Heating and ventilation system component (e.g., air registers, diffusers, filters, grilles, sound attenuators) installation · Colorado

Ducts Unlimited Mechanical Systems Inc.

Arvada, CO · ~112 workers · 7 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
8.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Ducts Unlimited Mechanical Systems Inc. runs at 286% of its industry's injury rate - far more dangerous than the typical Heating and ventilation system component (e.g., air registers, diffusers, filters, grilles, sound attenuators) installation workplace, earning a grade F.

Ducts Unlimited Mechanical Systems Inc.: 8.0 TCR = 286% of Heating and ventilation system component (e.g., air registers, diffusers, filters, grilles, sound attenuators) installation BLS 2.8 · 7y Form 300A (see methodology below)

Ducts Unlimited Mechanical Systems Inc. safety composite

Ducts Unlimited Mechanical Systems Inc. scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 16%), 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).

D

47/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.02 per 100 workers

Safer than 16% of industry peers

DART rate
B 0 per 100 workers

Safer than 80% 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%).

TCR Δ

−2.7

2017→2024

Ducts Unlimited Mechanical Systems Inc. injury rate improved

Ducts Unlimited Mechanical Systems Inc.'s TCR fell 2.7 from 2.7 in 2017 to 0.0 in 2024. Peak filing year was 2023 at 14.9 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2017=2.7 · 2018=7.0 · 2019=14.3 · 2021=9.6 · 2022=7.7 · 2023=14.9 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Arvada, CO ABOVE-IND · MID

Grade F · TCR 8.0 · 286% of ind

  • DART 0.0 DART
  • RANK #118/156
  • PHOTO Heide & Cook, LLC
  • BOOK 7y book
  • INJ 47 inj
  • SIZE ~112 FTE

Nearest TCR peer: Heide & Cook, LLC (0.0 TCR gap)

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

Ducts Unlimited Mechanical Systems Inc. in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Ducts Unlimited Mechanical Systems Inc. averages 8.0 TCR (286% of the Heating and ventilation system component (e.g., air registers, diffusers, filters, grilles, sound attenuators) installation BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Ducts Unlimited Mechanical Systems Inc. TCR series: 2017=2.7 · 2018=7 · 2019=14.3 · 2021=9.6 · 2022=7.7 · 2023=14.9 · 2024=0 · BLS 2.8

Where Ducts Unlimited Mechanical Systems Inc. falls in its industry

5,793 Heating and ventilation system establishments

Safer than 16% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Colorado alone (the establishments it most directly competes with for workers and contracts): ranked #118 safest of 156 Heating and ventilation system employers in Colorado.

Ducts Unlimited Mechanical Systems Inc. (112 employees, TCR 8.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200250 05101520 Average employees Total Case Rate Ducts Unlimited Mechanical Systems Inc.
Ducts Unlimited Mechanical Systems Inc. (112 employees, TCR 8.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Ducts Unlimited Mechanical Systems Inc. has more employees than the Heating and ventilation system component median and a higher 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 Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 14.9 10.3 13 0 0
2022 7.7 5.5 6 1 0
2021 9.6 1.9 10 0 0
2019 14.3 10.4 10 1 0
2018 7.0 7.0 6 0 0
2017 2.7 2.7 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · CO · Arvada

5,793 Heating and ventilation system component (e.g., air registers, diffusers, filters, grilles, sound attenuators) installation employers nationwide with a credible TCR · 9,007 rated employers in Colorado with headcount on file · 129 employers in Arvada, CO · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Heide & Cook, LLC 8.0 TCR
NAICS-TCR Longacre Company HQ 8.0 TCR
NAICS-TCR Naturescape Design Inc. DBA Naturescape Irrigation 8.0 TCR
NAICS-TCR WFS CHARLOTTE 8.0 TCR
STATE-SIZE Falcon Operations Center 112 FTE
STATE-SIZE Company Office 112 FTE
STATE-SIZE BT Littleton 112 FTE
STATE-SIZE Hiller Denver 112 FTE
CITY-NEAR Sundyne LLC 360 FTE
CITY-NEAR WANCO, Inc. 308 FTE
CITY-NEAR Lumin8 Transportation Technologies, LLC. 298 FTE
CITY-NEAR LivaNova 276 FTE
NAT-TCR Villa Park Fillmore 8.0 TCR
NAT-TCR Stericycle - Fontana,CA 8.0 TCR
NAT-TCR DT Irvine Spectrum 8.0 TCR
NAT-TCR EMS Ambulance 8.0 TCR
NAT-SIZE Glo Electric LLC 112 FTE
NAT-SIZE El Cajon FHC 112 FTE
NAT-SIZE Cleveland Facility 112 FTE
NAT-SIZE Solid State Devices Inc. 112 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, 2021, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.