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
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 5817 FEMRITE DR, MADISON, WI, 53718
- Operation
- Interstate
Contact
- Phone
- (608) 274-6890
- Cell
- (608) 395-9998
- Fax
- (608) 274-6894
- Web domain
- coolsys.com
Registration
- Officers
- Candi Mehlberger · Christopher David Downing
- USDOT / docket
- 3973619 · MC-1485630
- First registered
- Oct 21, 2022
- Last MCS-150
- Oct 21, 2022
- FMCSA safety rating
- Not rated
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
—CDL drivers
—Annual mileage
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.