Carrier profile · USDOT 1950471 · Updated Jun 13, 2026

HILLER LLC

DBA HILLER PLUMBING HEATING COOLING AND ELECTRICAL

155 power unitsLocal · 1 statesNASHVILLE, TN80/100
AUTHORITY STATUS UNKNOWN
Verified linkshappyhiller.comFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative

Vehicle OOS 100.0%24-mo cumulative
050%
Driver OOS 0.0%24-mo cumulative
030%

Every inspection in the window pooled — 2 vehicle and 2 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

50.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 25.0 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

No roadside inspections on the FMCSA record in this window

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.0 / unit·yr
thin signalabundant signal
Few roadside inspections for a 155-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
155
Inspections · 24 mo
2
Annualized
≈1 / yr
Coverage
≈0.0 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
0violations
clean · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
Vehicle Maintenance
26.25measure
SMS · per-BASIC

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 393.43 Parts & accessories (vehicle condition)Vehicle Maintenance4 · 4 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving3 · 0 OOS
  • 383.23 Operating without a valid CDLDriver Fitness2 · 2 OOS
  • 392.9 Failure to secure load / cargo not securedUnsafe Driving2 · 2 OOS
  • 393.100 Cargo securement (general)Vehicle Maintenance2 · 2 OOS
  • 393.130 Cargo securement — heavy vehicles/equipmentVehicle Maintenance2 · 2 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance2 · 0 OOS
  • 392.8 Driving of commercial motor vehiclesUnsafe Driving1 · 0 OOS
  • 393.40 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
  • 391.41 No / expired medical certificateDriver Fitness1 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 10 inspections — a clean logging history.

Crash history· 11 total · 1 in 24 mo

11
Total crashes
1
In last 24 mo
0
Fatal
4
Injury
YearCrashesFatalInjuryTow
20251001
20241001
20201011
20171001
20162012
20151010
20142002
20131011
20111001
DateStateFatalitiesInjuriesTow-away
Jul 16, 2025TN00Yes
Jun 6, 2024TN00Yes
Jul 18, 2020TN01Yes
May 5, 2017TN00Yes
Jun 15, 2016AL02Yes
Mar 25, 2016TN00Yes
Jan 7, 2015TN01No
Oct 31, 2014TN00Yes
Oct 13, 2014TN00Yes
Jun 27, 2013TN01Yes
Oct 10, 2011TN00Yes