
Serving Jamul, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"Very professional cleaning of dryer vent and air ducts."





+24


Serving Jamul, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"Very professional cleaning of dryer vent and air ducts."





+24

Serving Jamul, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"This company is great. We were lucky enough to get Sean as our representative. We interviewed 4 companies and Sean was by far the most knowledgeable, friendly and professional. He gave us information and tips the other reps never mentioned-info the other reps missed that were unique to our home. The day of the work, Sean was there leading his men and ensuring all went well. They kept the home clean and it has made a huge difference already. Today is warm and it feels comfortable in my living area whuch used to be the hottest in the house. I also feel the air is cleaner and safer with the ducts sealed. Thanks, Sean and your company for all you have done for us. Good price, too!"





+55

Serving Jamul, CA and surrounding areas
Approved
In business since 2006
Free estimates
Credit card accepted
"Five Star Air Conditioning truly lives up to its name. From the moment I reached out through fivestaracsd.com, their team was incredibly responsive and friendly, scheduling service almost immediately. The technician arrived on time, was professional, and took great care to keep everything clean and organized. What stood out most was their honesty and expertise—they clearly explained the issue and offered practical solutions without any pressure. The repair was completed quickly and efficiently, and my system has been running perfectly ever since. If you’re looking for fast, reliable service with a personal touch, Five Star Air Conditioning is an easy choice. Highly recommend!"

Serving Jamul, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"They came, they diagnosed the problem (which wasn't in the air conditioning), they told me how to fix it, and then they left...after having refused payment!!!!! i thought i must be living in the 1950's in a small town!!"





+16

Serving Jamul, CA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"We had our a/c and furnace replaced with a Allied heatpump and variable speed air handler for a great price. I couldn't be happier. Javier and his sons are professional, prompt, and thorough. I would definitely recommend Cano Heating And Air conditioning to all my friends and family."





+49
Serving Jamul, CA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Vadim, the owner of the company, showed up right on time, explained what was wrong, exactly what he could do to solve the problem with our furnace and what it would cost. He took care of the situation over the course of the next 45 minutes and the furnace is running again as it should. We would highly recommend Cool Air to anyone looking for repairs or advice as to what they their options are for taking care of problems with air conditioning or furnace concerns. Vadim was professional, courteous and efficient."

Serving Jamul, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"I had hired them come to clean my dryer vents, but this was not the problem. When they took pictures of the vent, it was obvious that it was not clogged. They did clean the vents but did not fix the problems with the dryer which would be keeping hot air. I wish I was advised that this was not the problem and this was not needed before hand"





+25

Serving Jamul, CA and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Juan from Degree Heating and Air did a very good job. He worked efficiently and thoroughly. He was very respectful and considerate in his interactions with myself and my family."




Serving Jamul, CA and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality and customer service that we provide to meet your 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Serving Jamul, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"Sal was on time every day. He always left the work site in excellent condition. It was a pleasure to work with this company."
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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