Plumbing and heating contractors · Delaware

JF Sobieski Mechanical Contractors, Inc.

Newark, DE · ~345 workers · 2 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

JF Sobieski Mechanical Contractors, Inc. runs at 35% of its industry's injury rate - far safer than the typical Plumbing and heating contractors workplace, earning a grade A.

JF Sobieski Mechanical Contractors, Inc.: 1.0 TCR = 35% of Plumbing and heating contractors BLS 2.8 · 2y Form 300A (see methodology below)

JF Sobieski Mechanical Contractors, Inc. safety composite

JF Sobieski Mechanical Contractors, Inc. scores strongest on total case rate (tcr) (safer than 88% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

B

76/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 0.97 per 100 workers

Safer than 88% of industry peers

DART rate
B 0 per 100 workers

Safer than 80% 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%).

JF Sobieski Mechanical Contractors, Inc. held a steady TCR band

JF Sobieski Mechanical Contractors, Inc.'s TCR held near 0.3 from 0.8 in 2022 to 1.1 in 2024. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2022=0.8 · 2024=1.1

OSHA ITA Form 300A scorecard

Establishment book 238220 · Newark, DE AT/BELOW-IND · MID

Grade A · TCR 1.0 · 35% of ind

  • DART 0.0 DART
  • RANK #5/32
  • PHOTO Rite-Way Plumbing & …
  • BOOK 2y book
  • INJ 7 inj
  • SIZE ~345 FTE

Nearest TCR peer: Rite-Way Plumbing & Heating Inc (0.0 TCR gap)

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

JF Sobieski Mechanical Contractors, Inc. in the TCR neighbourhood

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

TCR

What this shows JF Sobieski Mechanical Contractors, Inc. averages 1.0 TCR (35% of the Plumbing and heating contractors BLS benchmark).

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

JF Sobieski Mechanical Contractors, Inc. TCR series: 2022=0.8 · 2024=1.1 · BLS 2.8

Where JF Sobieski Mechanical Contractors, Inc. falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 88% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Delaware alone (the establishments it most directly competes with for workers and contracts): ranked #5 safest of 32 Plumbing and heating contracto employers in Delaware.

JF Sobieski Mechanical Contractors, Inc. (345 employees, TCR 1.0) 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 0100200300400 05101520 Average employees Total Case Rate JF Sobieski Mechanical Contractors, Inc.
JF Sobieski Mechanical Contractors, Inc. (345 employees, TCR 1.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

JF Sobieski Mechanical Contractors, Inc. has more employees than the Plumbing and heating contractors median and a lower 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
2024 1.1 0.0 4 0 0
2022 0.8 0.0 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · DE · Newark

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 1,487 rated employers in Delaware with headcount on file · 221 employers in Newark, DE · 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 Rite-Way Plumbing & Heating Inc 1.0 TCR
NAICS-TCR Arden Engineering Constructors, LLC 1.0 TCR
NAICS-TCR Waker Plumbing, Inc 1.0 TCR
NAICS-TCR Varitec Controls and Service Solutions LLC 1.0 TCR
STATE-SIZE Christiana 074 345 FTE
STATE-SIZE DENWT - NEW CASTLE 348 FTE
STATE-SIZE 2460 352 FTE
STATE-SIZE Diamond Materials LLC 353 FTE
CITY-NEAR 50 Christiana 11,420 FTE
CITY-NEAR Newark Site 1,462 FTE
CITY-NEAR DE00000042 GOODWILL INDUSTRIES - NEWARK 1,028 FTE
CITY-NEAR DuPont Electronic Materials 653 FTE
NAT-TCR CBC Steel Buildings 1.0 TCR
NAT-TCR Spartech 1.0 TCR
NAT-TCR College Station,TX 1.0 TCR
NAT-TCR Precision Electric, Inc. 1.0 TCR
NAT-SIZE Morrison County Government Center 345 FTE
NAT-SIZE Phenix Flooring, LLC 345 FTE
NAT-SIZE Mathews Archery, Inc 345 FTE
NAT-SIZE Capital Community College 345 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: 2024, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.