STACK BROS MECHANICAL CONTRACTORS INC
DBA: STACK BROS
FMCSA Live Status
Fleet & equipment
- Power units
- 134
- Drivers · CDL
- 143 · 24
- Annual miles
- 37k unreliable
| Type | Own | Term | Trip | Total |
|---|---|---|---|---|
| Trucks | 129 | 0 | 0 | 129 |
| Tractors | 5 | 0 | 0 | 5 |
| Trailers | 35 | 0 | 0 | 35 |
Registration
- Cargo Operation
- Intrastate HM
- Scope
- Intrastate (Within 100 miles)
- Registered
- 08-27-2004 (22 yrs)
- MCS-150 Update
- 10-15-2026
- FRED Score Date
- Nov 08, 2026
- Officer
- WILLIAM E STACK
Cargo
Not graded: operating authority revoked since Oct 27, 2026 (Involuntary Suspension) with no roadside inspection or crash recorded since, and no active authority on file. Graded again once it is seen operating or the authority is reinstated; referral.
See what’s behind this grade
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- Expected crashes over the next 12 months, against similar fleets
- What drives the grade: crash history and roadside record
- Worth a closer look: the flags to ask about, with the questions
- How it compares with similar fleets, per truck and per mile
- Cargo risk, and news reports linked to its crashes
- How the grade is calculated, and its history week by week
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Track record
What they get cited for
20 violations · 24 months-
Vehicle maintenance No alert17 · 5 OOSBrakes 7 · Lights 5 · Tires 2 · Cargo securement 1 · Other parts 2
-
Unsafe driving No alert2 · 0 OOSSeat belt 1 · Speeding 1
-
Driver fitness No alert1 · 1 OOSNo valid CDL 1
-
Hours of service No alert0
-
Drugs & alcohol No alert0
Violations by quarter
Tap a category to show or hide itCrashes
24 monthsNo reportable crashes on the FMCSA record in the last 24 months.
Insurance filed with FMCSA
FMCSA record through Nov 7, 2026- Liability (BIPD)
-
$750,000 · Travelers Indemnity Coon record since Sep 27, 2023 · FMCSA minimum $1,000,000
- Cargo filing
- not required by FMCSA (household-goods motor carriers only); the cargo policy is not on FMCSA's record
- One liability insurer throughout
- No gap in filed liability coverage while liability was required
FMCSA filings only, not a policy audit. Not part of the FRED grade. Wrong or out of date?
Where it happens
- Wisconsin (HQ) 8
- Minnesota 1
FMCSA records
BASIC measures and every inspection, violation and crash, sortable and filterable.
FMCSA BASIC Scores
AB Property| BASIC | Insp w/ Viol | Measure | Alert |
|---|---|---|---|
| Unsafe Driving | 2 | 0.10 | |
| HOS Compliance | 0 | 0.00 | |
| Driver Fitness | 1 | 0.22 | |
| Controlled Substances | 0 | 0.00 | |
| Vehicle Maintenance | 6 | 8.17 |
SMS record data is sourced from FMCSA's Safety Measurement System (06-MAY-25 – 25-NOV-25) and may cover a different time window than the scoring window used for the FRED grade (Oct 1, 2023 → Oct 31, 2026). Counts here may differ from the grade's in-window counts.