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

Four Star Mechanical, Inc.

Name: Four Star Mechanical, Inc. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Hamilton, OH · ~43 workers · 6 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.8
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Four Star Mechanical, Inc. runs at 99% of its industry's injury rate - about level with the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade C.

Four Star Mechanical, Inc.: 2.8 TCR = 99% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 6y Form 300A (see methodology below)

Four Star Mechanical, Inc. safety composite

Four Star Mechanical, Inc. scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

64/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.76 per 100 workers

Safer than 57% of industry peers
DART rate: B 0 per 100 workers

Safer than 80% 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%).

Four Star Mechanical, Inc. held a steady TCR band

Four Star Mechanical, Inc.'s TCR held near 0.0 from 0.0 in 2017 to 0.0 in 2023. Peak filing year was 2021 at 9.3 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2017=0.0 · 2018=2.6 · 2019=0.0 · 2021=9.3 · 2022=4.7 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Hamilton, OH AT/BELOW-IND · SMALL

Grade C · TCR 2.8 · 99% of ind

DART 0.0 DART
RANK #151/300
PHOTO Comfort Systems USA …
BOOK 6y book
INJ 7 inj
SIZE ~43 FTE

Nearest TCR peer: Comfort Systems USA Ohio Cleveland (0.0 TCR gap)

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This site

2.8
Comfort System

2.8
Vincentini Plu

2.8
Corporate Offi

2.8
Tennessee offi

2.8

What this shows Four Star Mechanical, Inc. averages 2.8 TCR (99% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

Four Star Mechanical, Inc. TCR series: 2017=0 · 2018=2.6 · 2019=0 · 2021=9.3 · 2022=4.7 · 2023=0 · BLS 2.8

Where Four Star Mechanical, Inc. falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 57% of graded establishments in this industry, whose median TCR is 3.3.

Grade C

More dangerous than peersSafer than peers

Narrower to Ohio alone (the establishments it most directly competes with for workers and contracts): ranked #151 safest of 300 Heating, ventilation and air-c employers in Ohio.

Four Star Mechanical, Inc. (43 employees, TCR 2.8) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Four Star Mechanical, Inc. has fewer 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
2023	0.0	0.0	0
2022	4.7	4.7	2
2021	9.3	9.3	4
2019	0.0	0.0	0
2018	2.6	2.6	1
2017	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · OH · Hamilton

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 22,650 rated employers in Ohio with headcount on file · 153 employers in Hamilton, OH · 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	Comfort Systems USA Ohio Cleveland	OAKWOOD VILLAGE, OH	2.8 TCR
NAICS-TCR	Vincentini Plumbing Inc	OMAHA, NE	2.8 TCR
NAICS-TCR	Corporate Office	WILMINGTON, NC	2.8 TCR
NAICS-TCR	Tennessee office	BRENTWOOD, TN	2.8 TCR
STATE-SIZE	CW Egg Products	FORT RECOVERY	43 FTE
STATE-SIZE	STgenetics-Marysville	MARYSVILLE	43 FTE
STATE-SIZE	St. Clairsville Ohio	ST. CLAIRSVILLE	43 FTE
STATE-SIZE	Dresden Plant	DRESDEN	43 FTE
CITY-NEAR	Fort Hamilton Hospital	Hamilton	1,011 FTE
CITY-NEAR	3638-F	Hamilton	890 FTE
CITY-NEAR	thyssenkrupp Bilstein of America	Hamilton	657 FTE
CITY-NEAR	thyssenkrupp Bilstein Main Plant	Hamilton	653 FTE
NAT-TCR	HI.HONOL.2 - Ricoh Americas Holdings, Inc	Honolulu, HI	2.8 TCR
NAT-TCR	Compassionate Community Care	San Francisco, CA	2.8 TCR
NAT-TCR	Z Contractors Inc.	Shelby Township, MI	2.8 TCR
NAT-TCR	Diamond Roofing Company, Inc.	Syracuse, NY	2.8 TCR
NAT-SIZE	Patner Construction inc	Fairfax, VA	43 FTE
NAT-SIZE	Eagle Rock - Littleton	Littleton, CO	43 FTE
NAT-SIZE	The Surgery Center LLC	Franklin, WI	43 FTE
NAT-SIZE	Deaton's Mechanical Co Inc	Indianapolis, IN	43 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, 2019, 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.