Heating, ventilation and air-conditioning (HVAC) contractors · Illinois

AA Service

Northbrook, IL · ~102 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.0
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

AA Service runs at 180% of its industry's injury rate - more dangerous than the typical Heating, ventilation and air-conditioning (HVAC) contractors workplace, earning a grade D.

AA Service: 5.0 TCR = 180% of Heating, ventilation and air-conditioning (HVAC) contractors BLS 2.8 · 2y Form 300A (see methodology below)

AA Service safety composite

AA Service scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 34%), 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

38/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.04 per 100 workers

Safer than 34% of industry peers

DART rate
F 2.46 per 100 workers

Safer than 34% 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%).

Rising injury rate

AA Service: 3.9 → 6.2 TCR

Peak year 2024 @ 6.2 TCR · DART/TCR 0.49× in 2024

AA Service's TCR rose 2.2 from 3.9 in 2022 to 6.2 in 2024. In 2024, DART was 0.49× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238220 · Northbrook, IL ABOVE-IND · MID

Grade D · TCR 5.0 · 180% of ind

  • DART 2.5 DART
  • RANK #182/230
  • PHOTO Grapids Home Services
  • BOOK 2y book
  • INJ 9 inj
  • SIZE ~102 FTE

Nearest TCR peer: Grapids Home Services (0.0 TCR gap)

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

AA Service in the TCR neighbourhood

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

TCR

What this shows AA Service averages 5.0 TCR (180% of the Heating, ventilation and air-conditioning (HVAC) contractors BLS benchmark).

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

AA Service TCR series: 2022=3.9 · 2024=6.2 · BLS 2.8

Where AA Service falls in its industry

5,793 Heating, ventilation and air-c establishments

Safer than 34% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #182 safest of 230 Heating, ventilation and air-c employers in Illinois.

AA Service (102 employees, TCR 5.0) 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 AA Service
AA Service (102 employees, TCR 5.0) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

AA Service has more employees than the Heating, ventilation and air-conditionin 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 6.2 2.5 5 0 0
2022 3.9 3.9 4 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · IL · Northbrook

5,793 Heating, ventilation and air-conditioning (HVAC) contractors employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 122 employers in Northbrook, IL · 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 Grapids Home Services 5.0 TCR
NAICS-TCR ARCTIC AIR HOME SERVICES, LLC 5.0 TCR
NAICS-TCR C J Hansen Co., Inc 5.0 TCR
NAICS-TCR Vision Air HVAC Inc 5.0 TCR
STATE-SIZE AMEREN ILLINOIS - Champaign 102 FTE
STATE-SIZE FCL Builders, LLC 102 FTE
STATE-SIZE Gateway Construction - Chicago 102 FTE
STATE-SIZE MSM Solutions, Inc. 102 FTE
CITY-NEAR Astellas Pharma US 1,228 FTE
CITY-NEAR Astellas Pharma Global Development 908 FTE
CITY-NEAR Astellas US LLC 896 FTE
CITY-NEAR ILNOR - NORTHBROOK 780 FTE
NAT-TCR Arctic Air Home Services, LLC 5.0 TCR
NAT-TCR West Coast Roofing Co. 5.0 TCR
NAT-TCR Arden Courts of Annandale 5.0 TCR
NAT-TCR Trillium Woods 5.0 TCR
NAT-SIZE Star Island Corporation 102 FTE
NAT-SIZE Arizona Trench Company, LLC 102 FTE
NAT-SIZE OAK 102 FTE
NAT-SIZE Pacific Excavation Inc 102 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, 2022. 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.