
Serving Jamul, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"So happy we choose the dryer vent pros, friendly thorough and very knowledgeable. Price worth every penny."





+24


Serving Jamul, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"So happy we choose the dryer vent pros, friendly thorough and very knowledgeable. Price worth every penny."





+24

Serving Jamul, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"PERFECT. Workers were very professional. They work very clean. They work above and beyond."





+55

Serving Jamul, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"I had three top rated heating and air conditioning contractors bid on the installation of air conditioning to my existing heating system. I wanted a quite and efficient two stage ac unit that would work with the variable speed blower in the heating system. Carini was the only contractor that based their bid on a heat load calculation rather than some rules of thumb that tend to oversize the ac system. Their analysis indicated that I needed a three ton unit. The other contractors said that I needed a four or five ton unit, but the blower in the existing furnace and the ductwork would only support a three ton unit. One of the other contractors no bid the job after I said I was not going to install a new furnace and ductwork. The other bidder said they would install a three ton unit but would not guarantee satisfaction. At this point I didn't know who was right. I then contacted my neighbors with AC and the same model home as I have. They all said that they had 3 ton units and we very satisfied. Based on their results I contracted with Carini Heating and Air Conditioning. The installation was planned for one day but actually took 2 and a half days. The installation itself was done in a day and a half but complications with integrating a 2 stage AC unit with a variable speed furnace from another manufacturer required another day to resolve. To his credit, when Jason Baer the project manager found out about the problems integrating the Bryant AC unit with a York furnace he assigned their lead service technician, Anthony DeCarolis to integrate the two units. After several hour of studying both the ac manual and the furnace manual Anthony was able to achieve the expected performance by a combination of DIP switch and jumper setting in both units and the installation of a two stage thermostat. Although I took a few days longer than planned, I am very happy with the overall performance of Carini and my new air conditioner."





+16
Serving Jamul, CA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Cool Air came out the same day. I had no AC for 3 days in 90+ degree. The tech, Leo, immediately new the problem and replaced the part. Had my AC back!! Very knowledgeable with helpful advice."

Serving Jamul, 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 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 has helped us for over 2 years. He is always very prompt, reliable, professional and best of all, he knows his stuff! He has always come same-day for our both heating and air emergencies. We board little and big critters, cats, dogs, lizards, bunnies, birds, you name it and we do not accept them not having the a/c or heat for proper temperature, ventilation and comfort. He has rebuilt our A/C for literally pennies on the dollar helping it last and perform beyond its years and when the time came for a new system (before it went out again and before the sweltering summer), we got a super duper A/C unit at a fantastic price. He gave us new, modern, economical options as well as high performance and low maintenance options and walked us through choosing the right system for us. Juan's connections with local suppliers and work force, had our new chosen unit professional installed within a week. He checked on the system a week later to ensure it was functioning as expected and that we were satisfied with its performance. Juan was impressively knowledgeable about our Apple Nest and Amazon Ecobee smart thermostats, how to program them and how they connected to our phones. (Shout out for the Ecobee that I found much easier better for our purposes.) Juan was never hesitant to help when I called many times struggling with the Nest. (I ultimately returned the Nest but it might work great for a lot of other people) Having functioning AC and Heat is vital to our business and Juan is a very reliable piece of that puzzle. Juan is on our speed dial and he never disappoints!! We recommend Degree Heating and Air for hassle-free, respectful, professional, knowledgeable service."




Serving Jamul, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"Outstanding communication and professionalism. Saul was patient with all my questions and extremely responsive. Bathroom turned out beautifully. Will use them again without hesitation."

Serving Jamul, CA and surrounding areas
Approved
In business since 2023
Free estimates
Small jobs welcome
"Josué was able to fix my furnace and my air conditioner unit. He is incredibly professional and organized and a very honest man. He does his work very well and even gave me really good tips on how to maintain everything in good shape. He knows his work and is very knowledgeable, definitely recommending him to anyone who might need his services !!!"





+14

Serving Jamul, CA and surrounding areas
Approved
In business since 1975
Free estimates
Emergency services offered
"Got a new dryer delivered & it could not be installed due to the dryer vent being full & clogged. Called “Action Air”,was available in 3 days, & it only cost $199."
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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