you asked:
Fire sprinkler contractors in Diamond Bar, CA
5 fire sprinkler contractors in Diamond Bar, CA; 569 within 30 miles. Every listing checked against the issuer's record, in the published order.
Hci Systems Inc
Ontario, CA · WC ✓ · 13 mi away
Proof for Hci Systems Inc
- License
- CSLB 905493
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C7 Low Voltage Systems; C10 Electrical; C16 Fire Protection
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Ontario, CA · serves California
- Phone
- (909) 628-7773
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hu Fire Protection Inc
Baldwin Park, CA · WC ✓ · 11 mi away
Proof for Hu Fire Protection Inc
- License
- CSLB 1029990
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Baldwin Park, CA · serves California
- Phone
- (626) 397-9771
- Listing
- Built from public records. Not claimed yet, so call them directly.
Huang Wei Jia
South El Monte, CA · WC exempt · 14 mi away
Proof for Huang Wei Jia
- License
- CSLB 1098165
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- South El Monte, CA · serves California
- Phone
- (626) 423-8063
- Listing
- Built from public records. Not claimed yet, so call them directly.
Hunt's Fire Protection
Fullerton, CA · WC ✓ · 12 mi away
Proof for Hunt's Fire Protection
- License
- CSLB 553703
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C34 Pipeline
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Fullerton, CA · serves California
- Phone
- (714) 915-2074
- Listing
- Built from public records. Not claimed yet, so call them directly.
Immediate Fire Protection Inc
Anaheim, CA · WC ✓ · 11 mi away
Proof for Immediate Fire Protection Inc
- License
- CSLB 1036090
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Sep 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (323) 448-8469
- Listing
- Built from public records. Not claimed yet, so call them directly.
Industrial Piping Systems
Anaheim, CA · WC ✓ · 12 mi away
Proof for Industrial Piping Systems
- License
- CSLB 336917
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C36 Plumbing
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (714) 281-9308
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jam Corp
Monrovia, CA · WC ✓ · 15 mi away
Proof for Jam Corp
- License
- CSLB 791060
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C7 Low Voltage Systems; C10 Electrical; C16 Fire Protection
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Monrovia, CA · serves California
- Phone
- (626) 256-4400
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jb Fire Protection Inc
Anaheim, CA · WC ✓ · 13 mi away
Proof for Jb Fire Protection Inc
- License
- CSLB 647282
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C34 Pipeline; C36 Plumbing
- Expires
- Mar 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (714) 578-0900
- Listing
- Built from public records. Not claimed yet, so call them directly.
Jwj International Powerhouse Inc
Alhambra, CA · WC exempt · 13 mi away
Proof for Jwj International Powerhouse Inc
- License
- CSLB 1114696
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C16 Fire Protection
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Alhambra, CA · serves California
- Phone
- (909) 224-3024
- Listing
- Built from public records. Not claimed yet, so call them directly.
L2 Living Consultation
LA Mirada, CA · WC ✓ · 13 mi away
Proof for L2 Living Consultation
- License
- CSLB 859252
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- LA Mirada, CA · serves California
- Phone
- (213) 820-5084
- Listing
- Built from public records. Not claimed yet, so call them directly.
Lee Fire Protection Inc
Anaheim, CA · WC exempt · 13 mi away
Proof for Lee Fire Protection Inc
- License
- CSLB 682771
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Anaheim, CA · serves California
- Phone
- (714) 632-9381
- Listing
- Built from public records. Not claimed yet, so call them directly.
Lee Simon N
Whittier, CA · WC exempt · 12 mi away
Proof for Lee Simon N
- License
- CSLB 997548
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Jun 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Whittier, CA · serves California
- Phone
- (213) 219-3388
- Listing
- Built from public records. Not claimed yet, so call them directly.
Legion Fire Protection
Anaheim, CA · WC ✓ · 13 mi away
Proof for Legion Fire Protection
- License
- CSLB 1084575
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (714) 980-1093
- Listing
- Built from public records. Not claimed yet, so call them directly.
Li James Chung-Min
LA Puente, CA · WC exempt · 10 mi away
Proof for Li James Chung-Min
- License
- CSLB 457153
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- LA Puente, CA · serves California
- Phone
- (626) 786-5565
- Listing
- Built from public records. Not claimed yet, so call them directly.
Lindley Fire
Anaheim, CA · WC ✓ · 13 mi away
Proof for Lindley Fire
- License
- CSLB 1037930
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; C10 Electrical; C16 Fire Protection; C34 Pipeline
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (714) 535-5761
- Listing
- Built from public records. Not claimed yet, so call them directly.
Lino's Fire Protection Services Inc
Whittier, CA · WC exempt · 12 mi away
Proof for Lino's Fire Protection Services Inc
- License
- CSLB 1006502
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C34 Pipeline; D64 Non-specialized
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Whittier, CA · serves California
- Phone
- (562) 646-9825
- Listing
- Built from public records. Not claimed yet, so call them directly.
Los Angeles Plumbing & Backflow Testing Inc
Irwindale, CA · WC ✓ · 11 mi away
Proof for Los Angeles Plumbing & Backflow Testing Inc
- License
- CSLB 534844
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Irwindale, CA · serves California
- Phone
- (626) 814-0818
- Listing
- Built from public records. Not claimed yet, so call them directly.
Marrone Frank and Sons Inc
El Monte, CA · WC ✓ · 14 mi away
Proof for Marrone Frank and Sons Inc
- License
- CSLB 397884
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C36 Plumbing
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- El Monte, CA · serves California
- Phone
- (626) 444-2548
- Listing
- Built from public records. Not claimed yet, so call them directly.
Matthew Wilson
Orange, CA · WC exempt · 15 mi away
Proof for Matthew Wilson
- License
- CSLB 1073181
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Feb 28, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Orange, CA · serves California
- Phone
- (949) 294-5467
- Listing
- Built from public records. Not claimed yet, so call them directly.
Miguel Flores
Whittier, CA · WC ✓ · 12 mi away
Proof for Miguel Flores
- License
- CSLB 573926
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Whittier, CA · serves California
- Phone
- (626) 665-1323
- 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.