you asked:
Plumbers in Diamond Bar, CA
29 plumbers in Diamond Bar, CA. Every listing checked against the issuer's record, in the published order.
Bastanchury Plumbing
Brea, CA · WC exempt · 5 mi away
Proof for Bastanchury Plumbing
- License
- CSLB 597116
- 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
- Brea, CA · serves California
- Phone
- (714) 529-1701
- Listing
- Built from public records. Not claimed yet, so call them directly.
Baxter Bob Maintenance & Construction
West Covina, CA · WC exempt · 8 mi away
Proof for Baxter Bob Maintenance & Construction
- License
- CSLB 295995
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C36 Plumbing
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- West Covina, CA · serves California
- Phone
- (626) 918-7019
- Listing
- Built from public records. Not claimed yet, so call them directly.
Behrco Inc
Placentia, CA · WC exempt · 9 mi away
Proof for Behrco Inc
- License
- CSLB 1033717
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing; C54 Ceramic and Mosaic Tile
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Placentia, CA · serves California
- Phone
- (714) 681-5098
- Listing
- Built from public records. Not claimed yet, so call them directly.
Big Smile Plumbing
Covina, CA · WC ✓ · 7 mi away
Proof for Big Smile Plumbing
- License
- CSLB 1078521
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- ASB Asbestos Certification; B General Building; C36 Plumbing
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Covina, CA · serves California
- Phone
- (510) 470-9990
- Listing
- Built from public records. Not claimed yet, so call them directly.
Blue Grip Squad Inc
Pomona, CA · WC ✓ · 7 mi away
Proof for Blue Grip Squad Inc
- License
- CSLB 978154
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Oct 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (909) 242-5235
- Listing
- Built from public records. Not claimed yet, so call them directly.
Brea Plumbing
Brea, CA · WC ✓ · 5 mi away
Proof for Brea Plumbing
- License
- CSLB 765643
- 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
- Brea, CA · serves California
- Phone
- (714) 529-1034
- Listing
- Built from public records. Not claimed yet, so call them directly.
Bridgerock Construction Inc
Chino, CA · WC ✓ · 8 mi away
Proof for Bridgerock Construction Inc
- License
- CSLB 1094028
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C36 Plumbing
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (951) 531-3007
- Listing
- Built from public records. Not claimed yet, so call them directly.
Brio Water Inc
Hacienda Heights, CA · WC ✓ · 9 mi away
Proof for Brio Water Inc
- License
- CSLB 1112588
- 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
- Hacienda Heights, CA · serves California
- Phone
- (562) 699-9945
- Listing
- Built from public records. Not claimed yet, so call them directly.
Brown Brothers Backflow Testing Inc
Covina, CA · WC exempt · 8 mi away
Proof for Brown Brothers Backflow Testing Inc
- License
- CSLB 1031850
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Covina, CA · serves California
- Phone
- (626) 858-9696
- Listing
- Built from public records. Not claimed yet, so call them directly.
Brycoll
Yorba Linda, CA · WC exempt · 7 mi away
Proof for Brycoll
- License
- CSLB 537431
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Yorba Linda, CA · serves California
- Phone
- (714) 743-8222
- Listing
- Built from public records. Not claimed yet, so call them directly.
C a Plumbing Tech Inc
Chino, CA · WC ✓ · 8 mi away
Proof for C a Plumbing Tech Inc
- License
- CSLB 961720
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (626) 367-0543
- Listing
- Built from public records. Not claimed yet, so call them directly.
C H Plumbing
Chino, CA · WC exempt · 8 mi away
Proof for C H Plumbing
- License
- CSLB 1060528
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Chino, CA · serves California
- Phone
- (951) 965-7624
- Listing
- Built from public records. Not claimed yet, so call them directly.
C M L Plumbing Contractor Inc
West Covina, CA · WC ✓ · 6 mi away
Proof for C M L Plumbing Contractor Inc
- License
- CSLB 932805
- 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
- West Covina, CA · serves California
- Phone
- (626) 962-1838
- Listing
- Built from public records. Not claimed yet, so call them directly.
C & R Commercial & Residential Plumbing Inc
Rowland Heights, CA · WC exempt · 5 mi away
Proof for C & R Commercial & Residential Plumbing Inc
- License
- CSLB 1127351
- 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
- Rowland Heights, CA · serves California
- Phone
- (310) 256-9454
- Listing
- Built from public records. Not claimed yet, so call them directly.
Caliagua Inc
Fullerton, CA · WC ✓ · 10 mi away
Proof for Caliagua Inc
- License
- CSLB 359728
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C4 Boiler, Hot Water Heating and Steam Fitting; C36 Plumbing
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Fullerton, CA · serves California
- Phone
- (866) 416-4214
- Listing
- Built from public records. Not claimed yet, so call them directly.
California Coast Backflows LLC
Yorba Linda, CA · WC exempt · 7 mi away
Proof for California Coast Backflows LLC
- License
- CSLB 1161558
- 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
- Yorba Linda, CA · serves California
- Phone
- (714) 315-4759
- Listing
- Built from public records. Not claimed yet, so call them directly.
Caltex Backflow
Chino Hills, CA · WC exempt · 7 mi away
Proof for Caltex Backflow
- License
- CSLB 1145472
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Chino Hills, CA · serves California
- Phone
- (714) 865-5286
- Listing
- Built from public records. Not claimed yet, so call them directly.
Canfield's Plumbing
San Dimas, CA · WC exempt · 7 mi away
Proof for Canfield's Plumbing
- License
- CSLB 893418
- 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
- San Dimas, CA · serves California
- Phone
- (909) 915-6927
- Listing
- Built from public records. Not claimed yet, so call them directly.
Care One Plumbing Inc
Chino, CA · WC ✓ · 8 mi away
Proof for Care One Plumbing Inc
- License
- CSLB 877335
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 657-2345
- Listing
- Built from public records. Not claimed yet, so call them directly.
Carlson Daren Plumbing
Yorba Linda, CA · WC ✓ · 7 mi away
Proof for Carlson Daren Plumbing
- License
- CSLB 1055500
- 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
- Yorba Linda, CA · serves California
- Phone
- (714) 448-3109
- Listing
- Built from public records. Not claimed yet, so call them directly.
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