Top-rated air conditioning pros.

Get matched with top air conditioning pros in Chatsworth, 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 Chatsworth

Avatar for Kahn Air Conditioning
Kahn Air Conditioning
5.0(
6
)

Serving Chatsworth, CA and surrounding areas

Approved

In business since 1961

Free estimates

Emergency services offered

Kahn Air Conditioning, Inc., has 57 year of expertise in HVAC. When your looking for dependable service know that we got it. Our team provides options for replacement of your old unit when the time comes, let a pro help find the best system for your needs. Our full service approach will allow you to service and maintain your unit for maximum efficiency year round. Call Kahn Air Conditioning, Inc., today for your professional consultation.

maint condenser
New furnace installation
maint condenser
Old furnace
New condensers

+48

Response time2 hrs
13 neighbors recently requested a quote
Recommended by16%of homeowners
Avatar for Season Control Heating Air Conditioning, Inc.
Season Control Heating Air Conditioning, Inc.
4.7(
113
)

Serving Chatsworth, CA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"The company is top notch professional from the minute we met them. From the contract negotiations, delivery of materials and instillation, they were amazing. The installers gave us good advice about where we thought the unit might go to be placed in a more efficient noise cancelling area. I recommend this company to anyone who has air conditioning needs."
AC New Installation
AC New Installation
AC New Installation
AC New Installation
AC Repair

+14

Response time1 day
Response rate90%
80 neighbors recently requested a quote
Avatar for Candid Heating and Air Conditioning, Inc.
Candid Heating and Air Conditioning, Inc.
4.6(
130
)

Serving Chatsworth, CA and surrounding areas

Approved

In business since 2011

Emergency services offered

Credit card accepted

"Candid Heating and A/C were on time, honest and efficient. My air conditioning was not cooling. They came on the same day and fixed the problem on the spot. Total charge was $119 ($99 for the service call and $20 for a fuse.) They also cleaned my air conditioning unit. I would definitely use again, and definitely recommend their service."
DUCT CLEANING
DUCT CLEANING
Response time1 day
Recommended by99%of homeowners
Avatar for Around The Clock Heating & Air Conditioning, Inc.
Around The Clock Heating & Air Conditioning, Inc.
4.5(
836
)

Serving Chatsworth, CA and surrounding areas

Approved

In business since 1967

Free estimates

Emergency services offered

"Arrived on time and fixed the problem. A bit more expensive than I would have liked but checking around probably not much more than elsewhere and our air conditioner was fixed same day in the middle of a heat wave."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Response time12 hrs
38 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Key Heating & Air Conditioning
Key Heating & Air Conditioning
4.9(
11
)

Serving Chatsworth, CA and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Kelly Wageman was, quite simply, phenomenal. We'd had an Econo-Air service repairman come out and look extensively at our unit, concluding that it was in such bad shape (and installed in '98) , that he would have to call his supervisor to come out and look at it, with a probable outcome of having to replace the entire system--over $10,000. My wife got on line to servicemagicpro and contacted Kelly at Key Heating/Air Conditioning--within a half hour (a night call) he was out from far away in the valley, diagnosed the problem, had replaced THE PART (one part!), which was in his car, and charged us only $310 for the part and $89 for the servic"
Install
Installs
Mini Split
Central Heating
Package Heat Pump

+4

Response time10 mins
Recommended by100%of homeowners
Flo Heating & Air Inc
5.0(
5
)

Serving Chatsworth, CA and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Emergency services offered

Flo Heating & Air is your trusted HVAC contractor in Los Angeles, CA. We provide expert air conditioning, heating, and indoor air quality solutions for homes and businesses. From fast repairs and routine maintenance to energy-efficient system installations, our team delivers reliable service with honest pricing and top-quality workmanship. Whether you need year-round comfort for your family or dependable HVAC solutions for your business, Flo Heating & Air makes it simple. Call today or visit our website to schedule service.

Smart Thermostat
54 neighbors recently requested a quote
Efficiency Air, Inc.
4.8(
320
)

Serving Chatsworth, 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
102 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)

Serving Chatsworth, 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
11 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Help-Me HVAC LLC
Help-Me HVAC LLC
4.9(
12
)

Serving Chatsworth, 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
...
Showing 1-10 of 670

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

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