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.
Alion Fire Protection
Arcadia, CA · WC exempt · 15 mi away
Proof for Alion Fire Protection
- License
- CSLB 988868
- 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
- Arcadia, CA · serves California
- Phone
- (818) 281-3583
- Listing
- Built from public records. Not claimed yet, so call them directly.
All Counties Fire Protection Inc
Tustin, CA · WC ✓ · 18 mi away
Proof for All Counties Fire Protection Inc
- License
- CSLB 1137942
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Tustin, CA · serves California
- Phone
- (949) 207-8814
- Listing
- Built from public records. Not claimed yet, so call them directly.
Approved Fire Pumps Inc
Corona, CA · WC exempt · 16 mi away
Proof for Approved Fire Pumps Inc
- License
- CSLB 755520
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Oct 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Corona, CA · serves California
- Phone
- (951) 738-9100
- Listing
- Built from public records. Not claimed yet, so call them directly.
Arroyo Plumbing Inc
Arcadia, CA · WC ✓ · 15 mi away
Proof for Arroyo Plumbing Inc
- License
- CSLB 629923
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C36 Plumbing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Arcadia, CA · serves California
- Phone
- (626) 446-5117
- Listing
- Built from public records. Not claimed yet, so call them directly.
Baghouse and Industrial Sheet Metal Services
Corona, CA · WC ✓ · 17 mi away
Proof for Baghouse and Industrial Sheet Metal Services
- License
- CSLB 656068
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C16 Fire Protection; C43 Sheet Metal
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Corona, CA · serves California
- Phone
- (951) 272-6610
- Listing
- Built from public records. Not claimed yet, so call them directly.
Baldy Fire & Safety Inc
Alta Loma, CA · WC ✓ via leasing firm · 16 mi away
Proof for Baldy Fire & Safety Inc
- License
- CSLB 963269
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Covered through an employee leasing firm
- Where
- Alta Loma, CA · serves California
- Phone
- (909) 476-6655
- Listing
- Built from public records. Not claimed yet, so call them directly.
Base Line Fire Protection Inc
Downey, CA · WC ✓ · 19 mi away
Proof for Base Line Fire Protection Inc
- License
- CSLB 995049
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Jul 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Downey, CA · serves California
- Phone
- (562) 291-8252
- Listing
- Built from public records. Not claimed yet, so call them directly.
Bass and Sons Plumbing Company
Garden Grove, CA · WC ✓ · 17 mi away
Proof for Bass and Sons Plumbing Company
- License
- CSLB 270215
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Garden Grove, CA · serves California
- Phone
- (714) 534-5403
- Listing
- Built from public records. Not claimed yet, so call them directly.
Bears Fire Protection
Alhambra, CA · WC exempt · 19 mi away
Proof for Bears Fire Protection
- License
- CSLB 1076186
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Alhambra, CA · serves California
- Phone
- (323) 868-3829
- Listing
- Built from public records. Not claimed yet, so call them directly.
C E M Construction Corporation
Montebello, CA · WC ✓ · 17 mi away
Proof for C E M Construction Corporation
- License
- CSLB 951234
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- A General Engineering; B General Building; C8 Concrete; C12 Earthwork and Paving; C16 Fire Protection; C21 Building Moving/Demolition; C27 Landscaping; C34 Pipeline; C36 Plumbing
- Expires
- Aug 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montebello, CA · serves California
- Phone
- (323) 597-1084
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cal-West Fire Protection Specialist
Santa Ana, CA · 18 mi away
Proof for Cal-West Fire Protection Specialist
- USDOT registration
- US-DOT 3531898
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Santa Ana, CA · serves California
- Phone
- (714) 752-6966
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cal - West Fire Protection Specialist
Santa Ana, CA · WC ✓ · 18 mi away
Proof for Cal - West Fire Protection Specialist
- License
- CSLB 870249
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C34 Pipeline
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Santa Ana, CA · serves California
- Phone
- (714) 497-7227
- Listing
- Built from public records. Not claimed yet, so call them directly.
California Fire Protection and Backflow Inc.
Norco, CA · 16 mi away
Proof for California Fire Protection and Backflow Inc.
- USDOT registration
- US-DOT 6691465
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Norco, CA · serves California
- Phone
- (949) 770-5371
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ccsj Development Inc
Alhambra, CA · WC ✓ · 19 mi away
Proof for Ccsj Development Inc
- License
- CSLB 1045125
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Alhambra, CA · serves California
- Phone
- (626) 446-9417
- Listing
- Built from public records. Not claimed yet, so call them directly.
Champion Fire
Rancho Cucamonga, CA · WC exempt · 15 mi away
Proof for Champion Fire
- License
- CSLB 788711
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Rancho Cucamonga, CA · serves California
- Phone
- (909) 483-9789
- Listing
- Built from public records. Not claimed yet, so call them directly.
Champion Fire Systems Inc
Rancho Cucamonga, CA · WC ✓ · 15 mi away
Proof for Champion Fire Systems Inc
- License
- CSLB 710918
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Aug 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Rancho Cucamonga, CA · serves California
- Phone
- (909) 483-9789
- Listing
- Built from public records. Not claimed yet, so call them directly.
Cl Frontier Fire Inc the
Buena Park, CA · WC ✓ · 16 mi away
Proof for Cl Frontier Fire Inc the
- License
- CSLB 1044552
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Sep 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Buena Park, CA · serves California
- Phone
- (213) 219-3388
- Listing
- Built from public records. Not claimed yet, so call them directly.
Classic Handyman Services
Corona, CA · WC ✓ · 19 mi away
Proof for Classic Handyman Services
- License
- CSLB 1027514
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Corona, CA · serves California
- Phone
- (951) 453-8945
- Listing
- Built from public records. Not claimed yet, so call them directly.
Code Red Fire Inc
Montebello, CA · WC ✓ · 17 mi away
Proof for Code Red Fire Inc
- License
- CSLB 992511
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Montebello, CA · serves California
- Phone
- (323) 726-0982
- Listing
- Built from public records. Not claimed yet, so call them directly.
Confidence Builders
San Marino, CA · WC exempt · 19 mi away
Proof for Confidence Builders
- License
- CSLB 774640
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection
- Expires
- Feb 29, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- San Marino, CA · serves California
- Phone
- (818) 802-1100
- 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.