you asked:
Plumbers in Ontario, CA
53 plumbers in Ontario, CA. Every listing checked against the issuer's record, in the published order.
Ib Plumbing LLC
Jurupa Valley, CA · WC ✓ · 10 mi away
Proof for Ib Plumbing LLC
- License
- CSLB 1155656
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Jurupa Valley, CA · serves California
- Phone
- (714) 833-6823
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ike's Plumbing Service
Riverside, CA · WC exempt · 10 mi away
Proof for Ike's Plumbing Service
- License
- CSLB 415530
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Riverside, CA · serves California
- Phone
- (951) 687-7653
- Listing
- Built from public records. Not claimed yet, so call them directly.
Indeck Jay Plumbing
Alta Loma, CA · WC ✓ · 7 mi away
Proof for Indeck Jay Plumbing
- License
- CSLB 732557
- 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
- Alta Loma, CA · serves California
- Phone
- (909) 484-3231
- Listing
- Built from public records. Not claimed yet, so call them directly.
Industrial Maintenance Plumbing Service
Alta Loma, CA · WC exempt · 7 mi away
Proof for Industrial Maintenance Plumbing Service
- License
- CSLB 997749
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Alta Loma, CA · serves California
- Phone
- (949) 279-4712
- Listing
- Built from public records. Not claimed yet, so call them directly.
Infinity Backflow & Plumbing Service
Claremont, CA · WC exempt · 9 mi away
Proof for Infinity Backflow & Plumbing Service
- License
- CSLB 1134587
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Mar 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Claremont, CA · serves California
- Phone
- (626) 641-8414
- Listing
- Built from public records. Not claimed yet, so call them directly.
J & a Plumbing Solutions Inc
Upland, CA · WC exempt · 6 mi away
Proof for J & a Plumbing Solutions Inc
- License
- CSLB 1162808
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Upland, CA · serves California
- Phone
- (714) 465-8476
- Listing
- Built from public records. Not claimed yet, so call them directly.
J I G Plumbing Inc
Chino, CA · WC ✓ · 5 mi away
Proof for J I G Plumbing Inc
- License
- CSLB 958469
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Apr 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 354-6855
- Listing
- Built from public records. Not claimed yet, so call them directly.
J M a Plumbing
Riverside, CA · WC exempt · 10 mi away
Proof for J M a Plumbing
- License
- CSLB 1015572
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Riverside, CA · serves California
- Phone
- (951) 729-9175
- Listing
- Built from public records. Not claimed yet, so call them directly.
J R Plumbing
Norco, CA · WC exempt · 8 mi away
Proof for J R Plumbing
- License
- CSLB 795156
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Oct 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Norco, CA · serves California
- Phone
- (714) 818-7468
- Listing
- Built from public records. Not claimed yet, so call them directly.
J T's 35 Dollar Drains
Upland, CA · WC exempt · 6 mi away
Proof for J T's 35 Dollar Drains
- License
- CSLB 869926
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Upland, CA · serves California
- Phone
- (909) 758-6675
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jack Gardner Plumbing
Norco, CA · 8 mi away
Proof for Jack Gardner Plumbing
- USDOT registration
- US-DOT 3222738
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Norco, CA · serves California
- Phone
- (951) 212-9408
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jacuzzi Bath Remodel of California
Chino, CA · WC ✓ · 5 mi away
Proof for Jacuzzi Bath Remodel of California
- License
- CSLB 1151811
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 247-2073
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jaiden's Plumbing Inc
Eastvale, CA · WC exempt · 8 mi away
Proof for Jaiden's Plumbing Inc
- License
- CSLB 827169
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Apr 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Eastvale, CA · serves California
- Phone
- (310) 689-4059
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jimmy D's Plumbing
Pomona, CA · WC ✓ · 9 mi away
Proof for Jimmy D's Plumbing
- License
- CSLB 1128455
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (909) 762-8666
- Listing
- Built from public records. Not claimed yet, so call them directly.
Johnson Greg Plumbing
Montclair, CA · WC exempt · 6 mi away
Proof for Johnson Greg Plumbing
- License
- CSLB 1044760
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Sep 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Montclair, CA · serves California
- Phone
- (310) 968-5825
- Listing
- Built from public records. Not claimed yet, so call them directly.
Johnson's Mechanical
Norco, CA · WC ✓ · 8 mi away
Proof for Johnson's Mechanical
- License
- CSLB 706169
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Norco, CA · serves California
- Phone
- (951) 470-9700
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jt Plumbing & Air Conditioning
Chino Hills, CA · WC ✓ · 10 mi away
Proof for Jt Plumbing & Air Conditioning
- License
- CSLB 966368
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino Hills, CA · serves California
- Phone
- (714) 809-6944
- Listing
- Built from public records. Not claimed yet, so call them directly.
Kasa Construction Inc
Chino, CA · WC ✓ · 5 mi away
Proof for Kasa Construction Inc
- License
- CSLB 927544
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C27 Landscaping; C36 Plumbing
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 457-8260
- Listing
- Built from public records. Not claimed yet, so call them directly.
Kdp Plumbing
Norco, CA · WC ✓ · 8 mi away
Proof for Kdp Plumbing
- License
- CSLB 1118244
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Norco, CA · serves California
- Phone
- (951) 833-3006
- Listing
- Built from public records. Not claimed yet, so call them directly.
King Water Center
Upland, CA · WC exempt · 6 mi away
Proof for King Water Center
- License
- CSLB 671069
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C55 Water Conditioning
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Upland, CA · serves California
- Phone
- (626) 966-5208
- Listing
- Built from public records. Not claimed yet, so call them directly.
More cities in California
Free for people · nobody pays to rank. Run one of these businesses? Claim it free.