Heating, ventilation and air-conditioning (HVAC) contractors · Illinois

State Mechanical

Aurora, IL · ~123 workers · 6 years of OSHA Injury Tracking Application data.

B
Good Safety Record
1.4
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

State Mechanical runs at 51% of its industry's injury rate - safer than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade B.

State Mechanical: 1.4 TCR = 51% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 6y Form 300A (see methodology below)

State Mechanical safety composite

State Mechanical scores strongest on total case rate (tcr) (safer than 79% of same-industry peers) and weakest on dart rate (safer than 42%), 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

59/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 1.42 per 100 workers

Safer than 79% of industry peers

DART rate
D 1.76 per 100 workers

Safer than 42% 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

−2.3

2016→2023

State Mechanical injury rate improved

State Mechanical's TCR fell 2.3 from 4.1 in 2016 to 1.8 in 2023. Peak filing year was 2016 at 4.1 TCR. In 2023, DART was 1.24× this establishment's average TCR (severity share of cases).

2016=4.1 · 2018=2.7 · 2020=0.0 · 2021=0.0 · 2022=0.0 · 2023=1.8

OSHA ITA Form 300A scorecard

Establishment book 238220 · Aurora, IL AT/BELOW-IND · MID

Grade B · TCR 1.4 · 51% of ind

  • DART 1.8 DART
  • RANK #76/230
  • PHOTO The Smith & Oby Serv…
  • BOOK 6y book
  • INJ 10 inj
  • SIZE ~123 FTE

Nearest TCR peer: The Smith & Oby Service Company (0.0 TCR gap)

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

State Mechanical in the TCR neighbourhood

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

TCR

What this shows State Mechanical averages 1.4 TCR (51% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

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

State Mechanical TCR series: 2016=4.1 · 2018=2.7 · 2020=0 · 2021=0 · 2022=0 · 2023=1.8 · BLS 2.8

Where State Mechanical falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 79% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #76 safest of 230 Heating, ventilation and air-c employers in Illinois.

State Mechanical (123 employees, TCR 1.4) 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 State Mechanical
State Mechanical (123 employees, TCR 1.4) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

State Mechanical has more employees than the Heating, ventilation and air-conditionin 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
2023 1.8 1.8 2 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2018 2.7 2.7 4 0 0
2016 4.1 0.0 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · IL · Aurora

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 325 employers in Aurora, IL · 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 The Smith & Oby Service Company 1.4 TCR
NAICS-TCR Sheet Metal & HVAC 1.4 TCR
NAICS-TCR Donnelly Mechanical Corp. 1.4 TCR
NAICS-TCR Ivey Mechanical Company 1.4 TCR
STATE-SIZE City of Oak Forest - Public Works 123 FTE
STATE-SIZE D.R. Horton, Inc. - Midwest (Chicago) 123 FTE
STATE-SIZE Reyes Group Ltd 123 FTE
STATE-SIZE Iroquois Paving Corporation 123 FTE
CITY-NEAR Indian Prairie School District 204 3,309 FTE
CITY-NEAR Factor Aurora 2,167 FTE
CITY-NEAR Rush Copley Medical Center, Inc. 2,163 FTE
CITY-NEAR ANDY FRAIN SERVICES INC 2,100 FTE
NAT-TCR Capital Resin Corporation 1.4 TCR
NAT-TCR Moraca Builders, Inc 1.4 TCR
NAT-TCR Hatzel & Buehler Inc. - New York 1.4 TCR
NAT-TCR PRIME AE Group, Inc - MD 1.4 TCR
NAT-SIZE KPC Promise Hospital of Salt Lake City 123 FTE
NAT-SIZE KPC Promise Hopsital of Phoenix 123 FTE
NAT-SIZE West Side Middle School 123 FTE
NAT-SIZE Cortland #178 123 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, 2021, 2020, 2018, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.