Plumbing and heating contractors · West Virginia

Darnold Mechanical, LLC

Kenna, WV · ~29 workers · 3 years of OSHA Injury Tracking Application data.

C
Average Safety Record
3.0
Avg TCR
2.8
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Darnold Mechanical, LLC runs at 108% of its industry's injury rate - about level with the typical Plumbing and heating contractors workplace, earning a grade C.

Darnold Mechanical, LLC: 3.0 TCR = 108% of Plumbing and heating contractors BLS 2.8 · 3y Form 300A (see methodology below)

Darnold Mechanical, LLC safety composite

Darnold Mechanical, LLC scores strongest on dart rate (safer than 80% 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).

C

62/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 3.02 per 100 workers

Safer than 53% 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%).

TCR Δ

−3.8

2021→2024

Darnold Mechanical, LLC injury rate improved

Darnold Mechanical, LLC's TCR fell 3.8 from 6.5 in 2021 to 2.6 in 2024. Peak filing year was 2021 at 6.5 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2021=6.5 · 2023=0.0 · 2024=2.6

OSHA ITA Form 300A scorecard

Establishment book 238220 · Kenna, WV ABOVE-IND · SMALL

Grade C · TCR 3.0 · 108% of ind

  • DART 0.0 DART
  • RANK #16/20
  • PHOTO a.d. winston Service…
  • BOOK 3y book
  • INJ 3 inj
  • SIZE ~29 FTE

Nearest TCR peer: a.d. winston Service, Inc (0.0 TCR gap)

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

Darnold Mechanical, LLC in the TCR neighbourhood

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

TCR

What this shows Darnold Mechanical, LLC averages 3.0 TCR (108% 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

Darnold Mechanical, LLC TCR series: 2021=6.5 · 2023=0 · 2024=2.6 · BLS 2.8

Where Darnold Mechanical, LLC falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 53% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to West Virginia alone (the establishments it most directly competes with for workers and contracts): ranked #16 safest of 20 Plumbing and heating contracto employers in West Virginia.

Darnold Mechanical, LLC (29 employees, TCR 3.0) 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 050100150200250 05101520 Average employees Total Case Rate Darnold Mechanical, LLC
Darnold Mechanical, LLC (29 employees, TCR 3.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Darnold Mechanical, LLC has fewer 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 2.6 0.0 1 0 0
2023 0.0 0.0 0 0 0
2021 6.5 6.5 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WV · Kenna

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 2,269 rated employers in West Virginia with headcount on file · 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 a.d. winston Service, Inc 3.0 TCR
NAICS-TCR Excel Fire Protection 3.0 TCR
NAICS-TCR Focus Fire Protection, LLC 3.0 TCR
NAICS-TCR Waldrop Inc 3.0 TCR
STATE-SIZE Pt Pleasant Ofc and Svc Ctr 29 FTE
STATE-SIZE Jarrett Construction Services 29 FTE
STATE-SIZE Lombardi Development Company, Inc. 29 FTE
STATE-SIZE A. J. Burk, LLC 29 FTE
NAT-TCR Pfeninger Trucking, Inc. 3.0 TCR
NAT-TCR Whitestone Transportation 3.0 TCR
NAT-TCR Omni Shoreham Hotel 3.0 TCR
NAT-TCR M Health Clinic - Vadnais Hght 3.0 TCR
NAT-SIZE Inland Northwest Precast LLC 29 FTE
NAT-SIZE East Providence 10202 29 FTE
NAT-SIZE Johnston 10242 29 FTE
NAT-SIZE State College 10262 29 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, 2023, 2021. 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.