Keystone Concrete — compliance record
The full vetting file: federal registrations, authority history, insurance, inspections, record changes, and recent coverage — the checks a broker or shipper runs, in one place.
Vetting summary
Inspections
13 on file
Out-of-service
Within normal range vs national averages
Email identity
Company domain
Federal identity
Registration snapshot
Legal name
Stewart Builders Inc
DBA
Keystone Concrete
Entity type
Carrier
Physical address
23000 Nw Lake Drive, Houston, TX 77095-5344
Phone
(713) 983-8002
Power units
30
Drivers
29
First on record
—
Last MCS-150 filing
—
Hazmat flag
No
Operating authority
Dockets & filings
No L&I dockets on file for this DOT number.
Out-of-service rates
Driver OOS
0.0%
National average ≈ 5.9% · 13 inspections on record
Vehicle OOS
38.5%
National average ≈ 20.9% · 13 inspections on record
Email & web forensics
On-file email
kcpdot@keystoneconcrete.com — company domain
Domain age
keystoneconcrete.com registered 1999-03-15 (27 years)
Mail host
Microsoft 365
From the FMCSA on-file contact, public domain registration (RDAP), and live DNS.
Crash record — last 24 months
3
Reportable crashes
3
Tow-aways
1
With injuries
0
With fatalities
Most recent: TX 12/2025 · TX 02/2025 · TX 09/2024 — from the federal crash file; recordable crashes regardless of fault.
Safety record
Inspection history
| Date | State | Level |
|---|---|---|
| Jun 30, 2026 | TX | Level II — Walk-around |
| Mar 4, 2026 | TX | Level II — Walk-around |
| Feb 3, 2026 | TX | Level I — Full |
| Jan 28, 2026 | TX | Level II — Walk-around |
| Nov 4, 2025 | TX | Level I — Full |
| Sep 30, 2025 | TX | Level II — Walk-around |
| Aug 11, 2025 | TX | Level I — Full |
| May 8, 2025 | TX | Level II — Walk-around |
| Dec 9, 2024 | TX | Level IV — Special |
| Nov 8, 2024 | TX | Level III — Driver-only |
| Oct 22, 2024 | TX | Level II — Walk-around |
| Mar 14, 2024 | TX | Level II — Walk-around |
| Aug 23, 2023 | TX | Level II — Walk-around |
Most recent 13 of 13 inspections on file.
Activity log
Record changes
TenFourHQ re-syncs the federal record daily and logs every field that changes — address moves, fleet-size jumps, authority flips. Sudden changes are a classic fraud tell.
No changes recorded since TenFourHQ began tracking this company.
In the news
Recent coverage
No recent news coverage found for "Keystone Concrete" — for most small carriers, no news is good news.
Via Google News — headlines may include similarly-named companies; verify before acting.
Vetting toolkit
Verify it yourself
FMCSA SAFER snapshot ↗
The official company snapshot, straight from FMCSA.
FMCSA SMS safety profile ↗
Safety Measurement System — BASIC scores and crash history.
L&I authority record ↗
Licensing & Insurance: authority, insurance, and BOC-3 on file.
Search court records ↗
Quick sweep for litigation and judgments.