Heating, ventilation and air-conditioning (HVAC) contractors · Texas
Polk Mechanical Company- DFW
GRAND PRAIRIE, TX · ~468 workers · 2 years of OSHA Injury Tracking Application data.
- A
- Excellent Safety Record
- 0.3
- Avg TCR
- 2.8
- Industry avg
- 0
- Fatalities
The verdict
Polk Mechanical Company- DFW runs at 12% of its industry's injury rate — far safer than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace — earning a grade A.
- A
- Excellent Safety Record
- 0.3
- avg TCR · per 100 workers
- 2.8
- industry benchmark (BLS)
- 3
- recordable injuries tracked
Grade compares Polk Mechanical Company- DFW's OSHA Total Case Rate to the BLS industry benchmark across 2 years of Form 300A filings (2016–2024).
Injury rate over time
Polk Mechanical Company- DFW's yearly Total Case Rate, against the 2.8 industry benchmark.
Total Case Rate (recordable injuries per 100 full-time workers), OSHA ITA Form 300A. Industry benchmark: BLS IIF, NAICS 238220.
Polk Mechanical Company- DFW has an average TCR of 0.3, which is 12% of the industry average (2.8) for Heating, ventilation and air-conditioning (HVAC) contractors. This is significantly better than average.
Safety Insights for Polk Mechanical Company- DFW
Polk Mechanical Company- DFW operates an establishment with approximately 468 full-time equivalent workers in GRAND PRAIRIE, TX, classified under the Heating, ventilation and air-conditioning (HVAC) contractors industry (NAICS 238220). Across 2 years of mandatory OSHA Injury Tracking Application (ITA) reporting, this employer has accumulated 3 recordable injuries, 0 occupational illnesses, and 0 workplace fatalities. The average Total Case Rate (TCR) of 0.3 injuries per 100 full-time workers per year provides the anchor metric for the A letter grade (Excellent Safety Record).
Benchmarked against the Bureau of Labor Statistics industry average of 2.8 for Heating, ventilation and air-conditioning (HVAC) contractors, Polk Mechanical Company- DFW's workforce experiences 12% of the typical injury burden. This ratio matters because TCR already normalizes for hours worked — a 200,000-hour exposure base equals roughly 100 full-time workers — so establishments with very different headcounts can be compared directly. A TCR below the benchmark signals that controls, training, or automation may be outperforming peers.
Multi-year trend analysis is the single most reliable signal here: a one-year spike could reflect a single severe event, whereas sustained elevation across 2 reporting cycles points to systemic hazard exposure. Readers evaluating Polk Mechanical Company- DFW as an employer, contractor, investment, or regulatory target should examine the yearly DART rate (days away, restricted, or transferred), the fatality count of 0, and any year-over-year deterioration shown in the table below. All figures come directly from employer-submitted OSHA Form 300A summaries — there is no modeling, estimation, or third-party adjustment layered on top of the government data.
Verify This Employer with OSHA
All injury, illness, and fatality figures on this page are sourced from Polk Mechanical Company- DFW's own mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source — name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor — OSHA Establishment-Specific Injury and Illness Data. NAICS 238220 — Heating, ventilation and air-conditioning (HVAC) contractors.
DART Rate — Transparent Calculation (2019)
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
0 DART incidents × 200,000 ÷ 1,069,687 hours worked = 0.00 DART
Methodology: 29 CFR 1904 — OSHA Form 300A recordkeeping
Cross-Validating Context — Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Polk Mechanical Company- DFW (this establishment) | 0.33 | OSHA ITA Form 300A, 2-year avg |
| Mechanical contractors industry avg | 2.80 | BLS IIF, NAICS 238220 |
| Texas state avg (all industries) | 3.73 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics — Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Polk Mechanical Company- DFW to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2019: 1 reportable incidents · 1 injuries, 0 illnesses, 0 fatalities — OSHA inspection records (case numbers)
- 2018: 2 reportable incidents · 2 injuries, 0 illnesses, 0 fatalities — OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) — inspection case-number records
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2019 | 0.2 | 0.0 | 1 | 0 | 0 |
| 2018 | 0.5 | 0.0 | 2 | 0 | 0 |
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