Serving Mahwah, NJ 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 Mahwah, NJ and surrounding areas
Approved
In business since 1958
Free estimates
Emergency services offered
"I have used Speer Air for several years for HVAC preventive maintenance at my home. We recently expanded and they installed a package unit to take care of the expansion space. The work was good and they have been back for adjustments as necessary."
Serving Mahwah, NJ 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 Mahwah, NJ and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Must use for air conditioning"
+17
Serving Mahwah, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"Great job under very difficult roofing conditions. Would recommend him for any future work."
+23
Serving Mahwah, NJ 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 Mahwah, NJ and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Excellent and professional work. Will definitely recommend ABCastello. So happy he was able to come out the same day I needed service with my air conditioner unit. Great job! Thank you!"
+24
Serving Mahwah, 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 Mahwah, NJ and surrounding areas
Approved
In business since 1965
Credit card accepted
Customers say: Quality work
"The serviceman fully explained the problem to me. the furnace enacted a safety feature and turned it self off. He showed me how to fix it myself in the future. He offered to clean and tune it up while he was there for a reasonable price. Good work. Thanks"
Serving Mahwah, NJ and surrounding areas
Approved
In business since 2000
Emergency services offered
Warranties offered
"I have never written a review but today it was a MUST. This morning my A.C. was not working I messaged AAA HVAC and within minutes a gentleman "JOE" called me. I explained my air conditioner was not working and with 1/2 hour a young man named "Jay" was he. He was polite, courteous and explained everything to me. NOT ONLY IS THIS COPANY OUTSTANDING BUT, ANYONE LIVING IN THE TRI STATE ARE LOOK NO FURTHER THAN "AAA HVAC FOR EXCELLANT WORK AND TOTALLY PROFESSIONAL. DO NOT HESITATE TO ALL THEM.!!!!!!!! THEY ARE AMAZING. "JOE, AGAIN THANK YOU FOR ALL YOUR HELP, AND TRULY YOU WERE SENT DOWN FROM HEAVEN. !!!!!!!! STAY SAFE AND PRAYERS ARE WITH YOU ALL. AGAIN THANK YOU......"
+12
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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