Sam the Concrete Man So Kng Co

Sam the Concrete Man So Kng Co appears as active in the Washington State Department of Labor & Industries records we downloaded on November 6, 2026, under construction contractor number SAMCOCM744CJ, expiring February 15, 2028. A $30,000 bond is on record. Insurance of $2,000,000 is on record. Confirm the current status with the state before you sign, because records change daily.

Official Record

License number

SAMCOCM744CJ

Type

Construction Contractor

Status

Active (when downloaded)

Effective

February 15, 2026

Expires

February 15, 2028

Business type

Limited Liability Company

Specialties

General

Bond

$30,000, Western Surety Co

Liability insurance

$2,000,000, Third Coast Insurance Company, through October 6, 2027

Source

Washington State Department of Labor & Industries, downloaded November 6, 2026

Contact

Trades

Concrete & Masonry · General Contractors

Location

Black Diamond, WA 98010

Phone

(425) 531-5721

Map of Black Diamond

Map © OpenStreetMap contributors. Shows the city, not the business address.

Before You Hire

Typical lead time is one to several weeks, depending on weather. Ask:

• What is your license number, and which state or city issued it?
• Can you send a current certificate of liability insurance and proof of workers’ compensation?
• Will the contract list the scope, materials, price, start and finish dates and payment schedule?
• Who pulls the permits, and are they included in the price?
• Who will run the job day to day, and will you use subcontractors?

All 8 questions to ask →

Washington Rules

Washington requires contractors to register with the state. Threshold: Based on activity; no project-dollar floor. Read the Washington license summary.

• Ask about base preparation, thickness, reinforcement and control joints.
• Weather affects both schedule and quality when pouring.