
Serving Live Oak, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"He knew what to look for and repaired the air conditioner. The charges were less than I expected. Great Service Thanks"





Serving Live Oak, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"He knew what to look for and repaired the air conditioner. The charges were less than I expected. Great Service Thanks"




Serving Live Oak, CA and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"We pay $14/mo. and they automatically come out twice a year. They come in January and check your heater and July and check your A/C. Then you get a discount on any service needed. It's great, they always are good. I think they're kind of expensive but, well they're probably no more expensive than others. It always cost a lot when you have to have repairs done. They are always very responsive when we call. They're always here within the time frame that they give us. Only one time did they call and say they would be later."

Serving Live Oak, CA and surrounding areas
Approved
In business since 2025
Free estimates
Small jobs welcome
"Great company will recommend them to anyone who wants the job done right the first time."

Serving Live Oak, CA and surrounding areas
Approved
In business since 2023
Free estimates
Credit card accepted
"I own a business and had a company come out to fix our air conditioner. They came out 4 times, charged for all those time and the unit still was not working properly. I then decided to try someone else, so I called Thermotech on the referral of a friend. They came out, diagnosed the problem within 10 minutes (it was an old crumbling circuit board), showed me that bad part, ordered it and had it fixed in less than 24 hours. We have not had a single problem since! I was so happy with their service that I ended up using them for my home HVAC system.. I even referred them to a family member and they did a home install of a brand new HVAC system and they were very happy with the price, install, workmanship & fair pricing. Thermotech has found a customer for life with me. I have had so many bad experiences over the years with other companies telling & thermotech has been a game changer."

Serving Live Oak, CA and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"Picked up, delivered, and installed two new sliding glass doors, and removed the old ones. Professional, courteous, intelligent. Will hire again."
Serving Live Oak, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
I'm a HVAC TECHNICIAN. I been doing HVAC for 10 years. I live in Northern California.\n

Serving Live Oak, CA and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"In one visit, Dave completed my "to do" list of small fixes around the house (about 13 tasks - from remounting wire grid (holding up jasmine) on my wood fence that had fallen off, secured shower handle , resolved several caulking issues , revamped a couple of electrical plugs, replaced weatherstripping on kitchen door and added all new baseboards in garage (moving washer/dryer) to something as simple as removing both bathroom fans so I could clean and then re-positioned them (thin mounting wires very difficult to manage in such tight space in ceiling box!) Dave was extremely easy to work with, knowledgeable, and offered great solutions. I will definitely use him again and already working on another list! Thanks, Dave!!"

Serving Live Oak, CA and surrounding areas
Approved
"They were very professional and did an excellent job trimming the bushes and trees. The grass was cut down to the proper height, the law was edged and they cleaned sll the debris. I've retained them for continued service and highly recommend them."

Serving Live Oak, CA and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
When it comes to heating and cooling issues, we're who your neighbors call. Call us today to schedule your service!
Serving Live Oak, CA and surrounding areas
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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