Serving Fredericksburg, VA and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"The technician (Dennis) was very knowledgeable and professional. 2 zone service performed and took time to answer all my questions. I plan to continue to use McCrea for all my heating and air conditioning services/repairs/replacements."
Serving Fredericksburg, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Albert was very prompt in replying to my request for service through Home Advisor. He was also able to repair my air conditioner the very next day. He appeared to be very knowledgable, professional and friendly."
+4
Serving Fredericksburg, VA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Chris answered all of our questions and explained each step he would take to fix the issues we were having with air flow. After the install, everything is working great!"
Serving Fredericksburg, VA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"AMJ Air did an excellent job with my AC repair. The technician arrived on time, quickly diagnosed the issue, and explained everything in a clear and honest way. The repair was completed the same day, and my system has been running perfectly since. Professional, knowledgeable, and easy to work with—I highly recommend AMJ Air for any HVAC needs."
+2
Serving Fredericksburg, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"My house to install HVAC system is in Virginia Beach, Virginia."
+11
Serving Fredericksburg, VA and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Credit card accepted
"They really helped out in a serious bind! Great customer service and install. You wouldn’t even know they had been in our home to install a new furnace and air conditioning units. Highly recommend!"
Serving Fredericksburg, VA and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Pros- Technician was very knowledgeable. Learned some things about HVAC. Also very courteous and friendly. Cons- price was not what was quoted. S"
Serving Fredericksburg, VA and surrounding areas
Approved
In business since 1994
Emergency services offered
Warranties offered
"Our AC broke at the worst time: Memorial Day weekend. We called several emergency repair companies before Dominion Services, but none of their emergency technicians got back to us. We waited for over twelve hours in our hot home for someone to call us back. Finally, we used Home Advisor to contact Dominion Services Heating & Air. We immediately got a call from the company to confirm our appointment! The technician (Tarone?) was at our house within an hour and had the problem fixed in 30 minutes. I could have cried I was so relieved. Excellent service. We will definitely be using them for all of our future HVAC maintenance and services!"
+7
Serving Fredericksburg, VA and surrounding areas
Approved (Corporate)
In business since 1950
Free estimates
Emergency services offered
"This was for semiannual maintenance under contract. Danny performed an excellent job, he has many years of experience. I have used ARS for the heating/air conditioning maintenance for about 35 years. They replaced the equipment about six years ago. It has not failed since replacement."
Serving Fredericksburg, VA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I hire Mr. Edgar to replace my all air conditioner, he was a real profesional , very puntual and very flexible, he even responds my call in the evening, he really care about doing his job both and beyond, in one day he installed the new unit , take the old one and leave my place impeccable. Also he is very honest and charged me a great price , he make the all proceeds very smooth, I will hardly recommend him."
+4
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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