Serving communities across Greater Los Angeles

C-20 contractor under CSLB #1143117

info@mistercoolcalifornia.com
Ready to dispatch(323) 770-7737

About Mister Cool California: Licensed HVAC Contractor Serving Greater Los Angeles

Eight trained crews. One call covers all of it.

Mister Cool California is a licensed HVAC contractor: verifiable, bonded, and operating across Greater Los Angeles.

Book a service call Call (323) 770-7737
Mister Cool air conditioning and heating service across Los Angeles
Mister Cool service van with the rear doors open outside a Los Angeles home
8Trained crews, one team
50+Cities across Greater Los Angeles
C-20CSLB License #1143117
2025Built in 2025

Who we are

Mister Cool California is a licensed HVAC contractor: verifiable, bonded, and operating across Greater Los Angeles

We hold California C-20 License #1143117 through the CSLB: the California Contractors State License Board, the state agency that issues and verifies contractor credentials. We are bonded through Nationwide Mutual Insurance Company. Eight trained crews work across the Greater Los Angeles service area, from Long Beach to Riverside, from Santa Monica to San Bernardino. We do residential and commercial HVAC. One call covers all of it.

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Mister Cool technician at an outdoor AC unit at a Los Angeles home

Our story

Mister Cool California was built in 2025 specifically to serve the Greater Los Angeles market

Mister Cool technician servicing a system in Los Angeles
The conditions we work in across the basin every day.

Los Angeles has a particular HVAC challenge most people don't think about until it's 95 degrees. The basin traps heat. Coastal neighborhoods deal with salty, humid air that corrodes outdoor condenser coils faster than inland zones. The Inland Empire gets temperature swings of 40 degrees between morning and afternoon. One service area. Wildly different equipment demands depending on the zip code.

We launched because this market needed a licensed, bonded HVAC company that understands local conditions. A real team, with real credentials you can look up, built to cover the full range of what Greater Los Angeles HVAC requires.

We started with the credentials first. License before the first truck rolled. Bond in place before the first job. That order was intentional.

The team

Eight trained crews across Greater Los Angeles

What we can confirm from verified intake: Mister Cool California operates eight trained crews across Greater Los Angeles. Each crew handles a defined service area within our coverage zone. Crews are equipped for both residential and commercial work: installation, repair, replacement, maintenance, and indoor air quality.

Mister Cool technician on a Los Angeles service call
8Eight trained crews. One team.

Two cities, one day

An eight-person crew means we can be in Pasadena and Long Beach on the same day without stretching thin.

Refrigerant manifold gauge hoses on a condenser unit beside a permit document at a Los Angeles home

Look them up.

Credentials and certifications

Every credential listed here is publicly verifiable

  1. 01
    California C-20 License.

    Warm-Air Heating, Ventilating and Air-Conditioning.

  2. 02
    CSLB License Number: 1143117.

    Searchable at cslb.ca.gov.

  3. 03
    Bonding Company:

    Nationwide Mutual Insurance Company.

  4. 04
    Bond Number:

    7901206616.

  5. 05
    Bond Amount:

    $25,000.

  6. 06
    Bond Effective Date:

    August 25, 2025.

The C-20 license, a California specialty contractor designation, is the credential that legally authorizes work on forced-air heating, ventilation, and air-conditioning systems in this state. It is issued by the CSLB after review. It is not self-reported.

The surety bond is a three-party financial guarantee. It involves the contractor, Nationwide Mutual, and the public. If a contractor fails to complete work or causes financial harm, the bond provides direct recourse. Ours is active and on file.

You don't have to take our word for any of this. The CSLB database is public. The bond is registered. Both are searchable.

Mister Cool technician checking a furnace inside a Los Angeles home

We install and service to California code: no shortcuts, no workarounds.

Our standards

Every job follows the same documented process

  1. 01
    All work performed to Los Angeles County and California building code standards.
  2. 02
    Equipment selected for local conditions: coastal corrosion, Inland Empire heat cycles, and basin-level air quality factors all inform our recommendations.
  3. 03
    Refrigerant handling follows current EPA requirements for the refrigerant types in use across Greater Los Angeles, including systems transitioning away from R-410A.
  4. 04
    Indoor and outdoor equipment matched for the SEER2 efficiency standards required under California Title 24.
  5. 05
    Post-installation checks on every job before crew departure.

Title 24 and permits

Title 24 energy code compliance affects what equipment we can legally install in California. We explain that upfront, before any equipment is selected. See also what homeowners need to know about Los Angeles HVAC permits.

Mister Cool technician finishing a job at a Los Angeles property

Our guarantees

We will not invent terms that weren't confirmed. Equipment manufacturer warranties apply on every installation we complete. We stand behind our workmanship. If you have questions about specific guarantees before booking, call us directly at (323) 770-7737. We'll give you a straight answer.

Ask about your system

Areas we serve

An eight-person crew cover more than 50 cities across Greater Los Angeles

We serve Los Angeles, Beverly Hills, West Hollywood, Culver City, Santa Monica, Burbank, Glendale, Pasadena, Inglewood, Hawthorne, Torrance, Compton, Gardena, Downey, Long Beach, Carson, Lakewood, Redondo Beach, Monterey Park, El Monte, Alhambra, Whittier, San Gabriel, Norwalk, and Baldwin Park. We also cover Orange County communities including Anaheim, Fullerton, Garden Grove, Santa Ana, Huntington Beach, Costa Mesa, Irvine, Orange, Newport Beach, Mission Viejo, Laguna Beach, Lake Forest, and San Clemente. Inland Empire coverage includes Ontario, Rancho Cucamonga, Fontana, San Bernardino, Moreno Valley, Riverside, and Hemet. Ventura County coverage includes Thousand Oaks and Simi Valley.

Call (323) 770-7737

Work with us

Reach us directly: no hold music, no call center.

Call (323) 770-7737 or email info@mistercoolcalifornia.com. If you want to verify our license before you call, look up CSLB #1143117 at cslb.ca.gov. Takes about 30 seconds. We encourage it.

Ready to schedule? Tell us your city and what your system is doing, or not doing. We'll take it from there.

Book a service call Call (323) 770-7737
Mister Cool California service van parked on a Los Angeles street