Fire sprinkler system installation · California

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office

Roseville, CA · ~37 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
8.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office runs at 294% of its industry's injury rate - far more dangerous than the typical Fire sprinkler system installation workplace, earning a grade F.

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office: 8.2 TCR = 294% of Fire sprinkler system installation BLS 2.8 · 2y Form 300A (see methodology below)

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office safety composite

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 4%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

20/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.23 per 100 workers

Safer than 15% of industry peers

DART rate
F 11.18 per 100 workers

Safer than 4% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office: 5.3 → 11.2 TCR

Peak year 2023 @ 11.2 TCR · DART/TCR 1.36× in 2023

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office's TCR rose 5.9 from 5.3 in 2022 to 11.2 in 2023. In 2023, DART was 1.36× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Roseville, CA ABOVE-IND · SMALL

Grade F · TCR 8.2 · 294% of ind

  • DART 11.2 DART
  • RANK #463/594
  • PHOTO Benicia Plumbing, Inc
  • BOOK 2y book
  • INJ 6 inj
  • SIZE ~37 FTE

Nearest TCR peer: Benicia Plumbing, Inc (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office averages 8.2 TCR (294% of the Fire sprinkler system installation BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office TCR series: 2022=5.3 · 2023=11.2 · BLS 2.8

Where J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office falls in its industry

5,793 Fire sprinkler system installa establishments

Safer than 15% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #463 safest of 594 Fire sprinkler system installa employers in California.

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office (37 employees, TCR 8.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200250 05101520 Average employees Total Case Rate J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office
J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office (37 employees, TCR 8.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

J-Four Enterprises, Inc. dba Mr. Sprinkler Fire Protection Office has fewer employees than the Fire sprinkler system installation median and a higher injury rate than the industry's median TCR of 3.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 11.2 11.2 4 0 0
2022 5.3 5.3 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · CA · Roseville

5,793 Fire sprinkler system installation employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 311 employers in Roseville, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Benicia Plumbing, Inc 8.2 TCR
NAICS-TCR Climate Pros Austin 8.2 TCR
NAICS-TCR Talent Air 8.2 TCR
NAICS-TCR Airtec Service, Inc. 8.2 TCR
STATE-SIZE BULLSEYE FARMS LLC 37 FTE
STATE-SIZE KP Spraying LLC 37 FTE
STATE-SIZE KAN - 01 37 FTE
STATE-SIZE Kimberlina Shop 37 FTE
CITY-NEAR 2032-02121801 4,395 FTE
CITY-NEAR Sutter Valley Hospitals (30003) 4,383 FTE
CITY-NEAR 0206-02621801 3,172 FTE
CITY-NEAR Sutter Roseville Medical Center (110-5001) 3,162 FTE
NAT-TCR Victory Foodservice 8.2 TCR
NAT-TCR Funky Buddha Brewery 8.2 TCR
NAT-TCR Mesquite Terminal 8.2 TCR
NAT-TCR Coal City Fire Protection District Station #2 8.2 TCR
NAT-SIZE V&M Erectors, Inc 37 FTE
NAT-SIZE Nisbet Brower Components 37 FTE
NAT-SIZE American Red Cross - 404 E 3rd St 37 FTE
NAT-SIZE American Red Cross - 1102 S 16th St 37 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.