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Find Air conditioning pros in Mount Hermon

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)

Serving Mount Hermon, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"My experience with heating and air conditioning repair, replacement, and new installation was excellent. Their staff was amiable, well-informed, and meticulous. Our device is operating more efficiently than before. Really trustworthy service!"
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+24

Response time3 days
10 neighbors recently requested a quote
Recommended by7%of homeowners
Jim's Air Systems
4.5(
11
)

Serving Mount Hermon, CA and surrounding areas

Approved

In business since 1978

Free estimates

Warranties offered

"Jim's Air Systems had the best value for my dollar. They supplied me with better equipment than they quoted for the same price. They completed the entire installation in about five hours. They protected my floors with tarps and were very careful to protect my walls as they moved equipment in and out. Josh, the son of the original Jim, was on the job working with the other two installers. They performed above my expectations. They left my home and yard as clean as if they had never been there. The new furnace is wonderful and is already saving me money on my P.G. & E. bill. I would recommend Jim's Air Systems unconditionally to anyone in need of a new furnace and AC system. This is a family business that has been supplying and installing systems since 1976. They take personal pride in doing an excellent job. They did not sell me anything that I did not need and provided me with a much cleaner and easier-to-service installation than my existing system. They are the best!"
Response time11 hrs
Response rate97%
79 neighbors recently requested a quote
Avatar for S.C. Home Repair
S.C. Home Repair
4.8(
40
)

Serving Mount Hermon, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Josh did a great job on my roofing repair! He showed up when he said he would, and the roof looks great! He also installed some replacement skylights and siding. He sent many pics of the job as I wasn’t able to be there when the work was performed. I will definitely use him again."
Handyman Services Project
Kitchen Floor, cabinets appliances.
Carpentry, handrails and decks.
Widened closet opening and replaced doors. Added trim around windows and new Luxury Vinyl Plank flooring
Remodeling - General Project

+136

Response time1 day
Recommended by91%of homeowners
Avatar for RGN Heating & Cooling
RGN Heating & Cooling
5.0(
5
)

Serving Mount Hermon, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

RGN Heating & Cooling is 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.\n\n\nAt RGN Heating & Cooling, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business\n

3 neighbors recently requested a quote
Avatar for TRIO Heating, Air & Plumbing
TRIO Heating, Air & Plumbing
5.0(
5
)

Serving Mount Hermon, CA and surrounding areas

Approved

In business since 2021

Credit card accepted

At TRIO Heating, Air & Plumbing, our mission is clear: to provide top-tier heating and air conditioning services while focusing on exceptional customer experiences, employee happiness, and environmental responsibility. We are dedicated to delivering outstanding service that ensures our customers are satisfied and our team is motivated.

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+46

9 neighbors recently requested a quote
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FAQs for air conditioning projects in Mount Hermon, CA

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.

The Mount Hermon, CA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.