Plumbing, heating, and air-Conditioning contractor · New Hampshire

Alliance Mechanical NH

Name: Alliance Mechanical NH Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

West Lebanon, NH · ~28 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 14.2
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Alliance Mechanical NH runs at 508% of its industry's injury rate - far more dangerous than the typical Plumbing, heating, and air-Conditioning contractor workplace, earning a grade F.

Alliance Mechanical NH: 14.2 TCR = 508% of Plumbing, heating, and air-Conditioning contractor BLS 2.8 · 4y Form 300A (see methodology below)

Alliance Mechanical NH safety composite

Alliance Mechanical NH scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on total case rate (tcr) (safer than 3%), 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).

42/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 14.23 per 100 workers

Safer than 3% 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

−28.1

2017→2020

Alliance Mechanical NH injury rate improved

Alliance Mechanical NH's TCR fell 28.1 from 28.1 in 2017 to 0.0 in 2020. Peak filing year was 2017 at 28.1 TCR. In 2020, DART was 0× this establishment's average TCR (severity share of cases).

2017=28.1 · 2018=13.1 · 2019=15.8 · 2020=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · West Lebanon, NH ABOVE-IND · SMALL

Grade F · TCR 14.2 · 508% of ind

DART 0.0 DART
RANK #31/31
PHOTO Bell Cow/MSC
BOOK 4y book
INJ 12 inj
SIZE ~28 FTE

Nearest TCR peer: Bell Cow/MSC (0.0 TCR gap)

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

Air Solutions

14.3
This site

14.2
Bell Cow/MSC

14.2
Silver Tree Pl

14.2
Sabre Plumbing

14.2

What this shows Alliance Mechanical NH averages 14.2 TCR (508% of the Plumbing, heating, and air-Conditioning contractor BLS benchmark).

Alliance Mechanical NH TCR series: 2017=28.1 · 2018=13.1 · 2019=15.8 · 2020=0 · BLS 2.8

Where Alliance Mechanical NH falls in its industry

5,793 Plumbing, heating, and air-Con establishments

Safer than 3% of graded establishments in this industry, whose median TCR is 3.3.

Grade F

More dangerous than peersSafer than peers

Narrower to New Hampshire alone (the establishments it most directly competes with for workers and contracts): ranked #31 safest of 31 Plumbing, heating, and air-Con employers in New Hampshire.

Alliance Mechanical NH (28 employees, TCR 14.2) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Alliance Mechanical NH has fewer employees than the Plumbing, heating, and air-Conditioning 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
2020	0.0	0.0	0
2019	15.8	7.9	4
2018	13.1	4.4	3
2017	28.1	11.2	5

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · NH · West Lebanon

5,793 Plumbing, heating, and air-Conditioning contractor employers nationwide with a credible TCR · 2,718 rated employers in New Hampshire with headcount on file · 29 employers in West Lebanon, NH · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Bell Cow/MSC	FAYETTEVILLE, NC	14.2 TCR
NAICS-TCR	Silver Tree Plumbing and Heating LLC.	MENDOTA HEIGHTS, MN	14.2 TCR
NAICS-TCR	Air Solutions	SAND SPRINGS, OK	14.3 TCR
NAICS-TCR	Sabre Plumbing, Heating, & Air Conditioning, of Des Moines, Iowa, LLC	ANKENY, IA	14.2 TCR
STATE-SIZE	Newington Station	NEWINGTON	28 FTE
STATE-SIZE	Burgess Biopower	BERLIN	28 FTE
STATE-SIZE	Stephens Marquis Associates Inc	MERRIMACK	28 FTE
STATE-SIZE	All States Construction, Inc (Winchester NH )	WINCHESTER	28 FTE
CITY-NEAR	Novo Nordisk US Bio Production Inc.	West Lebanon	231 FTE
CITY-NEAR	08266 - Store #8266 West Lebanon	West Lebanon	161 FTE
CITY-NEAR	8266	West Lebanon	153 FTE
CITY-NEAR	3401 - West Lebanon Main St	West Lebanon	144 FTE
NAT-TCR	Alta Vista Rehabilitation & Healthcare	Brownsville, TX	14.2 TCR
NAT-TCR	Sportworks Northwest, Inc.	Woodinville, WA	14.2 TCR
NAT-TCR	Cherry Hill Haven Traverse City	Traverse City, MI	14.2 TCR
NAT-TCR	Cattlemens Petaluma	Petaluma, CA	14.2 TCR
NAT-SIZE	Morningside Assisted Living of Hopkinsville	Hopkinsville, KY	28 FTE
NAT-SIZE	Reliable Door and Dock, Inc.	Jackson, WI	28 FTE
NAT-SIZE	Joseph Companies (IQHC) 125 W Main	New Prague, MN	28 FTE
NAT-SIZE	Crystal Geyser Water Company	Bakersfield, CA	28 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.