FMCSA Carrier Profile
JOHN W FROCK PLUMBING & HEATING LLC
Owner / Officer: John W Frock
Active
No Safety Rating
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
1st pct · No inspection records on file
✓ No risk flags found on authority or insurance records
Vetting Notes
JOHN W FROCK PLUMBING & HEATING LLC is an active FMCSA-registered motor carrier based in Westminster, Maryland, operating under DOT 4221007. No high-severity flags were found on authority or insurance records. No FMCSA roadside inspection records are on file for this carrier yet. Authority and safety history are clean as of this page's last update.
FMCSA Registration
DOT Number
4221007
Operating Status
Active
Safety Rating
Not Rated
MCS-150 Filed
March 4, 2026
FMCSA Registration
April 5, 2024
Contact Information
Address
191 Bachmans Valley Rd, Westminster, MD 21158-3109
Phone
Cell Phone
Email
Owner / Officer
John W Frock
Officer 2
Kim Frock
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Safety Percentile
1st percentile
vs. peer carriers
✓ Below FMCSA alert threshold (65th pct) · lower percentile = fewer violations than peers · source: FMCSA SMS
Other Carriers in Westminster, MD
Data sourced from FMCSA MCMIS via Socrata. Last updated: July 29, 2026.
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