Carrier profile · USDOT 518180 · Updated Jun 13, 2026
Southland Insulators of Md
DBA DEVERE INSULATION CO HARFORD INSULATION CO
52 power unitsavg 5.5 yrLocal · 2 statesBALTIMORE, MD94/100
AUTHORITY STATUS UNKNOWN
Network & Fraud
Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.
No shared-VIN flow in the last 12 months
None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.
Show all-time history (2 trucks · 1 carriers)
Across all inspections on record: USDOT 1670475
Shares a registration email domain with other carriers
@devereinsulation.com — 4 carriers: USDOT 1379579USDOT 2944790USDOT 3118102
Shares a company officer with other carriers
chris rzepkowski — 6 carriers: USDOT 1049939USDOT 1379579USDOT 1670475USDOT 2536895USDOT 2944790
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)5252
Observed (24 mo)4343
Shared w/ other carriers22
Registered and roadside-observed capacity are broadly consistent.
Shared-VIN cross-links· units inspected under more than one USDOT
| VIN | Carriers | Inspections | First seen | Last seen |
|---|---|---|---|---|
| 54DK6S1FXPSA50049View sourced platform decode | 2 | 4 | Nov 13, 2024 | Aug 28, 2025 |
| 1FVACWFBXSHVU8698View sourced platform decode | 2 | 2 | Jun 3, 2025 | Jun 4, 2025 |
Owner / group view· confidence: email domain + officer
Owner / group view
Affiliated authorities
Collapses 7 related authorities · joined by email domain + officer
- Authorities
- 7
- Combined power
- 161
- States
- 3
- Oldest authority
- Mar 31, 1993
- Active now
- 6
- SOUTHLAND INSULATORS OF MD· viewingUSDOT 51818052PU
- SOUTHLAND INSULATORS OF DE LLCUSDOT 104993946PU
- SOUTHLAND INSULATORS OF PA LLCUSDOT 137957919PU
- DEVERE INSULATION HOME PERFORMANCE LLCUSDOT 294479018PU
- SOUTHLAND INSEALATORS LLCUSDOT 167047518PU
- DELMARVA SPRAY FOAM LLCUSDOT 25368956PU
- EAST COAST MOLD REMEDIATION LLCUSDOT 31181022PU