Top-rated air conditioning pros.

Get matched with top air conditioning pros in Simi Valley, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Simi Valley

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 Simi Valley, 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
Request Quote
Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"The technician arrived timely, performed the work expertly and the fee for service was reasonable. I would highly recommend this company for air conditioning service. Theresa S. Valencia, Resident"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Request Quote
Efficiency Air, Inc.
4.8(
321
)
Central A/C - Install

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Tim with Efficiency Air out of Ventura, Ca was great. I selected Efficiency Air after receiving three bids. Tim personally bid the job and followed with a second visit when I informed him of my decision to award the bid. Tim was on-site during the entire installatIon. He and his crew replaced my heating and air conditioning units plus new ductwork in less than one day. I was very impressed with his approach to planning the job and executing every aspect efficiently. I would definitely recommend Tim Mitchell to anyone."
A/C Condensers
A/C Condensers
A/C Condensers
A/C Condensers
Canoga Park, Goodman A/C

+50

Response time7 hrs
148 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
Avatar for United Air Heating & Air Conditioning, Inc.
United Air Heating & Air Conditioning, Inc.
5.0(
50
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+5 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"Accommodating. Happy with our installation of an air conditioner."
Level 3 Maintenance
Fan Motor Cleaning
Level 3 Maintenance
before photo of the entire indoor blower & hou
Before photo of Level 2 maintenance on Furnace

+20

Response time3 hrs
Response rate85%
3 neighbors recently requested a quote
Request Quote
Avatar for Belle Air Services
Belle Air Services
4.7(
70
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+6 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"my air conditioner stopped working on a very hot day"
VRV - Multizone Comfort
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Request Quote
Avatar for Highland Air LLC
Highland Air LLC
4.9(
111
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Shai is a very professional, knowledgeable, and courteous technician. He meticulously diagnosed the problem, explained what was not working, and completed the project in two days as parts had to be secured. He arrived as promised, had all the needed materials and tools, focused on the job, and had a good sense of timing. I asked him to return in spring for the air conditioner check."
Condenser
Indoor unit
Before
During
After

+95

Response time4 hrs
Response rate89%
9 neighbors recently requested a quote
Request Quote
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
5.0(
22
)
Central A/C - Service or Repair

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Sayed Haroon was very happy professional and helpful and very informative, I would recommend him for any service and next time if there?s a problem with any of my air conditioning system I?m definitely gonna be dealing with him"
My jobs
My jobs
My jobs
1 neighbors recently requested a quote
Request Quote
Avatar for Active Air Specialist Inc.
Active Air Specialist Inc.
5.0(
9
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

Here at Active Air Specialists, we sustain our business on quality and integrity. With over 20 years of experience we are experts in the Heating and Cooling trade and are committed to quality from the beginning to the end of your project. please call our office @ 888 410 0677 We look forward to earning your business. Give us a call or click to schedule a quote today!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

29 neighbors recently requested a quote
Recommended by44%of homeowners
Request Quote
Avatar for Just Be Cool Supply, LLC
Just Be Cool Supply, LLC
4.9(
42
)
Central A/C - Service or RepairSwamp Cooler - Service or RepairSwamp Cooler - Install or Replace+2 more

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"My AC quit working on Tuesday, Wednesday night I got on Angi! Just Be Cool Supply LLC were the first to call. They came this morning (Thursday) and fixed my AC! AWESOME JUST BE COOL SUPPLY LLC! THANK YOU SO MUCH!!!"
New installation
New installation
HVAC installation
New Ac
New Ac

+11

Response time6 hrs
Response rate97%
12 neighbors recently requested a quote
Request Quote
Avatar for Top Energy Solutions, Inc.
Top Energy Solutions, Inc.
4.9(
62
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+1 more

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Installed a new HVAC system. They were punctual and professional. I'm very pleased."
Roof Replacement - Owens Corning Shingle Roof
New Windows Installation in Hollywood
5 Ton Furnace Replacement
Attic insulation
New Mini Split - Daikin Emura

+87

Response time1 day
Response rate98%
3 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 574

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

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

See all articles