
+1
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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