Carrier profile · USDOT 3973619 · MC-1485630 · Updated Jun 13, 2026

Certified Refrigeration & Mechanical LLC

DBA COMFORT SYSTEMS|NORTHWEST REFRIGERATION SERVICES|METROPOLITAN FOOD SERVICE EQUIPMENT|DONS SHEET METAL

125 power unitsMADISON, WI50/100
NO OPERATING AUTHORITYMC-1485630 NO AUTHORITY
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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

No roadside inspections on record.

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

No roadside inspections on the FMCSA record in this window