Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation · Michigan

Design Heating and Air Conditioning

Grand Rapids, MI · ~29 workers · 6 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
12.5
Avg TCR
2.8
Industry avg
0
Fatalities

The verdict

Design Heating and Air Conditioning runs at 446% of its industry's injury rate - far more dangerous than the typical Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation workplace, earning a grade F.

F
Failing Safety Record
12.5
avg TCR · per 100 workers
2.8
industry benchmark (BLS)
10
recordable injuries tracked

Grade compares Design Heating and Air Conditioning's OSHA Total Case Rate of 12.5 to the Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation BLS benchmark of 2.8 (446% of benchmark) across 6 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.

Injury rate over time

Design Heating and Air Conditioning's yearly Total Case Rate, against the 2.8 industry benchmark.

-1000100200300 201620172018201920202021 28.62.8 Industry benchmarkDesign Heating and Air Conditioning TCR
Total Case Rate (recordable injuries per 100 full-time workers), OSHA ITA Form 300A. Industry benchmark: BLS IIF, NAICS 238220.

Where Design Heating and Air Conditioning falls in its industry

6,536 Duct work (e.g., cooling, dust establishments

Safer than 5% of graded establishments in this industry, whose median TCR is 2.8.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #160 safest of 170 Duct work (e.g., cooling, dust employers in Michigan.

Trend analysis for Design Heating and Air Conditioning

Between 2016 and 2021, Design Heating and Air Conditioning's Total Case Rate worsened from 9.6 to 28.6 recordable injuries per 100 full-time workers, a 197% increase across 5 years of OSHA reporting.

The safest year on record was 2019, at a TCR of 0.0, while 2021 saw the highest rate, at 28.6, a spread of 28.6 points between the best and worst reporting years. That's a wide swing relative to the establishment's overall rate, worth checking the year-by-year table below for whether a single severe year is driving the average, rather than a sustained trend.

Summed across those 4 reporting years, Design Heating and Air Conditioning recorded 7 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 4-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.

Verify This Employer with OSHA

The 10 injuries shown on this page for Design Heating and Air Conditioning are sourced from its own 6 years of 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 Search

Source: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 238220 - Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation.

DART Rate, Transparent Calculation (2021)

What is the DART rate formula?

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.

1 DART incidents × 200,000 ÷ 7,000 hours worked = 28.57 DART

Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping

Cross-Validating Context, Establishment vs Industry vs State

Benchmark TCR Source
Design Heating and Air Conditioning (this establishment) 12.49 OSHA ITA Form 300A, 6-year avg
Mechanical contractors industry avg 2.80 BLS IIF, NAICS 238220
Michigan state avg (all industries) 4.73 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 Design Heating and Air Conditioning 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.

Source: OSHA Inspection Information System (IMIS) - inspection case-number records

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2021 28.6 28.6 1 0 0
2020 56.4 0.0 2 0 0
2019 0.0 0.0 0 0 0
2018 277.8 277.8 1 0 0
2017 11.8 7.8 3 0 0
2016 9.6 9.6 3 0 0

What this grade means for you

Use this grade as a relative read on Design Heating and Air Conditioning's reported OSHA injury record versus its Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation peers, not a verdict on whether any single site is safe today.

  • At 446% of the Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation benchmark, Design Heating and Air Conditioning reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
  • Judge this record against the wider Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation sector, where injury rates vary widely, before comparing it in isolation. See the industry
  • Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another

Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.

Frequently Asked Questions

What is Design Heating and Air Conditioning's safety grade?
Design Heating and Air Conditioning has a safety grade of F (Failing Safety Record). This grade is based on their average Total Case Rate (TCR) of 12.5 compared to the BLS industry benchmark of 2.8 for Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation.
How many injuries has Design Heating and Air Conditioning reported?
Design Heating and Air Conditioning has reported 10 total injuries and 0 fatalities across 6 years of OSHA data (2021, 2020, 2019, 2018, 2017, 2016). This data comes from mandatory OSHA Injury Tracking Application (ITA) reports.

Similar Employers

Matched by safety record across the industry, by workforce size within Michigan, and by nearby establishments in Grand Rapids - a different peer set than the category browse links below.

Similar TCR (~12.5)

Similar size (~29 workers)

Nearby in Grand Rapids

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: 2021, 2020, 2019, 2018, 2017, 2016. 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. Retrieved and formatted by PlainSafetyScore Editorial

Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.