Serving Lomita, CA and surrounding areas
Approved (Corporate)
In business since 1947
Free estimates
Credit card accepted
"The technician Miguel was very kind nature and was even diagnosed the unit at free of charge. He did recommend to change the capacitors and the unit would lost for another couple of years."
+2
Serving Lomita, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Each person we dealt with at this Belle Aire was amazing and I would use them again!"
Serving Lomita, CA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Very happy with the new installation, replacement, and repair services for heating and air conditioning! The technicians were courteous, well-informed, and on time. They promptly resolved the problem and provided comprehensive explanations. A truly professional and trustworthy crew. Strongly suggested!"
+24
Serving Lomita, CA and surrounding areas
Approved
In business since 2018
Credit card accepted
"Sano Heating & Air Conditioning is backed by over 14 years of industry experience. Patrick Kelley first entered the industry in 2009 after being honorably discharged from the US Marine Corps following two deployments to Fallujah, Iraq. Patrick started as a technician and worked his way up to managing two of the largest heating and air conditioning contractors in Southern California. In 2018 Patrick decided to launch Sano Heating & Air Conditioning\nSano Heating & Air Conditioning was created to bring the friendliest customer service experience to its clients with integrity and precision."
+46
Serving Lomita, CA and surrounding areas
Approved
In business since 2002
Free estimates
Credit card accepted
"Temp Air personnel are responsible, honest, knowledgable, and their customer service is top of the line. They were accommodating with a scheduled that worked for us. Also, the techs that came to our house were professionals and answered all of our questions. I highly recommend them."
+14
Serving Lomita, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Emergency services offered
Warranties offered
"Tyler Jones from All City Plumbing Air and Electrical did a great job replacing a gas valve in our garage. He was friendly and easy to engage with, clearly knowledgeable, and took the time to explain what he was doing. The work was completed efficiently and effectively, and everything was handled professionally from start to finish. I’d definitely recommend Tyler and All City for plumbing and gas-related work."
+42
Serving Lomita, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"I always had airflow issues in my house, I always thought it was normal, until I decided to reach out for help. Mario with CoolPros Heating and Air came out and gave me a free evaluation. He found most of my ducts had holes, and had major air leaks. I decided to replace with him for a great price he gave me. The quality of service and customer experience was beyond my expectations. Thank you. . Coolpros heating and air! I already referred my sister and she’s having her system installed next week!"
+8
Serving Lomita, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Warranties offered
"They show up on time and that is a big plus in my book! Their work is impeccable and cleanup is as well they call and remind me when my service is due their price is good. When they leave, you have a smile on your face and your air conditioning and heating will work or they will find out why not. Highly recommend this company"
+83
Serving Lomita, CA and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"I highly recommend Top Energy Solutions. During the heat wave my air conditioning system blew out hot air. I expected to wait days for a technician to come out. Leor sent one the next morning. The technician quickly located the problem and fixed it within minutes. Their employees are professional, courteous and very knowledgeable."
+87
Serving Lomita, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Emergency services offered
"Gordon, is efficient, friendly and great prices. He went above and beyond to help me in an emergency when my air-conditioning broke down on a very hot day. Excellent customer service."
+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.
Use this guide to budget for roof repair costs based on factors such as roof condition, materials, size, repair type and severity, and more.
Need fascia and soffit repairs? Hiring a pro ensures proper installation, protects against pests, and prevents structural damage. Learn about common warning signs, material options, and how fascia and soffits safeguard your home from moisture.
Learn how to budget for a new fence by exploring cost factors such as the fence size, height, posts, gates, style, and labor requirements.
Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.
Discover how much HVAC repairs cost based on the extent of damage, components that require replacement, and labor rates.
Budget for gas furnace costs based on factors such as size, climate, energy efficiency, furnace type, fuel source, labor, and more.