Plumbing, heating, and air-conditioning contractors · Georgia

Mann Mechanical Co.

Name: Mann Mechanical Co. Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Avondale Estates, GA · ~131 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 1.5
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Mann Mechanical Co. runs at 54% of its industry's injury rate - safer than the typical Plumbing, heating, and air-conditioning contractors workplace, earning a grade B.

Mann Mechanical Co.: 1.5 TCR = 54% of Plumbing, heating, and air-conditioning contractors BLS 2.8 · 3y Form 300A (see methodology below)

Mann Mechanical Co. safety composite

Mann Mechanical Co. scores strongest on total case rate (tcr) (safer than 78% of same-industry peers) and weakest on dart rate (safer than 36%), 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).

57/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): B 1.5 per 100 workers

Safer than 78% of industry peers
DART rate: D 2.28 per 100 workers

Safer than 36% 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

Mann Mechanical Co.: 1.1 → 2.3 TCR

Peak year 2019 @ 2.3 TCR · DART/TCR 1.52× in 2019

Mann Mechanical Co.'s TCR rose 1.1 from 1.1 in 2017 to 2.3 in 2019. In 2019, DART was 1.52× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Avondale Estates, GA AT/BELOW-IND · MID

Grade B · TCR 1.5 · 54% of ind

DART 2.3 DART
RANK #37/123
PHOTO Elliott-Lewis Corpor…
BOOK 3y book
INJ 7 inj
SIZE ~131 FTE

Nearest TCR peer: Elliott-Lewis Corporation (0.0 TCR gap)

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

This site

1.5
Elliott-Lewis

1.5
Total Fire Pro

1.5
ACI Mechanical

1.5
Illinois Pipin

1.5

What this shows Mann Mechanical Co. averages 1.5 TCR (54% of the Plumbing, heating, and air-conditioning contractors BLS benchmark).

Mann Mechanical Co. TCR series: 2017=1.1 · 2018=1.1 · 2019=2.3 · BLS 2.8

Where Mann Mechanical Co. falls in its industry

5,793 Plumbing, heating, and air-con establishments

Safer than 78% of graded establishments in this industry, whose median TCR is 3.3.

Grade B

More dangerous than peersSafer than peers

Narrower to Georgia alone (the establishments it most directly competes with for workers and contracts): ranked #37 safest of 123 Plumbing, heating, and air-con employers in Georgia.

Mann Mechanical Co. (131 employees, TCR 1.5) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Mann Mechanical Co. has more employees than the Plumbing, heating, and air-conditioning 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
2019	2.3	2.3	3
2018	1.1	0.6	2
2017	1.1	0.6	2

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · GA · Avondale Estates

5,793 Plumbing, heating, and air-conditioning contractors employers nationwide with a credible TCR · 14,941 rated employers in Georgia with headcount on file · 4 employers in Avondale Estates, GA · 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	Elliott-Lewis Corporation	PHILADELPHIA, PA	1.5 TCR
NAICS-TCR	Total Fire Protection, Inc.	GRAND RAPIDS, MI	1.5 TCR
NAICS-TCR	ACI Mechanical, Inc.	AMES, IA	1.5 TCR
NAICS-TCR	Illinois Piping Corporation	PEORIA, IL	1.5 TCR
STATE-SIZE	Gunter Construction Company, Inc.- Lawrenceville	LAWRENCEVILLE	131 FTE
STATE-SIZE	Roof Depot	ALPHARETTA	131 FTE
STATE-SIZE	RVI-Cuthbert	CUTHBERT	131 FTE
STATE-SIZE	Southern Mills DBA TenCate Protective Fabrics - Yarn Plant	SENOIA	131 FTE
CITY-NEAR	JOLLAY MASONRY	Avondale Estates	96 FTE
CITY-NEAR	Arbor Guard GA	Avondale Estates	75 FTE
CITY-NEAR	151131	Avondale Estates	43 FTE
NAT-TCR	Stryker Demolition & Environmental Services, LLC	Wayne, PA	1.5 TCR
NAT-TCR	Illinois Tool Works Buehler	Lake Bluff, IL	1.5 TCR
NAT-TCR	AMEREN ILLINOIS - Mattoon	Mattoon, IL	1.5 TCR
NAT-TCR	Otis Elevator Company-OSC	Bloomfield, CT	1.5 TCR
NAT-SIZE	631 - Bala Cynwyd	Bala Cynwyd, PA	131 FTE
NAT-SIZE	#572 Bordentown Shoprite	Bordentown, NJ	131 FTE
NAT-SIZE	Allen Tire Lakewood	Lakewood, CA	131 FTE
NAT-SIZE	DC-Killingly	Dayville, CT	131 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: 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.