Custom Air Systems

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4505 Industrial St Ste 2E
Simi Valley, CA 93063
+1 (805) 522-2526
http://www.customairsystems.net

Custom Air Systems is a family-owned HVAC company based in Simi Valley, CA, serving both commercial and residential customers throughout the Los Angeles area. With years of experience, they specialize in providing top-notch sales, service, and installation of air conditioning and heating systems. Their team of factory-trained technicians ensures that customers receive the highest quality and attention to detail, delivering value and comfort for every project.

Known for their outstanding customer service, Custom Air Systems is highly recommended by satisfied clients who appreciate their prompt and responsive approach. Whether it's routine maintenance or new installations, their knowledgeable staff ensures dependable and efficient HVAC systems, allowing customers to enjoy a comfortable environment in their homes or businesses. With a commitment to excellence, Custom Air Systems is dedicated to delivering hassle-free and enjoyable experiences for all their clients.

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4.520 reviews
Photo of Billy R.
Billy R.
7/30/2025

I've been working with Denise for years. Custom Air System is the "go to" when it comes to work with people of integrity, who are honest, knowledgeable and highly trained professionals in their...

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Dianne C.
7/25/2024

Hi Jack, Here is the rest of the story, a text I just sent to Paul. I am going to post it on Yelp. Many thanks again. Di The best! I thank you again so much for your visit yesterday! Your...

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Mark H.
12/14/2023

I live in an apartment building with a preferred vendor list. When my unit's HVAC started having problems, I went down the list--the first vendor worked on the HVAC, but the problem persisted....

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Liz B.
5/4/2024

Denise and the staff, especially George the technician were exceptionally helpful. Thanks everyone. You're very much appreciated.

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Francine M.
11/29/2023

Fantastic service! I had an HVAC system installed. Good price and excellent service. They gave me my options, with no pressure to purchase. Denise was wonderful, and Hymie, the installer was so...

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