Serving Pleasant Hill, CA and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"The technician from Smart Heating&Air Condition Service was extremely knowledgeable of the situation. Also very courteous.. I would recommend them to anyone requiring service for A/C service."
Serving Pleasant Hill, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"We chose repair of a very old air conditioning unit due to the cost of a new unit. It is working now but we have no guarantee of for how long. Global responded quickly and repaired the unit within hours."
+9
Serving Pleasant Hill, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"I bought my heating and air conditioning systems through Perfect Star, and use them for a heating, and an air conditioning tune up each year. They work is exceptional, as are the employees. I have recommended perfect star to friends, who all were more than satisfied."
+8
Serving Pleasant Hill, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1991
Free estimates
Emergency services offered
"Great team. While the job is messy as they have to work under your house. Aire Serv was great to work with. We needed new ducts and boots and my house is now moving air better than it has in twenty years. Highly recommend Aire Serv."
+58
Serving Pleasant Hill, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Emergency services offered
"He was on time, very efficient, and pleasant . Best of all our air conditioning is now working!"
+3
Serving Pleasant Hill, CA and surrounding areas
Approved
In business since 2014
Free estimates
Small jobs welcome
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our major focus is on the quality our work and producing outstanding results. We are committed to creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!\n
+36
Serving Pleasant Hill, CA and surrounding areas
Approved (Corporate)
In business since 1981
Free estimates
Warranties offered
"Said fixed the leaking pump but noted that there were some hazardous conditions caused by the way the unit was originally installed. Suggested that I call PG&E for a safety inspection. Did so and they confirmed that there were indeed small gas leaks due to faulty and ancient installations. PG&E did repairs and I am getting proposal for repair of the 90 year old gas lines. Really appreciate Said's thoroughness and honesty. Could not recommend anyone more highly!
"
+73
Serving Pleasant Hill, CA and surrounding areas
Approved
In business since 1978
Free estimates
Warranties offered
"Jim's Air Systems had the best value for my dollar. They supplied me with better equipment than they quoted for the same price. They completed the entire installation in about five hours. They protected my floors with tarps and were very careful to protect my walls as they moved equipment in and out. Josh, the son of the original Jim, was on the job working with the other two installers. They performed above my expectations. They left my home and yard as clean as if they had never been there. The new furnace is wonderful and is already saving me money on my P.G. & E. bill. I would recommend Jim's Air Systems unconditionally to anyone in need of a new furnace and AC system. This is a family business that has been supplying and installing systems since 1976. They take personal pride in doing an excellent job. They did not sell me anything that I did not need and provided me with a much cleaner and easier-to-service installation than my existing system. They are the best!"
Serving Pleasant Hill, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"I recently had a new air conditioning system installed, and I couldn?t be happier with the entire process. From the initial consultation to the final installation, everything was handled professionally and efficiently. The team arrived right on time, explained all my options clearly, and helped me choose the best system for my home and budget. The installation was completed faster than I expected, and they made sure everything was clean and working perfectly before they left. Thank you for a job well done!"
+4
Serving Pleasant Hill, CA and surrounding areas
Approved
In business since 1953
Free estimates
Warranties offered
"Replaced furnace and added air conditioning. Great experience from beginning to end. Highly recommend ABC."
+17
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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