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.
Milestone Building Solutions Inc
Chino, CA · WC ✓ · 11 mi away
Proof for Milestone Building Solutions Inc
- License
- CSLB 1105148
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C10 Electrical; C16 Fire Protection; C36 Plumbing
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Chino, CA · serves California
- Phone
- (909) 393-9798
- Listing
- Built from public records. Not claimed yet, so call them directly.
Next Level Plumbing and Construction Inc
El Monte, CA · WC ✓ · 12 mi away
Proof for Next Level Plumbing and Construction Inc
- License
- CSLB 862260
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Oct 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- El Monte, CA · serves California
- Phone
- (626) 216-9064
- Listing
- Built from public records. Not claimed yet, so call them directly.
Orange County Fire Protection
Orange, CA · WC ✓ · 12 mi away
Proof for Orange County Fire Protection
- License
- CSLB 326604
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C7 Low Voltage Systems; C10 Electrical; C16 Fire Protection
- Expires
- Dec 31, 2026
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Orange, CA · serves California
- Phone
- (714) 974-9025
- Listing
- Built from public records. Not claimed yet, so call them directly.
Ortiz Fire Protection
Anaheim, CA · WC ✓ · 11 mi away
Proof for Ortiz Fire Protection
- License
- CSLB 869383
- 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) 630-0950
- Listing
- Built from public records. Not claimed yet, so call them directly.
Positive Plumbing Inc
Glendora, CA · WC exempt · 11 mi away
Proof for Positive Plumbing Inc
- License
- CSLB 540754
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- May 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Glendora, CA · serves California
- Phone
- (626) 444-4607
- Listing
- Built from public records. Not claimed yet, so call them directly.
Preferred Fire Systems Inc
LA Verne, CA · WC ✓ · 11 mi away
Proof for Preferred Fire Systems Inc
- License
- CSLB 1137874
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Jul 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- LA Verne, CA · serves California
- Phone
- (909) 323-3129
- Listing
- Built from public records. Not claimed yet, so call them directly.
Premium Fire & Safety Services
LA Puente, CA · WC ✓ · 10 mi away
Proof for Premium Fire & Safety Services
- License
- CSLB 1103943
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Apr 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- LA Puente, CA · serves California
- Phone
- (626) 705-4338
- Listing
- Built from public records. Not claimed yet, so call them directly.
Proven Fire Protection
LA Mirada, CA · WC exempt · 13 mi away
Proof for Proven Fire Protection
- License
- CSLB 1151606
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Mar 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- LA Mirada, CA · serves California
- Phone
- (657) 615-2577
- Listing
- Built from public records. Not claimed yet, so call them directly.
Pumpman Socal
Baldwin Park, CA · WC ✓ · 11 mi away
Proof for Pumpman Socal
- License
- CSLB 1024442
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C36 Plumbing; D21 Machinery and Pumps
- Expires
- Mar 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Baldwin Park, CA · serves California
- Phone
- (626) 939-0300
- Listing
- Built from public records. Not claimed yet, so call them directly.
Qualco Fire Protection Inc
Santa Fe Springs, CA · WC ✓ · 15 mi away
Proof for Qualco Fire Protection Inc
- License
- CSLB 786012
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Oct 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Santa Fe Springs, CA · serves California
- Phone
- (562) 949-2266
- Listing
- Built from public records. Not claimed yet, so call them directly.
Qualco Fire Protection Inc
Santa Fe Springs, CA · 15 mi away
Proof for Qualco Fire Protection Inc
- USDOT registration
- US-DOT 2740204
- Issuer
- US-DOT
- Status
- Active
- Class
- Private motor carrier
- Checked
- Oct 23, 2026
- Where
- Santa Fe Springs, CA · serves California
- Phone
- (562) 949-2266
- Listing
- Built from public records. Not claimed yet, so call them directly.
Red Beacon Fire & Electric Inc
Orange, CA · WC ✓ · 13 mi away
Proof for Red Beacon Fire & Electric Inc
- License
- CSLB 1041064
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Nov 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Orange, CA · serves California
- Phone
- (855) 202-2966
- Listing
- Built from public records. Not claimed yet, so call them directly.
Reliant Spray Systems Inc
LA Verne, CA · WC ✓ · 11 mi away
Proof for Reliant Spray Systems Inc
- License
- CSLB 387020
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection
- Expires
- Sep 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- LA Verne, CA · serves California
- Phone
- (909) 596-9981
- Listing
- Built from public records. Not claimed yet, so call them directly.
Rely-On Technologies
Fullerton, CA · WC ✓ · 11 mi away
Proof for Rely-On Technologies
- License
- CSLB 506096
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; D34 Prefabricated Equipment
- Expires
- Jan 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Fullerton, CA · serves California
- Phone
- (562) 697-7095
- Listing
- Built from public records. Not claimed yet, so call them directly.
Residential Fire Systems Inc
Anaheim, CA · WC ✓ · 11 mi away
Proof for Residential Fire Systems Inc
- License
- CSLB 786965
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C10 Electrical; C16 Fire Protection
- Expires
- Nov 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- Anaheim, CA · serves California
- Phone
- (714) 666-8450
- Listing
- Built from public records. Not claimed yet, so call them directly.
Roelle Michael G Plumbing and Fire Sprinkler Contractor
Irwindale, CA · WC exempt · 11 mi away
Proof for Roelle Michael G Plumbing and Fire Sprinkler Contractor
- License
- CSLB 271993
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection; C36 Plumbing
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Irwindale, CA · serves California
- Phone
- (626) 625-9452
- Listing
- Built from public records. Not claimed yet, so call them directly.
Roelle Michael G Plumbing & Fire Sprinkler Contractor Inc
Irwindale, CA · WC exempt · 11 mi away
Proof for Roelle Michael G Plumbing & Fire Sprinkler Contractor Inc
- License
- CSLB 743562
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- B General Building; C16 Fire Protection; C36 Plumbing
- Expires
- Dec 31, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Irwindale, CA · serves California
- Phone
- (626) 625-9452
- Listing
- Built from public records. Not claimed yet, so call them directly.
Route 66 Fire Protection Inc
LA Verne, CA · WC ✓ · 11 mi away
Proof for Route 66 Fire Protection Inc
- License
- CSLB 909815
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Jan 31, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Workers' comp on file
- Where
- LA Verne, CA · serves California
- Phone
- (909) 596-8393
- Listing
- Built from public records. Not claimed yet, so call them directly.
S D L Fire Protection Inc
Whittier, CA · WC exempt · 12 mi away
Proof for S D L Fire Protection Inc
- License
- CSLB 1017716
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Apr 30, 2028
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Whittier, CA · serves California
- Phone
- (949) 232-6967
- Listing
- Built from public records. Not claimed yet, so call them directly.
Santa Fe Fire Protection
Whittier, CA · WC exempt · 14 mi away
Proof for Santa Fe Fire Protection
- License
- CSLB 821130
- Issuer
- California Contractors State License Board
- Status
- Active
- Class
- C16 Fire Protection
- Expires
- Jun 30, 2027
- Checked
- Oct 24, 2026
- Workers' comp
- Exempt: no employees
- Where
- Whittier, CA · serves California
- Phone
- (562) 692-5637
- 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.