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Carrier profile · USDOT 1089568 · Data as of Oct 7, 2026

Windoor Building Supply

Mullins, SC · Interstate carrier · Since 2003
No MC authorityNot rated by FMCSANo hazmat
Cargo carriedGeneral FreightBuilding MaterialsConstructionDoors
View on FMCSA SAFERCall (843) 464-1557
8
Power units
3
Drivers
11
Inspections · 24 mo
0
Crashes · 24 mo
120K
Annual miles
23 yr
Registered
100
/ 100
Clear to load

Operating legally with a clean record

No problems found in FMCSA authority, insurance, inspection or crash data.

How we scored it · 5 factors
Operating authority20/20
Insurance20/20
Out-of-service rates20/20
Crashes & rating20/20
Continuity & identity20/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026
Vehicle out-of-service
0.0%▼ below avg
National 22.26% · 0 of 5 inspections
Driver out-of-service
0.0%▼ below avg
National 6.67% · 0 of 11 inspections
Crashes
0
0 fatal0 injury0 tow-away
Crash rate 0.00 per 1M mi
Total inspections
11
Driver inspections
11
Vehicle inspections
5
People injured
0
Fatalities
0
FMCSA rating
Not rated

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

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Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026

No operating authority (MC/FF docket) on file. Private and intrastate carriers don't need one; interstate for-hire carriers and brokers do.

Equipment

SELF-REPORTED ON MCS-150
8
Power units
8
Trucks
3
Tractors owned
3
Trailers owned
3
Drivers
2
CDL drivers
Not registered for hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstatePrivate Property
Cargo carried
General FreightBuilding MaterialsConstructionDoors
Annual mileage
119,671 mi (2025)

Identity & federal record

FMCSA census · MCS-150
USDOT
1089568
MC / docket
None
Legal name
Windoor Building Supply
DBA
—
Entity type
Carrier
Operation
Interstate
First registered
Jan 22, 2003
Last MCS-150
Dec 23, 2025
Safety rating
Not rated
Drivers (CDL)
3 (2)
Hazmat
No
Business type
—

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Unique phone number
Not shared with any other active USDOT.
Unique email address
Not shared with any other active USDOT.
Unique street address
Not shared with any other active USDOT.

Frequently asked

What is Windoor Building Supply's USDOT number?

Windoor Building Supply's USDOT number is 1089568.

Is Windoor Building Supply authorized to operate?

It does not hold MC operating authority, which private and intrastate carriers do not need.

What is Windoor Building Supply's safety record?

Over the last 24 months: 11 roadside inspections, a 0.0% vehicle and 0.0% driver out-of-service rate, and 0 reportable crashes (0 fatal). Not rated by FMCSA.

How big is Windoor Building Supply's fleet?

8 power units and 3 drivers per its MCS-150 filed Dec 23, 2025.

Where is Windoor Building Supply located?

Windoor Building Supply is located at 3706 E Hwy 76, Mullins, SC, 29574. Phone: (843) 464-1557.

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Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.