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
)

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
10 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)

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
6 neighbors recently requested a quote
Recommended by96%of homeowners
Efficiency Air, Inc.
4.8(
320
)

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
142 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Quality Comfort Heating & Air Conditioning
Quality Comfort Heating & Air Conditioning
4.9(
23
)

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Quality Comfort is the BEST! Albert was efficient, effective and knowledgeable about the best way to fix it without breaking the bank. We had 2 other contractors who came out and immediately said we had to replace the entire AC compressor and coil. Several thousands of dollars. Albert and Quality Comfort inspected the system and identified a defective thermostat...that's it! He replaced it and our AC system worked like a charm. He saved us many thousands of dollars. Thank you so much. An HONEST contractor who will be our AC and Heating guy forever....and we will tell all our friends...who would be wise to have Albert and Quality Comfort Heating and Air Conditioning their serviceman too. They are the best!!!"
Ac install
Tune Up Special
Condenser
Fujitsu Heat Pump Condenser
Fujitsu Wall Mount Unit

+1

Response time7 hrs
Recommended by86%of homeowners
Avatar for Highland Air LLC
Highland Air LLC
4.9(
111
)

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"I cannot express in words how trusting and reliable Highland Air is. My AC unit stopped blowing cool air. It was just blowing room temperature air. The last time this happened, I had to pay a ton to get the compressor replaced by another company. That company took advantage of the fact that it was 98 degrees and charged me $3,800 to replace it, knowing that my choices were limited. Shai knew the urgency and to my surprise, he found that it was the capacitor and not the compressor this time. The pricing was more than reasonable, and he was the first to get here out of the many companies that I called. Anyone who has had any work done on their home knows how important it is to trust the companies that you do business with. Shai was able to replace the capacitor within minutes and fix the issue. I will obviously now be a life-long customer."
Condenser
Indoor unit
Before
During
After

+95

Response time4 hrs
Response rate89%
5 neighbors recently requested a quote
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
4.9(
16
)

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
Avatar for Top Energy Solutions, Inc.
Top Energy Solutions, Inc.
4.9(
62
)

Serving Simi Valley, 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."
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%
6 neighbors recently requested a quote
Avatar for S.V. Heating and Air Conditioning
S.V. Heating and Air Conditioning
4.7(
18
)

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1992

Emergency services offered

Warranties offered

"Rob Johnston from SV heating and air conditioning was great. He was very prompt and explained everything he was doing. Very personable . I would highly recommend Rob. Very reasonable with his prices. Thanks !"
change out
change out
Response time3 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 571

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.