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
Verified linkscoolsys.comLinkedInFacebookInstagramYouTubeFMCSA SAFER

Equipment

Haulable capacity (power units only — trailers are towed context), equipment mix, and the VIN-decoded unit roster. Click any VIN to trace that unit across every carrier that has run it.

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150)
125
Observed power (24 mo)
—
Trailers (towed)
—

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.