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NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors

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Heating and air conditioning in Diamond Bar, CA

33 heating and air conditioning in Diamond Bar, CA. Every listing checked against the issuer's record, in the published order.

  1. Globaltech Inc

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Chino Hills, CA · WC ✓ · 7 mi away

    Proof for Globaltech Inc
    License
    CSLB 1069742
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Oct 31, 2026
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Chino Hills, CA · serves California
    Phone
    (949) 828-5656
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  2. Godoy A/C & Heating

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    LA Puente, CA · WC ✓ · 7 mi away

    Proof for Godoy A/C & Heating
    License
    CSLB 974094
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Jun 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    LA Puente, CA · serves California
    Phone
    (213) 447-5322
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  3. Gonzalez Cooling Inc

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    City of Industry, CA · WC ✓ · 7 mi away

    Proof for Gonzalez Cooling Inc
    License
    CSLB 1085858
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Jan 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    City of Industry, CA · serves California
    Phone
    (909) 837-0086
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  4. Graphic Air

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Chino, CA · WC ✓ · 8 mi away

    Proof for Graphic Air
    License
    CSLB 824334
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Sep 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Chino, CA · serves California
    Phone
    (909) 548-0652
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  5. Graves Richard E

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Yorba Linda, CA · WC ✓ · 7 mi away

    Proof for Graves Richard E
    License
    CSLB 508341
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Apr 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Yorba Linda, CA · serves California
    Phone
    (714) 240-2743
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  6. Green Power Air Controls Inc

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning+1

    Hacienda Heights, CA · WC ✓ · 9 mi away

    Proof for Green Power Air Controls Inc
    License
    CSLB 899104
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning; C38 Refrigeration
    Expires
    Aug 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Hacienda Heights, CA · serves California
    Phone
    (626) 641-0427
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  7. Guy's Heating & Air Conditioning Inc

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    West Covina, CA · WC ✓ · 6 mi away

    Proof for Guy's Heating & Air Conditioning Inc
    License
    CSLB 1003750
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Mar 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    West Covina, CA · serves California
    Phone
    (626) 864-3237
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  8. H J Western Inc

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning+1

    West Covina, CA · WC ✓ · 6 mi away

    Proof for H J Western Inc
    License
    CSLB 989946
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning; D28 Doors, Gates and Activating Devices
    Expires
    Jan 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    West Covina, CA · serves California
    Phone
    (626) 922-6896
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  9. H L M Inc

    ActiveB General Building+2

    Montclair, CA · WC exempt · 8 mi away

    Proof for H L M Inc
    License
    CSLB 950133
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    B General Building; C27 Landscaping; C43 Sheet Metal
    Expires
    Jul 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Montclair, CA · serves California
    Phone
    (909) 938-2615
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  10. H P Mechanical Inc

    ActiveC10 Electrical+1

    San Dimas, CA · WC ✓ via leasing firm · 7 mi away

    Proof for H P Mechanical Inc
    License
    CSLB 856371
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C10 Electrical; C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Mar 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Covered through an employee leasing firm
    Where
    San Dimas, CA · serves California
    Phone
    (909) 821-0151
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  11. H R Plumbing

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning+1

    Pomona, CA · WC ✓ · 7 mi away

    Proof for H R Plumbing
    License
    CSLB 398698
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
    Expires
    Jan 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Pomona, CA · serves California
    Phone
    (323) 394-2411
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  12. H V a C Guys the

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    LA Habra, CA · WC ✓ · 9 mi away

    Proof for H V a C Guys the
    License
    CSLB 1016975
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Aug 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    LA Habra, CA · serves California
    Phone
    (562) 315-9243
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  13. H V a C Mechanical Inc

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Placentia, CA · WC ✓ · 9 mi away

    Proof for H V a C Mechanical Inc
    License
    CSLB 682002
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Aug 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Placentia, CA · serves California
    Phone
    (714) 937-5305
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  14. H V a C Mechanical Services

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Yorba Linda, CA · WC ✓ · 7 mi away

    Proof for H V a C Mechanical Services
    License
    CSLB 1040089
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Aug 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Yorba Linda, CA · serves California
    Phone
    (951) 387-2381
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  15. H V a C Republic

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Pomona, CA · WC ✓ · 7 mi away

    Proof for H V a C Republic
    License
    CSLB 1067928
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Aug 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Pomona, CA · serves California
    Phone
    (909) 438-7271
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  16. Harbor Pointe Air Conditioning & Control Systems Inc

    ActiveC4 Boiler, Hot Water Heating and Steam Fitting+2

    Placentia, CA · WC ✓ · 9 mi away

    Proof for Harbor Pointe Air Conditioning & Control Systems Inc
    License
    CSLB 683516
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C4 Boiler, Hot Water Heating and Steam Fitting; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C38 Refrigeration
    Expires
    Dec 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Placentia, CA · serves California
    Phone
    (657) 275-9188
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  17. Harry Pro Services

    ActiveB General Building+8

    Fullerton, CA · WC ✓ · 9 mi away

    Proof for Harry Pro Services
    License
    CSLB 764272
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    B General Building; C4 Boiler, Hot Water Heating and Steam Fitting; C7 Low Voltage Systems; C10 Electrical; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration; D28 Doors, Gates and Activating Devices
    Expires
    Jun 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Fullerton, CA · serves California
    Phone
    (714) 240-0500
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  18. Hawaiian Air

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Fullerton, CA · WC ✓ · 10 mi away

    Proof for Hawaiian Air
    License
    CSLB 299279
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Nov 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Fullerton, CA · serves California
    Phone
    (714) 879-8141
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  19. Heda Mechanical

    ActiveB General Building+1

    Covina, CA · WC ✓ · 6 mi away

    Proof for Heda Mechanical
    License
    CSLB 1046639
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    Nov 30, 2026
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Covina, CA · serves California
    Phone
    (626) 388-6668
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  20. Hempel Air

    ActiveC20 Warm-Air Heating, Ventilating and Air-Conditioning

    Covina, CA · WC ✓ · 7 mi away

    Proof for Hempel Air
    License
    CSLB 619827
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning
    Expires
    May 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Covina, CA · serves California
    Phone
    (626) 331-4022
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record

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