HVAC (heating, ventilation and air-conditioning) contractors · Iowa

Mechanical Air Systems Company

Mason City, IA · ~21 workers · 4 years of OSHA Injury Tracking Application data.

C
Average Safety Record
0.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Mechanical Air Systems Company runs at 0% of its industry's injury rate - about level with the typical HVAC (heating, ventilation and air-conditioning) contractors workplace, earning a grade C.

Mechanical Air Systems Company: 0.0 TCR = 0% of HVAC (heating, ventilation and air-conditioning) contractors BLS 2.8 · 4y Form 300A (see methodology below)

Mechanical Air Systems Company safety composite

Mechanical Air Systems Company scores strongest on total case rate (tcr) (safer than 100% 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).

B

81/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0 per 100 workers

Safer than 100% 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%).

Mechanical Air Systems Company held a steady TCR band

Mechanical Air Systems Company's TCR held near 0.0 from 0.0 in 2017 to 0.0 in 2020. Peak filing year was 2017 at 0.0 TCR.

2017=0.0 · 2018=0.0 · 2019=0.0 · 2020=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Mason City, IA AT/BELOW-IND · SMALL

Grade C · TCR 0.0 · 0% of ind

  • DART 0.0 DART
  • RANK #0/94
  • PHOTO Spectrum Mechanical,…
  • BOOK 4y book
  • INJ 0 inj
  • SIZE ~21 FTE

Nearest TCR peer: Spectrum Mechanical, LLC (0.0 TCR gap)

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

Mechanical Air Systems Company in the TCR neighbourhood

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

TCR

What this shows Mechanical Air Systems Company averages 0.0 TCR (0% of the HVAC (heating, ventilation and air-conditioning) contractors BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-09-26

Mechanical Air Systems Company TCR series: 2017=0 · 2018=0 · 2019=0 · 2020=0 · BLS 2.8

Where Mechanical Air Systems Company falls in its industry

5,793 HVAC (heating, ventilation and establishments

Safer than 100% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Iowa alone (the establishments it most directly competes with for workers and contracts): ranked #0 safest of 94 HVAC (heating, ventilation and employers in Iowa.

Mechanical Air Systems Company (21 employees, TCR 0.0) 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 Mechanical Air Systems Company
Mechanical Air Systems Company (21 employees, TCR 0.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Mechanical Air Systems Company has fewer employees than the HVAC (heating, ventilation and air-condi 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 Illnesses Fatalities
2020 0.0 0.0 0 0 0
2019 0.0 0.0 0 0 0
2018 0.0 0.0 0 0 0
2017 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · IA · Mason City

5,793 HVAC (heating, ventilation and air-conditioning) contractors employers nationwide with a credible TCR · 7,192 rated employers in Iowa with headcount on file · 126 employers in Mason City, IA · 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 Spectrum Mechanical, LLC 0.0 TCR
NAICS-TCR NXP Semiconductors 0.0 TCR
NAICS-TCR Houston, TX HVAC 0.1 TCR
NAICS-TCR Automated Logic Controls (Midwest) 0.1 TCR
STATE-SIZE Tru by Hilton 21 FTE
STATE-SIZE Home 2 Suites 21 FTE
STATE-SIZE Powder Location 21 FTE
STATE-SIZE Johnston Duplex 21 FTE
CITY-NEAR Mercy Medical Center East Campus 1,592 FTE
CITY-NEAR Mercy Medical Center-Mason City-MHS-IA/NE 1,590 FTE
CITY-NEAR MercyOne North Iowa Medical Center 1,556 FTE
CITY-NEAR CURRIES 683 FTE
NAT-TCR Meijer 208 0.0 TCR
NAT-TCR Atlanta - Phipps 0.0 TCR
NAT-TCR Binghamton 0.0 TCR
NAT-TCR Detroit 0.0 TCR
NAT-SIZE Omahaline Hydraulics 21 FTE
NAT-SIZE Ridley, Inc 21 FTE
NAT-SIZE 101 Troutbrook 21 FTE
NAT-SIZE Osco Incorporated 21 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: 2020, 2019, 2018, 2017. 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.