Sheet metal duct work installation · Minnesota

Thelen Heating & Roofing, Inc.

Brainerd, MN · ~90 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.1
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Thelen Heating & Roofing, Inc. runs at 181% of its industry's injury rate - more dangerous than the typical Sheet metal duct work installation workplace, earning a grade D.

Thelen Heating & Roofing, Inc.: 5.1 TCR = 181% of Sheet metal duct work installation BLS 2.8 · 2y Form 300A (see methodology below)

Thelen Heating & Roofing, Inc. safety composite

Thelen Heating & Roofing, Inc. scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 33%), 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

54/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.07 per 100 workers

Safer than 33% 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

−3.2

2023→2024

Thelen Heating & Roofing, Inc. injury rate improved

Thelen Heating & Roofing, Inc.'s TCR fell 3.2 from 6.7 in 2023 to 3.5 in 2024. Peak filing year was 2023 at 6.7 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2023=6.7 · 2024=3.5

OSHA ITA Form 300A scorecard

Establishment book 238220 · Brainerd, MN ABOVE-IND · SMALL

Grade D · TCR 5.1 · 181% of ind

  • DART 0.0 DART
  • RANK #72/153
  • PHOTO Hydrofire
  • BOOK 2y book
  • INJ 9 inj
  • SIZE ~90 FTE

Nearest TCR peer: Hydrofire (0.0 TCR gap)

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

Thelen Heating & Roofing, Inc. in the TCR neighbourhood

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

TCR

What this shows Thelen Heating & Roofing, Inc. averages 5.1 TCR (181% of the Sheet metal duct work installation BLS benchmark).

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

Thelen Heating & Roofing, Inc. TCR series: 2023=6.7 · 2024=3.5 · BLS 2.8

Where Thelen Heating & Roofing, Inc. falls in its industry

5,793 Sheet metal duct work installa establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Minnesota alone (the establishments it most directly competes with for workers and contracts): ranked #72 safest of 153 Sheet metal duct work installa employers in Minnesota.

Thelen Heating & Roofing, Inc. (90 employees, TCR 5.1) 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 Thelen Heating & Roofing, Inc.
Thelen Heating & Roofing, Inc. (90 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Thelen Heating & Roofing, Inc. has more employees than the Sheet metal duct work installation 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 3.5 0.0 3 0 0
2023 6.7 0.0 6 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · MN · Brainerd

5,793 Sheet metal duct work installation employers nationwide with a credible TCR · 15,828 rated employers in Minnesota with headcount on file · 75 employers in Brainerd, MN · 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 Hydrofire 5.1 TCR
NAICS-TCR Stuart Mechanical 5.1 TCR
NAICS-TCR The Genesio Company 5.1 TCR
NAICS-TCR Tappouni Mechanical Services, Inc. 5.1 TCR
STATE-SIZE Bushel Boy - Owatonna 90 FTE
STATE-SIZE Radiant Change Construction, LLC. 90 FTE
STATE-SIZE Weis Builders - Minneapolis 90 FTE
STATE-SIZE Kelleher Construction, Inc 90 FTE
CITY-NEAR St Josephs Medical Center 1,012 FTE
CITY-NEAR Crow Wing County 522 FTE
CITY-NEAR Madden's on Gull Lake 262 FTE
CITY-NEAR Central Lakes Colloege - Brainerd and Staples Campuses 258 FTE
NAT-TCR Costr - Sterling 5.1 TCR
NAT-TCR Clarendale of Mokena 5.1 TCR
NAT-TCR Holmes Lumber 167 5.1 TCR
NAT-TCR Fanatics Retail Group Fulfillment, LLC 5.1 TCR
NAT-SIZE Washington Penn - LaFayette 90 FTE
NAT-SIZE Wind Composite Services Group LLC 90 FTE
NAT-SIZE Alpha Q, Inc. 90 FTE
NAT-SIZE Against the Grain Gourmet LLC 90 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. 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.