Serving Lamont, CA and surrounding areas
Approved
In business since 1993
Emergency services offered
Warranties offered
"So far so good. They were informative, professional, and we have cool air again on a 105-degree day. I would have liked to pay less, but LaVerne and Son seemed to be the most reasonable for the equipment and level of service they provided. They were pleasant to work with."
Serving Lamont, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1993
Free estimates
Small jobs welcome
"Mr. Hernandez did excellent work. My air conditioning unit is installed securely. Thank You."
+21
Serving Lamont, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Don was here early and didn’t waste any time getting to work. He was pleasant and knowledgeable. He explained my options and got right to work once we agreed."
Serving Lamont, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"he fixed my roof and did a really good job would recommend 100%"
Serving Lamont, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"He did a very thorough job and his prices were very reasonable"
+13
Serving Lamont, CA and surrounding areas
Approved
Martinez HVAC Services provides reliable heating, ventilation, and air conditioning solutions for residential and commercial customers. We specialize in keeping your home or business comfortable year-round with high-quality service, honest pricing, and expert workmanship.
Serving Lamont, CA and surrounding areas
In business since 2008
Credit card accepted
"Our part of the country is having a BIG heat wave. There was a high demand for air conditioning servicing. Arron and his assistant, Joe, came and did the needed repairs quickly and left no debris behind. I was very pleased with their work and professionalism."
Serving Lamont, CA and surrounding areas
In business since 2025
Free estimates
Emergency services offered
"Great job! So happy with their service. Everything is working well. The entire crew was very friendly and did not leave until they knew it was working correctly. I would hire them again!"
Serving Lamont, CA and surrounding areas
In business since 1993
Free estimates
Credit card accepted
"Heat was fast, efficient and nice....showed me what was leaking then fixed the problem.... Also gave me tips on how to save on my bill...."
Serving Lamont, CA and surrounding areas
In business since 2024
Free estimates
Emergency services offered
"Balance Air exceeded our expectations with their dedication and expertise. We are grateful for the opportunity to work with such a professional team that delivered top-tier service in the field. Since their visit, our AC has run flawlessly, and we’ve had no issues. Keep up the excellent work! I would readily recommend Balance Air to anyone seeking air conditioning service or replacement."
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.
Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.
Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.
Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.
Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.
Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.