Serving Mountain Pass, CA and surrounding areas
Approved
In business since 2007
Free estimates
Small jobs welcome
"Only firm that realized an upgraded filter system was appropriate for the requested air scrubber. Contracted to have them replace 30 year old HVAC unit and ductwork. Completed project within 7 days of hiring. Highly recommend."
+133
Serving Mountain Pass, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business
Serving Mountain Pass, CA and surrounding areas
Approved (Corporate)
In business since 1947
Free estimates
Credit card accepted
"Water heater was replaced quickly and efficiently. The crew clearly explained everything clearly and were very professionally."
+2
Serving Mountain Pass, CA and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"Great work, family business, Roger and his father Rogelio were both respectful and informative. I was not pressured to buy more products even though suggestions were given. I will definately call them again and will gladly refer them to others. Old fashioned customer service. Check them out!"
+14
Serving Mountain Pass, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
We are veteran owned and operated company that provides residential Heating and Cooling.
Serving Mountain Pass, CA and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"They replaced our air conditioner. They gave us a good deal and helped us get a rebate on our thermostat. Very happy with this company."
+49
Serving Mountain Pass, CA and surrounding areas
In business since 2017
Free estimates
Emergency services offered
"Alanis Air was very knowledgeable and respectful of our needs, We will use them in the future when the need arises. I would recommend them to friends and family."
+10
Serving Mountain Pass, CA and surrounding areas
In business since 1989
Emergency services offered
Credit card accepted
"They sell to you a filter to your furnace that is metal that is supposed to be a strong benefit over the throw away kind. This is kind of controversial. You have to take it out and hose it down. I stopped using it on the advice of my air conditioning installer."
Serving Mountain Pass, CA and surrounding areas
In business since 2006
Emergency services offered
Credit card accepted
My AC Guy goal is to offer the ultimate HOME SERVICE experience by innovatively, reliably and consistently providing the safest and highest quality services and products at a fair price to our customers. To treat all customers, customer’s home, customer’s pets and all belongings with respect. Assist communities, donate to cancer research, and being among the most community-friendly group in the Air Conditioning industry.
+20
Serving Mountain Pass, CA and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"We own a home-based business which relies heavily on our computers operating efficiently. We have had a service contract with another computer repair business for several years. Recently when we were having problems with our computers, we tried contacting our service contractor multiple times. He never responded. Feeling frustrated, I contacted James at North Alabama Technical Services and explained our situation. He instantly came to our rescue. He "cleaned-up" our computers and took care of all the problems we were experiencing. He went above and beyond to help us in our dire time of need. We would strongly recommend James and his company for computer service needs. We have now retained him on a service contract and are looking forward to working with him in the future."
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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