
Serving Dallas, TX and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"They figured out my air conditioning problem quite quickly. They charged me a very fair price I would definitely use them again"





+1


Serving Dallas, TX and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"They figured out my air conditioning problem quite quickly. They charged me a very fair price I would definitely use them again"





+1

Serving Dallas, TX and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"These guys are awesome!!!! I woke up at 8am Sunday morning in JULY and my AC WAS OUT! I called three other companies and they either did not answer or I left a message. When I called Metro AC Dewayne answered and told me he could have someone out today, he also explained their emergency call service fee of $150.00 but I totally understood since it was Sunday morning. He took my information and told me a technician would call me within the hour. Larry, the technician called me about 15 min later and said he could be there by 1000am. Dewayne called me back about 45 min later to make sure Larry had called me and set up a time. Larry showed up at around 950. I showed him where the compressor was and that it had been running but the fan had not been spinning. He looked at everything and came in and explained he felt it was only the capacitor but it might be the motor. His plan was the replace capacitor and if that didn't work we would change out the motor. He replaced the capacitor, checked the pressures and temps coming out of AC, changed out my air filter (which he did not have to do) and was done by 1100!! Larry was nice and used shoe covers and was very professional! Metro air conditioning will be my new go to AC and heating repair and maintenance shop!!"


Serving Dallas, TX and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Outstanding service from rescue air. I just got my AC serviced and Roman was extremely knowledgeable and helpful. Roman fixed my air conditioning issue with ease. I am very inquisitive and all of the questions I asked were answered professionally. Roman educated me on some aspects of my HVAC system. My wife will be please with me now that we have cold air blowing."





+19

Serving Dallas, TX and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"This Guy is a real pro at what he does! I don't have enough words to express my appreciation with the Job he did in my attic with the air conditioning ducts. Besides being an excellent air conditioning pro he is pleasant and honest. I had interviewed 3 other companies for the Job and I decided to go with him. The minute He went in the attic he asked me all the right questions. Questions to better replace the ducts in my two story condominium. since the air condition unit is in the first floor he needed to find the ducts on the walls in the second floor and figure out where they where. There was a duct that went to my kitchen that has never worked. He figured out that the duct came up the wall trough one of the closets. He opened a small hole on the sheet rock and fished out the duct and connected it with the other one in the attic .My home is actually cool for the first time since I moved in and I have and air condition kitchen."





+13

Serving Dallas, TX and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"4 Seasons was great. They were able to do a repair within a couple of hours of me calling. I had waited all day for another service company to just even get a tech assigned with no idea of expected arrival. 4 Seasons assigned someone immediately and we had air conditioning within a coupe of hours. The technician was very knowledgeable and professional. Highly recommend them!"





+10

Serving Dallas, TX and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Great!! I would highly recommend Southern Air."





+1

Serving Dallas, TX and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Excellent service from start to finish! The technician was knowledgeable, professional, and fixed my AC issue quickly. They arrived on time, explained the repair, and had everything working again in no time. I would definitely use them again and highly recommend them."





+27

Serving Dallas, TX and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Technician David Reyna had great customer service. I recommend and will use Dr. Air & Heat again in the future."




Serving Dallas, TX and surrounding areas
Approved
In business since 2025
Emergency services offered
Warranties offered
"I recently had the pleasure of working with Young and Son for an air conditioning repair project, and I couldn't be more pleased with the service I received. I was referred to the owner, who now operates out of Texas. From the moment he arrived, it was clear that professionalism was a top priority. He communicated effectively throughout the entire process, ensuring that I understood what needed to be done and the costs involved. The pricing was very reasonable, especially given the high quality of Overall, I highly recommend Young and Son for any HVAC needs. So happy to have found you!!!!"





+25

Serving Dallas, TX and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Our 15 year old air conditioning system gave out and so we began to gather quotes. We requested several quotes from home advisor. Prime ac was the only company that showed up on time, performed a full evaluation and had the quotes ready same day. Install was done the next day and everything went great. Thank you for the wonderful experience and treating us like valued customers."

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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