Serving Union City, NJ and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"They were honest and efficient and know a lot of information about the problem with my central air conditioning repair. I would 100% recommend them and surely use them again in the future."
+107
Serving Union City, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"I recently hired Kyle to service my central air conditioner. What a find!!!! I will absolutely hire him again. He is bright, personable and explains every step of his process. You can tell he is passionate about HVAC, and enjoys his work. He was able to quickly evaluate my system and get it back up and running. My system is old and really needs to be replace but Kyle was able to keep in running for another year... Highly recommend this company"
+23
Serving Union City, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Warranties offered
"I wish there were a rating higher than 5...that's how good they were. Alex S. & Dimitri were professional, courteous, timely and explained every step. I used them to clean out the dryer vent, but will also be hiring this company to clean out the air conditioning vents as well."
+369
Serving Union City, NJ and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Moe and his crew were very knowledgeable and did great work. I will recommend Reem Air to anyone I know who is looking for Heating and Air Conditioning."
+4
Serving Union City, NJ and surrounding areas
Approved (Corporate)
In business since 1903
Emergency services offered
Warranties offered
"I AM BUYING A HEATER SERVICE CONTRACT FROM PETRO THIS YEAR."
Serving Union City, NJ and surrounding areas
Approved
In business since 1999
Emergency services offered
Warranties offered
"Bill fixed a leak, a large pipe needed to be replaced. It went well, this is after I had another plumber come, that just didn't feel right. I will be using Advanced to upgrade my furnace."
+33
Serving Union City, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Credit card accepted
"They came immediately on a holiday for our broken central air. He was honest and despite another HVAC company quoting us THOUSANDS more to replace QNR ordered parts to repair for fraction of cost. Honest, dependable and super nice!"
Serving Union City, 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 City, NJ and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"Miguel and his team are great. I’ve contracted them on multiple occasions for HVAC and mini-split installs, tankless water heater install, ac unit maintenance, power washing my exterior home and more. The team is always on time, do a great install and are very reasonable in terms of pricing. Highly recommend!"
Serving Union City, NJ and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"Both MIke and John were extremely friendly and professional and were able to fit me in the same day. I plan to use them for regular maintenance on my central AC system. Very happy!"
+8
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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