Fire Protection Contractors in Ontario, CA
12 Fire Protection contractors in Ontario, California appear in the CSLB public record — 12 with an active license. Check each one's status, bond, workers' compensation, and classifications before you hire.
JN Construction Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Hci Sprinkler Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
DMG Fire Protection
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
JNSD Construction Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
GC Construction & Fire Protection Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
California Blaze Protection LLC
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Fire Solution Masters Corp
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Fairchild Plumbing & Mechanical Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Advanco Fire Protection Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Southland Fire Protection Co
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Hci Systems Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
Guerrero Fire Protection Inc
C-16 · Ontario, CA
Verified August 4, 2026 · Bonded
More Fire Protection cities in California
Before you hire in Ontario
Frequently asked questions
How many Fire Protection contractors are licensed in Ontario, California?
This directory lists 12 Fire Protection contractors in Ontario, California, of which 12 currently hold an active CSLB license.
How do I check if a Fire Protection contractor is licensed in Ontario, California?
Open the contractor's profile here for their dated CSLB status, or look up their license number directly on the CSLB "Check a License" tool. A license must be active (not expired, suspended, or inactive) to be valid.
Should a Fire Protection contractor carry a bond and workers' compensation?
Most active CSLB licensees carry a contractor bond, and any contractor with employees must carry workers' compensation. Each profile shows what the CSLB record reports.