Plumbing and heating contractors · South Carolina

Cullum Mechanical Construction, INC

Name: Cullum Mechanical Construction, INC Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

North Charleston, SC · ~225 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

C
Average Safety Record: 2.7
Avg TCR: 2.8
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

Cullum Mechanical Construction, INC runs at 97% of its industry's injury rate - about level with the typical Plumbing and heating contractors workplace, earning a grade C.

Cullum Mechanical Construction, INC: 2.7 TCR = 97% of Plumbing and heating contractors BLS 2.8 · 4y Form 300A (see methodology below)

Cullum Mechanical Construction, INC safety composite

Cullum Mechanical Construction, INC scores strongest on total case rate (tcr) (safer than 57% 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).

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 2.72 per 100 workers

Safer than 57% of industry peers
DART rate: D 0.87 per 100 workers

Safer than 54% 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%).

Cullum Mechanical Construction, INC held a steady TCR band

Cullum Mechanical Construction, INC's TCR held near 0.3 from 2.5 in 2020 to 2.2 in 2024. Peak filing year was 2022 at 3.5 TCR. In 2024, DART was 0.32× this establishment's average TCR (severity share of cases).

2020=2.5 · 2022=3.5 · 2023=2.6 · 2024=2.2

OSHA ITA Form 300A scorecard

Establishment book 238220 · North Charleston, SC AT/BELOW-IND · MID

Grade C · TCR 2.7 · 97% of ind

DART 0.9 DART
RANK #25/54
PHOTO Desert Mechanical Inc
BOOK 4y book
INJ 25 inj
SIZE ~225 FTE

Nearest TCR peer: Desert Mechanical Inc (0.0 TCR gap)

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

This site

2.7
Desert Mechani

2.7
WL Gary Co INC

2.7
CONSTELLATION

2.7
Superior Wall

2.7

What this shows Cullum Mechanical Construction, INC averages 2.7 TCR (97% of the Plumbing and heating contractors BLS benchmark).

Cullum Mechanical Construction, INC TCR series: 2020=2.5 · 2022=3.5 · 2023=2.6 · 2024=2.2 · BLS 2.8

Where Cullum Mechanical Construction, INC falls in its industry

5,793 Plumbing and heating contracto 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 South Carolina alone (the establishments it most directly competes with for workers and contracts): ranked #25 safest of 54 Plumbing and heating contracto employers in South Carolina.

Cullum Mechanical Construction, INC (225 employees, TCR 2.7) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Cullum Mechanical Construction, INC has more employees than the Plumbing and heating contractors 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
2024	2.2	0.9	5
2023	2.6	1.8	6
2022	3.5	2.6	8
2020	2.5	2.1	6

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · SC · North Charleston

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 7,610 rated employers in South Carolina with headcount on file · 256 employers in North Charleston, SC · 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	Desert Mechanical Inc	SYLMAR, CA	2.7 TCR
NAICS-TCR	WL Gary Co INC	WASHINGTON, DC	2.7 TCR
NAICS-TCR	CONSTELLATION HOME PRODUCTS & SERVICES, LLC	BALTIMORE, MD	2.7 TCR
NAICS-TCR	Superior Wall St.	SALINA, KS	2.7 TCR
STATE-SIZE	Wenwood	GREENVILLE	225 FTE
STATE-SIZE	Catawba Nuclear Plant	YORK	225 FTE
STATE-SIZE	Orian Rugs, Inc.	ANDERSON	225 FTE
STATE-SIZE	Pure Fishing - Columbia	COLUMBIA	225 FTE
CITY-NEAR	Charleston County	North Charleston	2,601 FTE
CITY-NEAR	Palmetto Goodwill Services	North Charleston	1,105 FTE
CITY-NEAR	Trident Medical Center	North Charleston	1,015 FTE
CITY-NEAR	SRC Charleston ISS Division	North Charleston	815 FTE
NAT-TCR	Kilstrom Center	Mitchell, SD	2.7 TCR
NAT-TCR	Traeger Pellet Grills, LLC	Salt Lake City, UT	2.7 TCR
NAT-TCR	Lenoir (Marlin)	Lenoir, NC	2.7 TCR
NAT-TCR	Gristedes #601	New York, NY	2.7 TCR
NAT-SIZE	Clean Team USA	Lansing, MI	225 FTE
NAT-SIZE	Aviation Trechnical Services Kansass City	Kansass City, MO	225 FTE
NAT-SIZE	Unified Construction Group, LLC	Woburn, MA	225 FTE
NAT-SIZE	Dierks Lumber	Dierks, AR	225 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, 2020. 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.