Master Insulation and Services (DOT# 2340459) – FMCSA Carrier Profile
DOT# 2340459● Active
Updated monthly · 2026-03-09
This carrier is active with no crashes on record.
Master Insulation and Services is a registered motor carrier with the FMCSA under USDOT number 2340459. The company operates from Mount Vernon, WA and maintains an active operating status with 3 power units and 3 drivers on record.
Safety Rating
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Company Information
Address1725 Railroad Ave, Mount Vernon, WA, 98273
Phone(360) 424-5179
Entity TypePrivate Property
OperationIntrastate (Non-Hazmat)
Power Units3(Small carrier)
Drivers3
MCS-150 FiledAugust 26, 2019
Annual Mileage1 mi (2018)
Inspection Summary
All-time Inspections
All-time7
Total
2
OOS
0
Driver OOS
2
Vehicle OOS
7 inspections — relatively low volume, which may indicate a smaller or newer carrier.
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service. 28.6% — above the national vehicle OOS average of ~21%. Review BASICS scores below.
Crash History
✅No crashes reported (FMCSA data)
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Frequently Asked Questions
What is USDOT Number 2340459?
USDOT number 2340459 is assigned to Master Insulation and Services, an active motor carrier registered with the FMCSA, based in Mount Vernon, WA.
How many inspections has Master Insulation and Services had?
Master Insulation and Services has recorded 7 total inspections with 2 out-of-service orders, representing an OOS rate of 28.57%.
Where is Master Insulation and Services located?
Master Insulation and Services is headquartered at 1725 Railroad Ave, Mount Vernon, WA 98273.
What does "Not Rated" mean?
"Not Rated" means the FMCSA has not conducted a formal compliance review for this carrier. It does not indicate a safety problem — many active carriers operate without a formal rating.
Is zero crashes always a good sign?
Generally yes, but context matters. A carrier with zero crashes and very few inspections may simply have limited road exposure. Always review crash data alongside inspection volume and fleet size.
What is a normal OOS rate?
The national average vehicle out-of-service rate is approximately 21%. Driver OOS averages around 5%. Rates significantly above these thresholds may indicate recurring compliance issues.
How often is FMCSA data updated?
FMCSA publishes updated carrier data monthly. This page reflects the most recent available snapshot, updated on the date shown above.
Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 2340459 · Last updated: 2026-03-09. View official FMCSA record →