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

A-1 Mechanical of MI, LLC

Lansing, MI · ~74 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
7.7
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

A-1 Mechanical of MI, LLC runs at 274% of its industry's injury rate - far more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade F.

A-1 Mechanical of MI, LLC: 7.7 TCR = 274% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 3y Form 300A (see methodology below)

A-1 Mechanical of MI, LLC safety composite

A-1 Mechanical of MI, LLC scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 18%), 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).

D

35/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 7.67 per 100 workers

Safer than 18% 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

−14.1

2022→2024

A-1 Mechanical of MI, LLC injury rate improved

A-1 Mechanical of MI, LLC's TCR fell 14.1 from 15.9 in 2022 to 1.8 in 2024. Peak filing year was 2022 at 15.9 TCR. In 2024, DART was 0.23× this establishment's average TCR (severity share of cases).

2022=15.9 · 2023=5.4 · 2024=1.8

OSHA ITA Form 300A scorecard

Establishment book 238220 · Lansing, MI ABOVE-IND · SMALL

Grade F · TCR 7.7 · 274% of ind

  • DART 1.8 DART
  • RANK #127/153
  • PHOTO Rhymes Heating and C…
  • BOOK 3y book
  • INJ 14 inj
  • SIZE ~74 FTE

Nearest TCR peer: Rhymes Heating and Cooling (0.0 TCR gap)

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

A-1 Mechanical of MI, LLC in the TCR neighbourhood

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

TCR

What this shows A-1 Mechanical of MI, LLC averages 7.7 TCR (274% 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

A-1 Mechanical of MI, LLC TCR series: 2022=15.9 · 2023=5.4 · 2024=1.8 · BLS 2.8

Where A-1 Mechanical of MI, LLC falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 18% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #127 safest of 153 Heating, ventilation and air-c employers in Michigan.

A-1 Mechanical of MI, LLC (74 employees, TCR 7.7) 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 A-1 Mechanical of MI, LLC
A-1 Mechanical of MI, LLC (74 employees, TCR 7.7) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

A-1 Mechanical of MI, LLC has more employees than the Heating, ventilation and air-conditionin 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
2024 1.8 1.8 1 0 0
2023 5.4 0.0 3 0 0
2022 15.9 4.8 10 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MI · Lansing

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 410 employers in Lansing, MI · 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 Rhymes Heating and Cooling 7.7 TCR
NAICS-TCR ABC Plumbing, Sewer, Heating, Cooling & Electric 7.7 TCR
NAICS-TCR RRSC Boston South 7.7 TCR
NAICS-TCR Edwards McDowell Inc 7.7 TCR
STATE-SIZE Adrian SC 74 FTE
STATE-SIZE City of Grand Rapids-Environmental Protection Services Division 74 FTE
STATE-SIZE Detroit Office 74 FTE
STATE-SIZE Public Works-Streets and Sanitation 74 FTE
CITY-NEAR Lansing Delta Township Assembly 2,608 FTE
CITY-NEAR General Motors Lansing Delta Township Assembly 2,446 FTE
CITY-NEAR LCC - Main 2,258 FTE
CITY-NEAR Lansing Grand River Assembly 1,648 FTE
NAT-TCR AHL Ventura 7.7 TCR
NAT-TCR Sacramento 212 7.7 TCR
NAT-TCR Jons# 04 7.7 TCR
NAT-TCR Dublin 7.7 TCR
NAT-SIZE Cornerstone - Indianapolis 74 FTE
NAT-SIZE City of Litchfield 74 FTE
NAT-SIZE Airtronics Metal Products 74 FTE
NAT-SIZE Lexington Hides 74 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, 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.