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

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc.

Marquette, MI · ~32 workers · 4 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
8.2
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. runs at 293% of its industry's injury rate - far more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade F.

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc.: 8.2 TCR = 293% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 4y Form 300A (see methodology below)

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. safety composite

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 16%), 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).

F

27/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.2 per 100 workers

Safer than 16% of industry peers

DART rate
F 4.05 per 100 workers

Safer than 21% 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

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc.: 5.8 → 12.2 TCR

Peak year 2024 @ 12.2 TCR · DART/TCR 0.49× in 2024

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc.'s TCR rose 6.4 from 5.8 in 2019 to 12.2 in 2024. In 2024, DART was 0.49× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

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

Grade F · TCR 8.2 · 293% of ind

  • DART 4.0 DART
  • RANK #131/153
  • PHOTO General Sprinkler Co…
  • BOOK 4y book
  • INJ 10 inj
  • SIZE ~32 FTE

Nearest TCR peer: General Sprinkler Corporation (0.0 TCR gap)

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

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. in the TCR neighbourhood

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

TCR

What this shows Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. averages 8.2 TCR (293% 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

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. TCR series: 2019=5.8 · 2022=7.9 · 2023=7 · 2024=12.2 · BLS 2.8

Where Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 16% 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 #131 safest of 153 Heating, ventilation and air-c employers in Michigan.

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. (32 employees, TCR 8.2) 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 Dresseler & Son, Inc., dba. Dresseler Mechanical Inc.
Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. (32 employees, TCR 8.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Dresseler & Son, Inc., dba. Dresseler Mechanical Inc. has fewer 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 12.2 4.0 3 0 0
2023 7.0 0.0 3 0 0
2022 7.9 7.9 2 0 0
2019 5.8 0.0 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MI · Marquette

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 · 79 employers in Marquette, 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 General Sprinkler Corporation 8.2 TCR
NAICS-TCR 6728-00030053-1 8.2 TCR
NAICS-TCR Smith Mechanical, Inc. 8.2 TCR
NAICS-TCR ColdFlo Mechanical, Inc. 8.2 TCR
STATE-SIZE 6801_15743 32 FTE
STATE-SIZE Black Soil Dairy 32 FTE
STATE-SIZE Berrybrook 32 FTE
STATE-SIZE East Tawas 32 FTE
CITY-NEAR DLP Marquette General Hospital LLC 1,854 FTE
CITY-NEAR WM 2079 474 FTE
CITY-NEAR 2079 380 FTE
CITY-NEAR Marquette Branch Prison 311 FTE
NAT-TCR MS Cafe 16 8.2 TCR
NAT-TCR 1138 - Silver Spring 8.2 TCR
NAT-TCR 1530 - Muncie 8.2 TCR
NAT-TCR 2142 - McKinney SW 8.2 TCR
NAT-SIZE Tri-Cities 32 FTE
NAT-SIZE Beemer Construction Company Inc 32 FTE
NAT-SIZE Ready Mix Cantonment (Dual A) 32 FTE
NAT-SIZE R&M Electric 32 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, 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.