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

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Plumbers in Ontario, CA

49 plumbers in Ontario, CA. Every listing checked against the issuer's record, in the published order.

  1. Clear Cloud Solutions Inc

    ActiveC36 Plumbing+2

    Upland, CA · WC ✓ · 6 mi away

    Proof for Clear Cloud Solutions Inc
    License
    CSLB 1000777
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    B General Building; C10 Electrical; C36 Plumbing
    Expires
    Feb 28, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (877) 660-2232
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  2. Cm Plumbing Services Inc

    ActiveC36 Plumbing

    Norco, CA · WC ✓ · 8 mi away

    Proof for Cm Plumbing Services Inc
    License
    CSLB 1056447
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Jul 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Norco, CA · serves California
    Phone
    (833) 934-1101
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  3. Coast Water Systems Inc

    ActiveC55 Water Conditioning

    Fontana, CA · WC ✓ · 8 mi away

    Proof for Coast Water Systems Inc
    License
    CSLB 874705
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C55 Water Conditioning
    Expires
    Mar 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Fontana, CA · serves California
    Phone
    (909) 428-4680
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  4. Cole Scott Plumbing

    ActiveC36 Plumbing

    Eastvale, CA · WC ✓ · 8 mi away

    Proof for Cole Scott Plumbing
    License
    CSLB 758929
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Feb 28, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Eastvale, CA · serves California
    Phone
    (951) 833-8572
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  5. Colucci Plumbing Company

    ActiveC36 Plumbing

    Rancho Cucamonga, CA · WC exempt · 8 mi away

    Proof for Colucci Plumbing Company
    License
    CSLB 1138134
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    May 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Rancho Cucamonga, CA · serves California
    Phone
    (626) 488-0741
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  6. Complete Care Heat AC & Plumbing

    ActiveC36 Plumbing+1

    Norco, CA · WC ✓ · 8 mi away

    Proof for Complete Care Heat AC & Plumbing
    License
    CSLB 1108387
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
    Expires
    Aug 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Norco, CA · serves California
    Phone
    (951) 377-6333
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  7. Complete Plumbing and Rooter

    ActiveC36 Plumbing

    Claremont, CA · WC ✓ · 9 mi away

    Proof for Complete Plumbing and Rooter
    License
    CSLB 906682
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Sep 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Claremont, CA · serves California
    Phone
    (626) 672-6155
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  8. Continental Plumbing Inc

    ActivePrivate motor carrier

    Miraloma, CA · 5 mi away

    Proof for Continental Plumbing Inc
    USDOT registration
    US-DOT 1052366
    Issuer
    US-DOT
    Status
    Active
    Class
    Private motor carrier
    Checked
    Oct 23, 2026
    Where
    Miraloma, CA · serves California
    Phone
    (909) 360-8300
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → US-DOT record
  9. Continental Plumbing Inc

    ActiveC36 Plumbing+4

    Mira Loma, CA · WC ✓ · 5 mi away

    Proof for Continental Plumbing Inc
    License
    CSLB 399073
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C4 Boiler, Hot Water Heating and Steam Fitting; C16 Fire Protection; C34 Pipeline; C36 Plumbing; HAZ Hazardous Substance Removal
    Expires
    Jan 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Mira Loma, CA · serves California
    Phone
    (951) 360-8300
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  10. Coral Reef Plumbing Inc

    ActivePrivate motor carrier

    Jurupa Valley, CA · 10 mi away

    Proof for Coral Reef Plumbing Inc
    USDOT registration
    US-DOT 3026955
    Issuer
    US-DOT
    Status
    Active
    Class
    Private motor carrier
    Checked
    Oct 23, 2026
    Where
    Jurupa Valley, CA · serves California
    Phone
    (951) 316-2565
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → US-DOT record
  11. Coral Reef Plumbing Inc

    ActiveC36 Plumbing

    Jurupa Valley, CA · WC ✓ · 10 mi away

    Proof for Coral Reef Plumbing Inc
    License
    CSLB 908660
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Mar 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Jurupa Valley, CA · serves California
    Phone
    (951) 316-2565
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  12. Cosentino Plumbing

    ActiveC36 Plumbing

    Mira Loma, CA · WC exempt · 5 mi away

    Proof for Cosentino Plumbing
    License
    CSLB 1028362
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Jun 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Mira Loma, CA · serves California
    Phone
    (909) 631-1578
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  13. Cr Plumbing & Drain Cleaning LLC

    ActiveC36 Plumbing

    Fontana, CA · WC ✓ · 9 mi away

    Proof for Cr Plumbing & Drain Cleaning LLC
    License
    CSLB 1149152
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Jan 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Fontana, CA · serves California
    Phone
    (909) 419-9302
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  14. Cruz Plumbing & Rooter Services

    ActiveC36 Plumbing

    Upland, CA · WC ✓ · 6 mi away

    Proof for Cruz Plumbing & Rooter Services
    License
    CSLB 1050063
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Feb 28, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Upland, CA · serves California
    Phone
    (909) 500-8081
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  15. Cryoworks Inc

    ActiveC36 Plumbing

    Jurupa Valley, CA · WC ✓ · 5 mi away

    Proof for Cryoworks Inc
    License
    CSLB 949419
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Jun 30, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Workers' comp on file
    Where
    Jurupa Valley, CA · serves California
    Phone
    (951) 965-0136
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  16. D I Plumbing

    ActiveC36 Plumbing

    Fontana, CA · WC exempt · 9 mi away

    Proof for D I Plumbing
    License
    CSLB 980116
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Jan 31, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Fontana, CA · serves California
    Phone
    (909) 374-0264
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  17. D O T Plumbing and Construction

    ActiveC36 Plumbing+1

    Riverside, CA · WC exempt · 10 mi away

    Proof for D O T Plumbing and Construction
    License
    CSLB 977844
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    B General Building; C36 Plumbing
    Expires
    Jan 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Riverside, CA · serves California
    Phone
    (626) 232-1413
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  18. D & R Plumbing Inc

    ActiveC36 Plumbing+1

    Chino, CA · WC exempt · 5 mi away

    Proof for D & R Plumbing Inc
    License
    CSLB 150458
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    B General Building; C36 Plumbing
    Expires
    Mar 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Chino, CA · serves California
    Phone
    (909) 627-2697
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  19. Danmar Plumbery

    ActiveC36 Plumbing

    Chino Hills, CA · WC exempt · 10 mi away

    Proof for Danmar Plumbery
    License
    CSLB 425631
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C36 Plumbing
    Expires
    Jul 31, 2028
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Chino Hills, CA · serves California
    Phone
    (909) 973-1553
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record
  20. David H Wu

    ActiveC36 Plumbing+1

    Eastvale, CA · WC exempt · 8 mi away

    Proof for David H Wu
    License
    CSLB 1051101
    Issuer
    California Contractors State License Board
    Status
    Active
    Class
    C10 Electrical; C36 Plumbing
    Expires
    Jun 30, 2027
    Checked
    Oct 24, 2026
    Workers' comp
    Exempt: no employees
    Where
    Eastvale, CA · serves California
    Phone
    (626) 227-3457
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → California Contractors State License Board record

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