US · FMCSA ACTIVE AUTHORITY INSURED HAZMAT
STACK BROS MECHANICAL CONTRACTORS INC
dba STACK BROS
Superior, WI 54880 · DOT 1280175 · MC1583591
Company profile
Web-discovered · as of 2026-07-30
Established in 1890, Stack Brothers Mechanical Contractors Inc. is a specialty mechanical contracting company providing installation, repair, and maintenance for HVAC, plumbing, and civil concrete systems, serving commercial and residential clients throughout the Upper Midwest.
Fleet use
Specialized service
Operating scope
Regional
Service model
dedicated
Equipment
specialized, dump
Ownership
Private
Employees
51-200
Networks & associations
Focus on Energy
Industries served
constructionplumbinghvacutilityroad_freight_carrier
HQ · 2801 Hill Avenue, Superior, WI 54880
Current active business verified via owned domain and ongoing mechanical construction and utility system services in Superior, WI.
Registry record
Source FMCSA · as of 2026-07-08
Fleet size
134
power units · corroborated
Activity
road freight carrier
for hire licence
In operation since
2004
143 drivers
US compliance
Source FMCSA L&I / SAFER · as of 2026-07-12
Operating authority
Active
Insurance on file
Yes (BIPD)
TRAVELERS INDEMNITY COMPANY · $750,000
Out of service
No
Safety rating
UNRATED
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