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FMCSA Carrier Profile

DEL R GILBERT & SON BLOCK CO INC

Laconia, NH

CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active registration · no operating authority  ·  DOT 55605
Active Conditional
22
Power Units
11
Drivers
27
Inspections
29%
Vehicle OOS
—
Insurance

Broker Vetting Summary

Key signals from current FMCSA records

Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Conditional
10.5% OOS · 27 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
  • Active FMCSA registration, but no active for-hire operating authority on record
  • Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
  • No active insurance filing found on record
  • FMCSA safety rating: Conditional
  • Vehicle out-of-service rate 28.6% — above the 20.7% national average
  • Driver out-of-service rate 0.0% — below the 5.5% national average
  • 27 FMCSA inspections on record

Company Information

Registration, contact and cargo details

FMCSA Registration

DOT Number
55605
Safety Rating
Conditional
Entity Type
Corporation
Operation Classification
Private (property)
MCS-150 Filed
August 5, 2026
FMCSA Registration
June 1, 1974
Annual Mileage
275,356 mi (2025)

Contact Information

Address
427 Province Rd, Laconia, NH 03246-1331
Owner / Officer
Charleen Marble
Officer 2
Brian J Gilbert

Cargo Types

Building MaterialsConstruction MaterialsOther Cargo

Safety Snapshot

Out-of-service rates, violations and crashes

Safety & Inspection Summary

Total Inspections
27
Driver Inspections
24
Vehicle Inspections
8
Out-of-Service Violations
3

Violations by Category

Vehicle Maintenance10
Unsafe Driving4
Hours of Service0

OOS Rates vs. National Average

Driver OOS Rate0.0% · national avg 5.5%
✓ Below national average
Vehicle OOS Rate28.6% · national avg 20.7%
⚠ Above national average (7.9pp higher)
10.5% of 19 inspections in the last 24 months put a driver or vehicle out of service — 30th percentile among carriers with 10–24 inspections (lower is better). CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.

Inspection Trend by Year

2026
8 insp · 2 OOS
2025
10 insp · 0 OOS
2024
8 insp · 1 OOS

Violation Rate by Category

Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.

Vehicle Maintenance 3 of 7 inspections
Unsafe Driving 2 of 19 inspections
Hours of Service 0 of 19 inspections
Driver Fitness 0 of 19 inspections
Controlled Substances 0 of 19 inspections

Fleet & Operating Areas

Observed roadside activity and equipment

Where This Carrier Operates

States where this carrier's roadside inspections were recorded
FewerMore
NH19
VT5
ME1

Fleet & Equipment (19)

Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Tractor-Trailer Power units Class 5–8 · trailers up to 45 ft
Power units
~13
of 22 reported to FMCSA
Trailers
~6
seen at inspection
Equipment types observed
Truck
6
Tractor
5
Flatbed
3
Semi-trailer
3
Chassis / Incomplete
1
Not Applicable
1
Units on record
VehicleTypeVINInspectionsWith OOS
2017 Peterbilt 567 Truck · Class 8 1NPCXPEX9HD409540 5 —
Bens Semi-trailer 5DMFABTB98C002206 4 —
2006 Mack CV (Granite) Truck · Class 8 1M2AG10C66M043187 3 —
2000 Mack CH Tractor · Class 8 1M1AA18Y6YW119228 2 —
2006 Mack CHN Tractor · Class 8 1M1AJ06YX6N006138 2 —
2006 Mack CV (Granite) Truck · Class 8 1M2AG10C46M043186 2 —
2017 Peterbilt 567 Tractor · Class 8 1XPCDP9XXHD409541 2 —
2019 Ram 5500 Chassis / Incomplete · Class 5 3C7WRNAL6KG581799 2 1
Benson Tru Semi-trailer 5DMFABTB78C002205 2 —
1993 Fontaine Trailer Co. Flatbed · 45 ft 13N145202P1553266 1 —
Show all 19 units
VehicleTypeVINInspectionsWith OOS
1993 Fontaine Trailer Co. Flatbed · 45 ft 13N145206P1553268 1 1
2007 Mack CV (Granite) Tractor · Class 8 1M1AG11Y17M054162 1 1
2026 Mack Pinnacle Tractor · Class 8 1M1PN4GY2TM019388 1 —
2021 Mack Pinnacle Not Applicable · Class 8 1M1PN4GYXMM007281 1 1
2001 Mack CL Truck · Class 8 1M2AD62C21M011459 1 —
2005 Mack CV (Granite) Truck · Class 8 1M2AG11C75M016108 1 —
2008 Mack GU (Granite) Truck · Class 8 1M2AX07C18M003537 1 —
Trlr Semi-trailer 1T9PA48B1T1066753 1 1
2022 Norstar Trailers Flatbed · 12 ft 50HTB1224N1077935 1 1
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.

Inspection Details

Each roadside inspection with its violations

Inspection Records (27)

DateReport #LocationLevelViolOOSShipperUnit TypeMakeVINLicense
September 22, 2026 52A0001322 VT, VT II 2 — —
Straight Truck
PETERBILT
1NPCXPEX9HD409540
NH 2068AP
393.9A-LBL Lighting - Backup lamp inoperative Lighting
393.9A-LLPL Lighting - License plate lamp inoperative Clearance Identification Lamps/Other
August 25, 2026 1274004063 WINDHAM NH I 3 1 —
Truck Tractor
Semi-trailer
MACK
FONTAINE TRAILER CO.
1M1PN4GYXMM007281
13N145206P1553268
NH 6AP665
NH T684567
393.75A3-TAOL OOSTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS Tires
393.48A-BIBD Drum Brake - Inoperative other than a steering axle Brakes All Others
393.9A-LLPL Lighting - License plate lamp inoperative Clearance Identification Lamps/Other
July 22, 2026 52A0001161 VT, VT III — — —
Truck Tractor
Semi-trailer
PETERBILT
BENS
1XPCDP9XXHD409541
5DMFABTB98C002206
NH 1921AP
NH T203016
July 21, 2026 1086002841 NH, NH II 3 1 SAME
Straight Truck
Semi-trailer
RAM
NORSTAR TRAILERS
3C7WRNAL6KG581799
50HTB1224N1077935
NH 4734624
NH T793436
396.3A1-BOS OOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination Brake Out Of Service
392.7A-D Driver - Failed to conduct pre-trip inspection or make use of required parts and accessories Inspection Reports
393.48A-BIHE Hydraulic/Electric Brake - Inoperative other than a steering axle. Brakes All Others
May 21, 2026 1230002017 NH, NH II — — —
Truck Tractor
MACK
1M2AG10C46M043186
NH 5724AR
May 12, 2026 1201000370 NH, NH III — — DEL R GILBERT & SON BLOCK CO., INC.
Truck Tractor
Semi-trailer
PETERBILT
BENS
1XPCDP9XXHD409541
5DMFABTB98C002206
NH 1921AP
NH T203016
May 11, 2026 0963000259 NH, NH III — — —
Truck Tractor
PETERBILT
1NPCXPEX9HD409540
NH 2068AP
April 17, 2026 9753000159 YORK - SCALES, ME I — — GILBERT BLOCK
Truck Tractor
Semi-trailer
MACK
FONTAINE TRAILER CO.
1M1PN4GY2TM019388
13N145202P1553266
NH 39AP58
NH TT8394
December 8, 2025 1230001883 SANBORNTON, NH III — — —
Straight Truck
MACK
1M2AG10C66M043187
NH 5725AR
September 16, 2025 1086002176 NH, NH I — — SAME
Straight Truck
MACK
1M2AG10C66M043187
NH 5725AP

Shippers Seen at Inspections

Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.

ShipperInspectionsMost recent
GILBERT BLOCK 1 April 17, 2026
PICK AND SHOVEL 1 September 24, 2024

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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 18, 2026. Verify directly on FMCSA SAFER Web.

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