HVAC (heating, ventilation and air-conditioning) contractors · Wisconsin

Master Metals Inc

Name: Master Metals Inc Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Onalaska, WI · ~20 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 10.3
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Master Metals Inc runs at 366% of its industry's injury rate - far more dangerous than the typical HVAC (heating, ventilation and air-conditioning) contractors workplace, earning a grade F.

Master Metals Inc: 10.3 TCR = 366% of HVAC (heating, ventilation and air-conditioning) contractors BLS 2.8 · 2y Form 300A (see methodology below)

Master Metals Inc safety composite

Master Metals Inc scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 10%), 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).

22/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 10.26 per 100 workers

Safer than 10% of industry peers
DART rate: F 5.13 per 100 workers

Safer than 15% 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 Metals Inc: 0.0 → 20.5 TCR

Peak year 2018 @ 20.5 TCR · DART/TCR 0.5× in 2018

Master Metals Inc's TCR rose 20.5 from 0.0 in 2017 to 20.5 in 2018. In 2018, DART was 0.5× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Onalaska, WI ABOVE-IND · SMALL

Grade F · TCR 10.3 · 366% of ind

DART 5.1 DART
RANK #135/154
PHOTO McDaniel and Son Plu…
BOOK 2y book
INJ 4 inj
SIZE ~20 FTE

Nearest TCR peer: McDaniel and Son Plumbing, Inc. (0.0 TCR gap)

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This site

10.3
McDaniel and S

10.3
Lynden Sheet M

10.3
Rodgers Plumbi

10.3
Glassman Corpo

10.3

What this shows Master Metals Inc averages 10.3 TCR (366% of the HVAC (heating, ventilation and air-conditioning) contractors BLS benchmark).

Master Metals Inc TCR series: 2017=0 · 2018=20.5 · BLS 2.8

Where Master Metals Inc falls in its industry

5,793 HVAC (heating, ventilation and establishments

Safer than 10% of graded establishments in this industry, whose median TCR is 3.3.

Grade F

More dangerous than peersSafer than peers

Narrower to Wisconsin alone (the establishments it most directly competes with for workers and contracts): ranked #135 safest of 154 HVAC (heating, ventilation and employers in Wisconsin.

Master Metals Inc (20 employees, TCR 10.3) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Master Metals Inc has fewer employees than the HVAC (heating, ventilation and air-condi 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
2018	20.5	5.1	4	0	0
2017	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · WI · Onalaska

5,793 HVAC (heating, ventilation and air-conditioning) contractors employers nationwide with a credible TCR · 12,834 rated employers in Wisconsin with headcount on file · 71 employers in Onalaska, WI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	McDaniel and Son Plumbing, Inc.	MANSFIELD,, TX	10.3 TCR
NAICS-TCR	Lynden Sheet Metal	LYNDEN, WA	10.3 TCR
NAICS-TCR	Rodgers Plumbing & Heating	ALBUQUERQUE, NM	10.3 TCR
NAICS-TCR	Glassman Corporation	HAYS, KS	10.3 TCR
STATE-SIZE	Alsum Farms Inc.	ARENA	20 FTE
STATE-SIZE	FGI West Salem	WEST SALEM	20 FTE
STATE-SIZE	760 Durand Agronomy	DURAND	20 FTE
STATE-SIZE	764 Osseo Agronomy	OSSEO	20 FTE
CITY-NEAR	Gundersen - Onalaska Clinic, Renal, and SSB	Onalaska	1,144 FTE
CITY-NEAR	Onalaska Support Services	Onalaska	571 FTE
CITY-NEAR	WM 1679	Onalaska	505 FTE
CITY-NEAR	Gundersen Onalaska Clinic	Onalaska	456 FTE
NAT-TCR	SLC-Meadowview	Saginaw, MI	10.3 TCR
NAT-TCR	6962-Swy 0025 2456	Petaluma, CA	10.3 TCR
NAT-TCR	WIC Austin Branch	Austin, TX	10.3 TCR
NAT-TCR	Goleta Water District Headquarters	Goleta, CA	10.3 TCR
NAT-SIZE	City of Canton, Ga.	Canton, GA	20 FTE
NAT-SIZE	Electric Motor Sales (Pc1650)	Dalton, GA	20 FTE
NAT-SIZE	Gold Medal Products Co. Chicago	Bensenville, IL	20 FTE
NAT-SIZE	Trimark Federighi	Richmond, CA	20 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: 2018, 2017. 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.