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

Master Mechanical, Inc.

Eagan, MN · ~90 workers · 5 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Master Mechanical, Inc. runs at 151% of its industry's injury rate - more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade D.

Master Mechanical, Inc.: 4.2 TCR = 151% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 5y Form 300A (see methodology below)

Master Mechanical, Inc. safety composite

Master Mechanical, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 40%), 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

43/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.22 per 100 workers

Safer than 41% of industry peers

DART rate
D 1.97 per 100 workers

Safer than 40% 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

Master Mechanical, Inc.: 3.0 → 3.9 TCR

Peak year 2021 @ 7.3 TCR · DART/TCR 0.47× in 2024

Master Mechanical, Inc.'s TCR rose 0.9 from 3.0 in 2019 to 3.9 in 2024. Peak filing year was 2021 at 7.3 TCR. In 2024, DART was 0.47× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Eagan, MN ABOVE-IND · SMALL

Grade D · TCR 4.2 · 151% of ind

  • DART 2.0 DART
  • RANK #61/153
  • PHOTO CMC Sheet Metal Inc.
  • BOOK 5y book
  • INJ 19 inj
  • SIZE ~90 FTE

Nearest TCR peer: CMC Sheet Metal Inc. (0.0 TCR gap)

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Master Mechanical, Inc. in the TCR neighbourhood

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

TCR

What this shows Master Mechanical, Inc. averages 4.2 TCR (151% 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

Master Mechanical, Inc. TCR series: 2019=3 · 2021=7.3 · 2022=3.8 · 2023=3 · 2024=3.9 · BLS 2.8

Where Master Mechanical, Inc. falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 41% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Minnesota alone (the establishments it most directly competes with for workers and contracts): ranked #61 safest of 153 Heating, ventilation and air-c employers in Minnesota.

Master Mechanical, Inc. (90 employees, TCR 4.2) 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 Master Mechanical, Inc.
Master Mechanical, Inc. (90 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Master Mechanical, Inc. 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 3.9 2.0 4 0 0
2023 3.0 1.0 3 0 0
2022 3.8 0.0 3 0 0
2021 7.3 2.4 6 0 0
2019 3.0 0.0 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MN · Eagan

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 15,828 rated employers in Minnesota with headcount on file · 285 employers in Eagan, MN · 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 CMC Sheet Metal Inc. 4.2 TCR
NAICS-TCR Air Mechanical & Service Corp. Tampa 4.2 TCR
NAICS-TCR 5188 SE INTERNATIONAL WAY 4.2 TCR
NAICS-TCR Mahle Behr Dayton LLC 4.2 TCR
STATE-SIZE Bushel Boy - Owatonna 90 FTE
STATE-SIZE Radiant Change Construction, LLC. 90 FTE
STATE-SIZE Weis Builders - Minneapolis 90 FTE
STATE-SIZE Kelleher Construction, Inc 90 FTE
CITY-NEAR Prime Therapeutics - Prime Landing & Remote 6,596 FTE
CITY-NEAR Thomson Reuters - Eagan 4,474 FTE
CITY-NEAR MSPXL0001 MSPXL0001 4,156 FTE
CITY-NEAR Lifeworks Services, Inc 3,663 FTE
NAT-TCR Saver Group,Inc dba Richmond Save-A-Lot 4.2 TCR
NAT-TCR Woodley's Factory 4.2 TCR
NAT-TCR Tomric Systems Inc 4.2 TCR
NAT-TCR 01040-01-01-COLUSA 4.2 TCR
NAT-SIZE Intransit Container LLC 90 FTE
NAT-SIZE Edgewood Mandan LLC 90 FTE
NAT-SIZE LAGRANGE 90 FTE
NAT-SIZE Stueken LLC 90 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, 2021, 2019. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.