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Find Air conditioning pros in Westchester

Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+4 more

Serving Westchester, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Excellent heating and air conditioning repair, replacement, and new installation services! Everything went smoothly and without incident from beginning to end. Before departing, they made sure the system was operating flawlessly, responded quickly, and worked effectively. Excellent service?I heartily recommend them!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Response time3 days
9 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Belle Air Services
Belle Air Services
4.8(
62
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Westchester, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The customer service was outstanding, the team was highly professional and they made sure I was satisfied with every aspect of the work. I would highly recommend Belle Air Services. I am delighted with the mini split system they installed,. They were on time, courteous, professional, very careful of my home and wore masks and shoes covers throughout the day. There was an issue with a confusing an automated text messaging system that told me another person would be coming to my home. But they made up for that by ensuring that everything was correctly installed and ready to go and came back the next day immediately to check that the system was working correctly."
Daikin VRV
My jobs
My jobs
My jobs
My jobs

+6

Response time1 day
186 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Trinity Heating and AC
Trinity Heating and AC
5.0(
10
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or Service

Serving Westchester, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Chris analyzed my entire AC and heating system and explained in detail the pros and cons of performing additional maintenance. I greatly appreciated his description of future potential issues and his recommendations on how to mitigate them. Thank you Chris."
After: brand new furnace with industrial grade filtration system. Re-wrapped ductwork with fiberglass free wrapping and acoustic soundproof closet/return cavity.
After: 2 Stage Variable Speed Furnace installed perfectly!
After: Properly sized, energy efficient, and installed to code.
Before: Homeowner had tried multiple times to get the pilot light ignited.
Before: Old furnace not installed to code.

+31

4 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for SoCal Climate Control - LA
SoCal Climate Control - LA
4.2(
414
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+3 more

Serving Westchester, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Nolan, the owner is the most professional likable guy you could ever talk to. Just a down to earth guy who could write a book about air conditioning. His lead worker, Erin is cut in the same mold. Erin was user friendly. What I liked most about Erin was he was a great listener and communicator. Both are straight shooters and tell it as it is in friendly we re here for you terms. 5 stars for the guys at SC Climate Control. There competitors should learn from these guys."
SoCal Staff
718 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Service All Stars Heating and Air Comfort
Service All Stars Heating and Air Comfort
4.4(
139
)
Central A/C - Service or Repair

Serving Westchester, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The employee that installed my air conditioning were very professional and worked extremely hard for over 12 hours .the tect that come to my home was also very professional and explain everything to me ."
Ductless Systems
Teamwork!
Delivery Truck
Job Done!
Another One!

+2

Response time1 day
Response rate98%
20 neighbors recently requested a quote
Avatar for RELY HVAC LLC
RELY HVAC LLC
5.0(
10
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Westchester, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n

RELY HVAC
WEST HILLS
WEST HILLS
WEST HILLS
WEST HILLS

+1

Response time6 hrs
Response rate100%
9 neighbors recently requested a quote
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Showing 1-10 of 634

FAQs for air conditioning projects in Westchester, 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 Westchester, CA homeowners’ guide to air conditioning services

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