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Plumbers in Diamond Bar, CA
29 plumbers in Diamond Bar, CA. Every listing checked against the issuer's record, in the published order.
Dynamo Plumbing & Drain Cleaning Inc
West Covina, CA · WC ✓ · 8 mi away
Proof for Dynamo Plumbing & Drain Cleaning Inc
- License
- CSLB 1126934
- 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
- West Covina, CA · serves California
- Phone
- (626) 814-7432
- Listing
- Built from public records. Not claimed yet, so call them directly.
E&A Mason Corporation
Yorba Linda, CA · WC exempt · 7 mi away
Proof for E&A Mason Corporation
- License
- CSLB 1093901
- 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
- Yorba Linda, CA · serves California
- Phone
- (714) 300-5817
- Listing
- Built from public records. Not claimed yet, so call them directly.
E L M Construction Co
LA Puente, CA · WC ✓ · 7 mi away
Proof for E L M Construction Co
- License
- CSLB 901559
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C8 Concrete; C36 Plumbing; D12 Synthetic Products
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- LA Puente, CA · serves California
- Phone
- (626) 917-7247
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ea Construction and Plumbing
Yorba Linda, CA · WC ✓ · 7 mi away
Proof for Ea Construction and Plumbing
- License
- CSLB 856581
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C8 Concrete; C27 Landscaping; C36 Plumbing
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Yorba Linda, CA · serves California
- Phone
- (714) 366-3905
- Listing
- Built from public records. Not claimed yet, so call them directly.
Eagle Air Co
Chino, CA · WC ✓ · 8 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.
Econo Air
Placentia, CA · WC ✓ · 9 mi away
Proof for Econo Air
- License
- CSLB 445220
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C2 Insulation and Acoustical; C10 Electrical; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C46 Solar
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Placentia, CA · serves California
- Phone
- (800) 503-2666
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ed's Soft Water Inc
Placentia, CA · WC exempt · 9 mi away
Proof for Ed's Soft Water Inc
- License
- CSLB 1054525
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C55 Water Conditioning
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Placentia, CA · serves California
- Phone
- (714) 464-6185
- Listing
- Built from public records. Not claimed yet, so call them directly.
Elias Plumbing
Ontario, CA · WC ✓ · 9 mi away
Proof for Elias Plumbing
- License
- CSLB 1105933
- 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
- Ontario, CA · serves California
- Phone
- (840) 977-8909
- Listing
- Built from public records. Not claimed yet, so call them directly.
Elser Plumbing
Glendora, CA · WC exempt · 8 mi away
Proof for Elser Plumbing
- License
- CSLB 892891
- 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
- Glendora, CA · serves California
- Phone
- (626) 963-6767
- Listing
- Built from public records. Not claimed yet, so call them directly.
Empire Plumbing Inc
Ontario, CA · 9 mi away
Proof for Empire Plumbing Inc
- USDOT registration
- US-DOT 3376644
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Ontario, CA · serves California
- Phone
- (909) 559-0968
- Listing
- Built from public records. Not claimed yet, so call them directly.
Enetech Incorporated
Brea, CA · WC ✓ · 5 mi away
Proof for Enetech Incorporated
- License
- CSLB 967408
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration; C46 Solar
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Brea, CA · serves California
- Phone
- (714) 255-2939
- Listing
- Built from public records. Not claimed yet, so call them directly.
Enovative Mechanical and Energy Services
Covina, CA · WC ✓ · 7 mi away
Proof for Enovative Mechanical and Energy Services
- License
- CSLB 1036688
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C38 Refrigeration
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Covina, CA · serves California
- Phone
- (800) 346-6160
- Listing
- Built from public records. Not claimed yet, so call them directly.
Erick Allen Inc
Brea, CA · WC ✓ · 5 mi away
Proof for Erick Allen Inc
- License
- CSLB 630635
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C6 Cabinet, Millwork and Finish Carpentry; C10 Electrical; C17 Glazing; C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Brea, CA · serves California
- Phone
- (714) 524-2406
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ernie's Plumbing
Hacienda Heights, CA · WC exempt · 9 mi away
Proof for Ernie's Plumbing
- License
- CSLB 741070
- 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
- Hacienda Heights, CA · serves California
- Phone
- (626) 840-5332
- Listing
- Built from public records. Not claimed yet, so call them directly.
Euro Investments
Montclair, CA · WC ✓ · 8 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.
Extreme Custom Plumbing
Placentia, CA · WC exempt · 9 mi away
Proof for Extreme Custom Plumbing
- License
- CSLB 759024
- 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
- Placentia, CA · serves California
- Phone
- (714) 390-3445
- Listing
- Built from public records. Not claimed yet, so call them directly.
F W Plumbing Inc
San Dimas, CA · WC ✓ · 7 mi away
Proof for F W Plumbing Inc
- License
- CSLB 879683
- 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
- San Dimas, CA · serves California
- Phone
- (818) 261-4362
- Listing
- Built from public records. Not claimed yet, so call them directly.
Faith Plumbing
Glendora, CA · WC exempt · 8 mi away
Proof for Faith Plumbing
- License
- CSLB 1151816
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Glendora, CA · serves California
- Phone
- (626) 591-5193
- Listing
- Built from public records. Not claimed yet, so call them directly.
Felix Mechanical Inc
LA Habra Heights, CA · WC exempt · 9 mi away
Proof for Felix Mechanical Inc
- License
- CSLB 1116718
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C4 Boiler, Hot Water Heating and Steam Fitting
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- LA Habra Heights, CA · serves California
- Phone
- (213) 305-0336
- Listing
- Built from public records. Not claimed yet, so call them directly.
Fidelity Construction Plumbing Inc
San Dimas, CA · WC exempt · 7 mi away
Proof for Fidelity Construction Plumbing Inc
- License
- CSLB 585042
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C36 Plumbing
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- San Dimas, CA · serves California
- Phone
- (909) 392-4556
- Listing
- Built from public records. Not claimed yet, so call them directly.
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