you asked:
Plumbers in Diamond Bar, CA
30 plumbers in Diamond Bar, CA. Every listing checked against the issuer's record, in the published order.
M & J Construction Group LLC
Pomona, CA · WC ✓ · 7 mi away
Proof for M & J Construction Group LLC
- License
- CSLB 876056
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing; C39 Roofing
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Pomona, CA · serves California
- Phone
- (951) 202-3576
- Listing
- Built from public records. Not claimed yet, so call them directly.
Magic Plumber
Chino, CA · WC exempt · 8 mi away
Proof for Magic Plumber
- License
- CSLB 1016433
- 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) 710-3319
- Listing
- Built from public records. Not claimed yet, so call them directly.
Master Plumbers
LA Habra, CA · WC exempt · 9 mi away
Proof for Master Plumbers
- License
- CSLB 983906
- 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
- LA Habra, CA · serves California
- Phone
- (909) 455-6301
- Listing
- Built from public records. Not claimed yet, so call them directly.
Master Rooter Plumbing Service
West Covina, CA · WC ✓ · 8 mi away
Proof for Master Rooter Plumbing Service
- License
- CSLB 513577
- 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
- West Covina, CA · serves California
- Phone
- (626) 338-1181
- Listing
- Built from public records. Not claimed yet, so call them directly.
Matthew Olivas
Covina, CA · WC exempt · 8 mi away
Proof for Matthew Olivas
- License
- CSLB 950208
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Covina, CA · serves California
- Phone
- (626) 506-0450
- Listing
- Built from public records. Not claimed yet, so call them directly.
Maxland Construction
Rowland Heights, CA · WC exempt · 5 mi away
Proof for Maxland Construction
- License
- CSLB 1142592
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Rowland Heights, CA · serves California
- Phone
- (310) 408-9829
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mb Plumbing Services Inc
Brea, CA · WC exempt · 5 mi away
Proof for Mb Plumbing Services Inc
- License
- CSLB 804385
- 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
- Brea, CA · serves California
- Phone
- (714) 863-5486
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mclay Services
Covina, CA · WC ✓ · 8 mi away
Proof for Mclay Services
- License
- CSLB 1156884
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Covina, CA · serves California
- Phone
- (909) 599-5950
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mehra Heater & Boiler Service
West Covina, CA · WC exempt · 8 mi away
Proof for Mehra Heater & Boiler Service
- License
- CSLB 430220
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C4 Boiler, Hot Water Heating and Steam Fitting
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- West Covina, CA · serves California
- Phone
- (626) 688-9032
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mena Carlos
West Covina, CA · WC exempt · 8 mi away
Proof for Mena Carlos
- License
- CSLB 880198
- 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
- West Covina, CA · serves California
- Phone
- (626) 991-7285
- Listing
- Built from public records. Not claimed yet, so call them directly.
Meterman Services Inc
Fullerton, CA · WC ✓ · 10 mi away
Proof for Meterman Services Inc
- License
- CSLB 902074
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C6 Cabinet, Millwork and Finish Carpentry; C10 Electrical; C16 Fire Protection; C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Fullerton, CA · serves California
- Phone
- (714) 680-8601
- Listing
- Built from public records. Not claimed yet, so call them directly.
Meza Freddy Alberto
LA Puente, CA · WC exempt · 7 mi away
Proof for Meza Freddy Alberto
- License
- CSLB 809577
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- LA Puente, CA · serves California
- Phone
- (626) 893-2269
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mg Mechanical & Plumbing LLC
Covina, CA · WC ✓ · 8 mi away
Proof for Mg Mechanical & Plumbing LLC
- License
- CSLB 1160519
- 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
- Covina, CA · serves California
- Phone
- (626) 644-0247
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mg Plumbing
LA Habra, CA · WC exempt · 9 mi away
Proof for Mg Plumbing
- License
- CSLB 1163074
- 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
- LA Habra, CA · serves California
- Phone
- (562) 266-4505
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mikes Plumbing
San Dimas, CA · WC ✓ · 7 mi away
Proof for Mikes Plumbing
- License
- CSLB 1128092
- 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
- San Dimas, CA · serves California
- Phone
- (562) 310-3109
- Listing
- Built from public records. Not claimed yet, so call them directly.
Milli-Kai Residential Construction LLC
Fullerton, CA · WC exempt · 10 mi away
Proof for Milli-Kai Residential Construction LLC
- License
- CSLB 1155590
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B2 Residential Remodeling; C36 Plumbing
- Expires
- May 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Fullerton, CA · serves California
- Phone
- (714) 369-9770
- Listing
- Built from public records. Not claimed yet, so call them directly.
Monroe Diversified Companies Inc
Covina, CA · WC exempt · 6 mi away
Proof for Monroe Diversified Companies Inc
- License
- CSLB 1006269
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Covina, CA · serves California
- Phone
- (909) 356-5557
- Listing
- Built from public records. Not claimed yet, so call them directly.
Mora Alejandro
Pomona, CA · WC exempt · 7 mi away
Proof for Mora Alejandro
- License
- CSLB 957145
- 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
- Exempt: no employees
- Where
- Pomona, CA · serves California
- Phone
- (626) 590-0789
- Listing
- Built from public records. Not claimed yet, so call them directly.
Morgan Plumbing
Glendora, CA · WC exempt · 8 mi away
Proof for Morgan Plumbing
- License
- CSLB 1020151
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C36 Plumbing
- Expires
- Nov 30, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Glendora, CA · serves California
- Phone
- (626) 482-9002
- Listing
- Built from public records. Not claimed yet, so call them directly.
Morpro Construction
Glendora, CA · WC ✓ · 8 mi away
Proof for Morpro Construction
- License
- CSLB 1087401
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C36 Plumbing
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Glendora, CA · serves California
- Phone
- (818) 512-0066
- Listing
- Built from public records. Not claimed yet, so call them directly.
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