Serving Hialeah, FL and surrounding areas
Approved
In business since 1970
Free estimates
Emergency services offered
"A/C technician Christian showed up on time, and took his time to perform diagnosis and explained solutions. He was very friendly and knowledgeable about A/C and I will definitely recommend AMI Air Conditioning for maintenance and repairs of your A/C."
Serving Hialeah, FL and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Emergency services offered
"I am so impressed at 4pm I was looking for someone to fix our air conditioning that my mom is sick and has been in the house getting very irritated and has had a really hard time with the rain and the windows closed. THE A/C SERVICE & MORE company called me the manager her name is Eda she was amazing empathetic to our situation unprofessional to help me get the job done quickly she said to not worry we will be out there today knowing my situation they came out within the hour in the rainy weather and not charge me for after hours and fixed my air conditioning and by 5:30 pm the house was cooling and Jose the techenial was friendly and very professional. This A/C company deserve 6 star****** for going above and beyond! Thank you so much. Rene Gallardo"
+10
Serving Hialeah, FL and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"After getting quotes from a few companies for a new A/C systemI decided to go with Weathershield. Their price was very fair and they were very professional. Air conditioning works great. When the A/C went in an condo I own I called them. They did me a big favor and did the work up in Palm Beach county which is an area they do not usually service. Again, everything went perfectly. The A/C works great. The office manager Christine is a total sweetie and so helpful. Just called them to clean our dryer vent, so happy they provide that service, I wouldn't trust anyone else.... Thanks guys!
"
+1
Serving Hialeah, FL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"I had an amazing experience with Ice City AC. From the first call, they were responsive, professional, and actually showed up on time (which is rare in Miami). They diagnosed the issue quickly and explained everything in a way that made sense—no upselling, no pressure. What really stood out was the honesty. Instead of trying to sell me a whole new system, they fixed the problem and saved me thousands. The work was clean, fast, and done right the first time. You can tell they know what they’re doing. My AC is blowing colder than ever, and the airflow in my house is way better now. If you’re looking for someone reliable, knowledgeable, and fair on pricing, Ice City AC is the real deal. I won’t call anyone else. Highly recommend."
+3
Serving Hialeah, FL and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"They're Pleasant to work with and I am moving and I will more than likely call them to service my air conditioning at the new location"
+9
Serving Hialeah, FL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"The contractor arrived early with all of the parts needed to make this special air conditioner installation a perfect fit where it was needed. I fully recommend this company, because they have great customer service, positive workers, and a great work experience. I am very pleased with their work. Fast and professional. Great work done."
+41
Serving Hialeah, FL and surrounding areas
Approved
In business since 2005
Emergency services offered
Warranties offered
"WeatherShield Air Conditioning has awesome customer service and excellent technicians. Extremely professional, fair prices, I would definitely recommend their services. They are truly deserving of their 5 star rating - You will not be disappointed!"
Serving Hialeah, FL and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"After two years trying to find a good and honest AC technician I think we have found a good one in Nelson. He was knowledgeable, did the job in a timely manner, and didn't try to rip us off with over pricing like most of the others. Thanks Nelson! we'll tell everyone who needs a technician to call you."
Serving Hialeah, FL and surrounding areas
Approved
In business since 2017
Free estimates
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n
Serving Hialeah, FL and surrounding areas
Approved
In business since 2025
Free estimates
Offers commercial services
"⭐️⭐️⭐️⭐️⭐️ We had an excellent experience with Jose and his air conditioning company! He’s professional, honest, and really knows what he’s doing. He responded quickly, explained everything clearly, and made sure the job was done perfectly. Our AC is working great now, and we couldn’t be happier. We’ll definitely call him again and recommend him to everyone!"
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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