Manufacturing · Romulus, MI

Detroit Thermal Systems LLC

According to OSHA enforcement records (2010–2026), Detroit Thermal Systems LLC ranks #3,058 of 99,447 penalized U.S. employers by total current penalty, with a concerning safety record: 93 violations across 9 inspections.

Top 5% by penalty63% serious

Compiled by Plainworker · September 6, 2026

$70,500
OSHA penalties: 93
Violations cited: 9
OSHA inspections: #3,058
of 99,447 penalized employers

Detroit Thermal Systems LLC in Romulus, MI has been the subject of 9 OSHA workplace inspections and 93 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $70,500. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Detroit Thermal Systems LLC 9 times over 9 years, roughly annually. These inspections turned up 93 violations, averaging 10.3 per inspection - an extremely dense concentration of citations. According to OSHA enforcement records, its total current penalty ranks #3,058 of 99,447 penalized U.S. employers (the top 5% of penalized employers nationally). Of these, 59 were classified as serious - indicating hazards that could cause death or serious harm. Against the Manufacturing industry average of 3 inspections per employer, this runs well above peers (3.5x the sector average) on inspection frequency. For comparison, Northeast Agricultural Sales, INC. in Detroit, ME is another manufacturing employer with 3 OSHA inspections on record and $70,427 in current penalties.

10.3
violations per inspection: 63.4%
of violations were serious: #3,058
of 99,447 penalized employers

Compliance score

F 0/100

F OSHA safety compliance: 93 violations across 9 OSHA inspections (10.3 per inspection), vs. national p10 0.0 (best) / p90 5.5 (worst) among 145,626 inspected employers.

Channels are separate federal datasets: a dimension marked not applicable simply has no record in that dataset for this employer, not a good or bad score.

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Detroit Thermal System…

$70,500
Manufacturing avg

$15,763

What this shows Detroit Thermal Systems LLC runs well above peers (4.5x the sector average) in total OSHA penalties.

Where this penalty ranks nationally

Total current OSHA penalty vs every U.S. employer with a nonzero penalty

$70,500 Bottom 3% least affordable more affordable than 3% of 99,447 U.S. employers with a penalty

Each bar is a $5K-wide band; taller bars hold more U.S. employers with a penalty. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Labor, OSHA enforcement extracts · 2026

Does more inspection scrutiny mean more findings?

Each dot is one of 21 Manufacturing employers with an OSHA inspection on record, placed by inspections and violations cited. The highlighted dot is Detroit Thermal Systems LLC.

Detroit Thermal Systems LLC has 9 OSHA inspections on record and 93 violations cited. The crosshair marks the median among these Manufacturing peers. Across this sector's tracked employers, more inspections is moderately associated with more violations found -- not a coincidence, but not a guarantee either.

Detroit Thermal Systems LLC in the Manufacturing enforcement ledger

In Manufacturing, Detroit Thermal Systems LLC sits at penalty rank #1,583 of 35,243 penalized establishments ($70,500 assessed).

How Detroit Thermal Systems LLC Compares

Detroit Thermal Systems LLC's 10.33 violations per inspection compares to the Manufacturing sector average of 8.0 violations per employer.

Against the Manufacturing industry average of $15,763 per employer, this employer's current OSHA penalty runs well above peers (4.5x the sector average).

Total Inspections

First Inspection

2015-03-26

Last Inspection

2023-12-14

Inspection Span

9 yrs

Violations / Inspection

10.3

Avg Penalty / Inspection

$7,833

Industry Avg / Inspection

$6,093

What this shows 9 inspections over 9 years, averaging 10.3 violations per visit. That's $7,833 per inspection vs. the Manufacturing average of $6,093.

Serious

63.4% of total

Willful

0.0% of total

Repeat

9.7% of total

Other-Than-Serious

26.9% of total

What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.

Initial Penalty Assessed

$146,800

Current Penalty Amount

$70,500

Penalty Reduction

52.0%

What this shows Penalties were reduced by $76,300 from the initial assessment of $146,800. Reductions may result from informal settlements, formal contests, or negotiated agreements with OSHA.

Industry Safety Context: Manufacturing

How Detroit Thermal Systems LLC compares to the Manufacturing sector, which has 44,645 employers tracked by PlainWorker.

Metric	Detroit Thermal Systems LLC	Industry Avg
Inspections	9	2.6
Violations	93	8.0
Total Penalty	$70,500	$15,763
Avg Penalty per Inspection	$7,833	$6,093

View all 44,645 employers in Manufacturing →

Nationwide Manufacturing peers with similar penalties or inspection counts

Two OSHA-record peer sets for Detroit Thermal Systems LLC, both outside MI so the neighborhoods are not geographic containment.

Similar current OSHA penalty

Nearest same-sector employers by current assessed penalty ($70,500 here).

Reddy Ice Corporation $70,500 TX HI Plains Feed, LLC $70,496 KS Mid American Steel & Wire CO., LLC $70,536 OK Northeast Agricultural Sales, INC. $70,427 ME

Similar OSHA inspection count

Same-sector employers with a comparable inspection history outside this state (9 inspections here).

Lifetime Products, INC. 9 insp. Clearfield, UT Maplewood Beverage Packers LLC 9 insp. Maplewood, NJ Garland Sales, INC. 9 insp. Dalton, GA North American Aerodynamics, INC. 9 insp. Roxboro, NC

Nearby & Similar Employers in Manufacturing

Showing 5 of 44644 other employers tracked in this sector.

Reddy Ice Corporation

Austin, TX

2 inspections $70,500

HI Plains Feed, LLC

Garden City, KS

4 inspections $70,496

Mid American Steel & Wire CO., LLC

Madill, OK

8 inspections $70,536

Northeast Agricultural Sales, INC.

Detroit, ME

3 inspections $70,427

Alan Wire Company

Sikeston, MO

9 inspections $70,596

Compare Detroit Thermal Systems LLC vs Reddy Ice Corporation side-by-side →

What to do with this record

Use Detroit Thermal Systems LLC's enforcement history as one data point, not the whole picture.

A single employer's record can look unusual in isolation. Compare Detroit Thermal Systems LLC against Reddy Ice Corporation, a similarly-sized employer in the same sector, before drawing conclusions. Compare side-by-side
See whether Detroit Thermal Systems LLC's inspection and penalty record is typical for Manufacturing or an outlier against the sector's own average. View the Manufacturing sector
Before you accept a job or raise a safety concern, search any employer for its own OSHA inspection history the same way you found this one. Search employers

Figures reflect closed OSHA and WHD federal enforcement actions on record (2010–2026); not every workplace issue results in an inspection or investigation.

Frequently Asked Questions

Is Detroit Thermal Systems LLC safe to work at? ▼

Based on OSHA records, Detroit Thermal Systems LLC's workplace safety record is concerning, with multiple serious compliance issues. The employer has 93 violations across 9 inspections, including 59 serious violations. Compared to Manufacturing industry peers, this is above average for penalties. Review the full inspection history below for details.

How many OSHA violations does Detroit Thermal Systems LLC have? ▼

Detroit Thermal Systems LLC has 93 OSHA violations on record, including 59 serious, 0 willful, and 9 repeat violations. The total current penalty amount is $70,500.

How many OSHA inspections has Detroit Thermal Systems LLC had? ▼

Detroit Thermal Systems LLC has had 9 OSHA inspections, with the first recorded on 2015-03-26 and the most recent on 2023-12-14. This averages 10.3 violations per inspection.

What is the total penalty amount for Detroit Thermal Systems LLC? ▼

Detroit Thermal Systems LLC has been assessed $70,500 in current OSHA penalties, reduced from an initial assessment of $146,800 (a 52.0% reduction).

Does Detroit Thermal Systems LLC have any serious or willful violations? ▼

Yes. Detroit Thermal Systems LLC has 59 serious violations, and 9 repeat violations. Serious violations involve hazards likely to cause death or serious physical harm. Willful violations indicate the employer intentionally or knowingly disregarded the law.

What industry does Detroit Thermal Systems LLC operate in? ▼

Detroit Thermal Systems LLC operates in the Manufacturing sector (NAICS code 336390). This industry has 44,645 employers tracked by PlainWorker, with 115,492 total OSHA inspections and $703.72M in cumulative penalties.

Where does Detroit Thermal Systems LLC rank nationally on OSHA penalties? ▼

Among the 99,447 U.S. employers with a nonzero current OSHA penalty in PlainWorker's corpus, Detroit Thermal Systems LLC ranks #3,058 (the top 5% of penalized employers nationally). The ordinal is a live COUNT of employers with a lower total_current_penalty; see the methodology page for the exact derivation.

How does Detroit Thermal Systems LLC's safety record compare to industry average? ▼

Detroit Thermal Systems LLC's total OSHA penalty of $70,500 is above the Manufacturing industry average of $15,763 per employer (4.5x the average). The employer has 9 inspections compared to the industry average of 2.6 per employer. For a direct comparison, Northeast Agricultural Sales, INC. in Detroit, ME is a similar manufacturing employer with $70,427 in current penalties.

Data Sources & Methodology ▼

Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).

Source: OSHA Enforcement Data

Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.

Source: Wage and Hour Division (WHD)

Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.

Employer Matching

Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.