you asked:
Plumbers in Ontario, CA
49 plumbers in Ontario, CA. Every listing checked against the issuer's record, in the published order.
Del's Plumbing Co
Mira Loma, CA · WC exempt · 5 mi away
Proof for Del's Plumbing Co
- License
- CSLB 932949
- 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
- Mira Loma, CA · serves California
- Phone
- (951) 202-8946
- Listing
- Built from public records. Not claimed yet, so call them directly.
Diamond Pure Water Filtration Inc
Chino, CA · WC ✓ · 6 mi away
Proof for Diamond Pure Water Filtration Inc
- License
- CSLB 1032534
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C55 Water Conditioning
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 295-1364
- Listing
- Built from public records. Not claimed yet, so call them directly.
Direct Leak Detection
Jurupa Valley, CA · WC exempt · 10 mi away
Proof for Direct Leak Detection
- License
- CSLB 700648
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Jurupa Valley, CA · serves California
- Phone
- (909) 260-2936
- Listing
- Built from public records. Not claimed yet, so call them directly.
Divine Remodels and More
Rancho Cucamonga, CA · WC ✓ · 7 mi away
Proof for Divine Remodels and More
- License
- CSLB 889498
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C36 Plumbing
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rancho Cucamonga, CA · serves California
- Phone
- (909) 532-0703
- Listing
- Built from public records. Not claimed yet, so call them directly.
Dp Plumbing & Sewer Inc
Chino, CA · WC exempt · 5 mi away
Proof for Dp Plumbing & Sewer Inc
- License
- CSLB 1041768
- 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, CA · serves California
- Phone
- (800) 277-2792
- Listing
- Built from public records. Not claimed yet, so call them directly.
Drain First Inc
Chino, CA · WC ✓ · 5 mi away
Proof for Drain First Inc
- License
- CSLB 1031534
- 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
- Chino, CA · serves California
- Phone
- (800) 710-3319
- Listing
- Built from public records. Not claimed yet, so call them directly.
Drains and Plumbing 24
Riverside, CA · WC ✓ · 10 mi away
Proof for Drains and Plumbing 24
- License
- CSLB 1089250
- 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
- Riverside, CA · serves California
- Phone
- (951) 275-4728
- Listing
- Built from public records. Not claimed yet, so call them directly.
Duke Plumbing Inc
Upland, CA · WC ✓ · 6 mi away
Proof for Duke Plumbing Inc
- License
- CSLB 430513
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C36 Plumbing
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 981-8200
- Listing
- Built from public records. Not claimed yet, so call them directly.
Dunn Plumbing Heating & Air Conditioning Inc
Rancho Cucamonga, CA · WC ✓ · 10 mi away
Proof for Dunn Plumbing Heating & Air Conditioning Inc
- License
- CSLB 712182
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rancho Cucamonga, CA · serves California
- Phone
- (909) 980-0644
- Listing
- Built from public records. Not claimed yet, so call them directly.
E R Block Plumbing
Riverside, CA · WC ✓ · 10 mi away
Proof for E R Block Plumbing
- License
- CSLB 675567
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Riverside, CA · serves California
- Phone
- (951) 687-4011
- Listing
- Built from public records. Not claimed yet, so call them directly.
Eagle Air Co
Chino, CA · WC ✓ · 5 mi away
Proof for Eagle Air Co
- License
- CSLB 1099959
- 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
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (714) 882-9580
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ecko Plumbing
Fontana, CA · WC exempt · 8 mi away
Proof for Ecko Plumbing
- License
- CSLB 1121472
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Fontana, CA · serves California
- Phone
- (909) 368-3258
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ecotech Services Inc
Pomona, CA · WC ✓ · 9 mi away
Proof for Ecotech Services Inc
- License
- CSLB 988204
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C27 Landscaping; C36 Plumbing
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (626) 788-5652
- Listing
- Built from public records. Not claimed yet, so call them directly.
Elements Plumbing & Water Systems Inc
Riverside, CA · WC ✓ · 10 mi away
Proof for Elements Plumbing & Water Systems Inc
- License
- CSLB 1101318
- 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
- Riverside, CA · serves California
- Phone
- (909) 926-8703
- Listing
- Built from public records. Not claimed yet, so call them directly.
Endo Plumbing Co Inc
Riverside, CA · WC ✓ · 10 mi away
Proof for Endo Plumbing Co Inc
- License
- CSLB 953488
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Riverside, CA · serves California
- Phone
- (951) 934-3039
- Listing
- Built from public records. Not claimed yet, so call them directly.
Endurance Plumbing
Jurupa Valley, CA · WC exempt · 10 mi away
Proof for Endurance Plumbing
- License
- CSLB 1133132
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Jurupa Valley, CA · serves California
- Phone
- (951) 741-6492
- Listing
- Built from public records. Not claimed yet, so call them directly.
Euro Investments
Montclair, CA · WC ✓ · 6 mi away
Proof for Euro Investments
- License
- CSLB 998815
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C55 Water Conditioning
- Expires
- Nov 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montclair, CA · serves California
- Phone
- (909) 621-2826
- Listing
- Built from public records. Not claimed yet, so call them directly.
Evergreen Environment Inc
Riverside, CA · WC ✓ · 10 mi away
Proof for Evergreen Environment Inc
- License
- CSLB 810462
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C10 Electrical; C27 Landscaping; C36 Plumbing; D12 Synthetic Products; D34 Prefabricated Equipment
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Riverside, CA · serves California
- Phone
- (951) 332-2218
- Listing
- Built from public records. Not claimed yet, so call them directly.
Evolution Water & Plumbing Inc
Riverside, CA · WC exempt · 10 mi away
Proof for Evolution Water & Plumbing Inc
- License
- CSLB 1133246
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Riverside, CA · serves California
- Phone
- (714) 984-7862
- Listing
- Built from public records. Not claimed yet, so call them directly.
Excel Plumbing and Rooter
Upland, CA · WC ✓ · 6 mi away
Proof for Excel Plumbing and Rooter
- License
- CSLB 917874
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Upland, CA · serves California
- Phone
- (909) 945-1995
- 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.