Mk & Sons Masonry

Is Mk & Sons Masonry Licensed?

Washington L&I records list Mk & Sons Masonry with registration number MKSONSM750MA and status ACTIVE, valid until Jul 1, 2027. The business address on file is in Shoreline, WA 98155.

License Details

License #

MKSONSM750MA

Status

ACTIVE

License type

Construction Contractor

Specialty

General

First effective

Jul 1, 2025

Expires

Jul 1, 2027

Business type

Individual

UBI (state business ID)

605897414

City

Shoreline, WA 98155

Bond and Insurance on File

Surety bond

$30,000 · NGM Insurance Company
Effective May 23, 2025 · Until Canceled

Liability insurance

$1,000,000 · TRISURA SPECIALTY INSURANCE CO
Expires Aug 25, 2027

What Active Status Means

The registration is current: L&I has a bond and liability insurance on file and the term has not ended. ACTIVE is necessary but not sufficient, so also check the expiry date, the bond and the insurance below.

Can this business work under this registration? Can work while it stays active.

The registration has 243 days left before it expires on Jul 1, 2027. Check that date against your project timeline.

All status codes are explained in Washington Contractor License Statuses Explained.

How This Record Compares in Shoreline

Mk & Sons Masonry has held registration MKSONSM750MA for 1.3 years. The median for the 212 active general contractors with a Shoreline address is 4.7 years, and 60 of them have held their registration for 10 years or more, so this registration is newer than most in Shoreline. 36 of them registered in the last 12 months.

100% of these Shoreline records have a surety bond on file and 100% have liability insurance on file. The median insurance amount on file is $1,000,000; this business lists $1,000,000, which is equal to that median. Insurance amounts are what the insurer reported to L&I; they are not a rating of the business.

Record Timeline

• May 23, 2025: $30,000 surety bond with NGM Insurance Company took effect.
• Jul 1, 2025: Current registration MKSONSM750MA took effect.
• Oct 30, 2026: Our copy of the L&I record was taken.
• Jul 1, 2027: Registration expires unless renewed.
• Aug 25, 2027: TRISURA SPECIALTY INSURANCE CO liability policy on file expires.

Checks for General Contractors

• General contractors must file a $30,000 surety bond (RCW 18.27.040, effective July 1, 2024). This record lists a $30,000 bond. See General vs Specialty Contractor Registration in Washington.
• Use a general contractor when the project involves more than one trade. Subcontractors on your job must be registered too.
• Compare bids on scope, schedule and payment terms, not just the total.
• More detail: How to Choose a General Contractor in Washington.

How to Verify This Contractor

1. Use the Confirm on L&I Verify button and search registration MKSONSM750MA or UBI 605897414. The status there is the official one.
2. Check that the name on your bid or contract matches Mk & Sons Masonry exactly (a individual).
3. On L&I Verify, look for bond claims, lawsuits and any newer registration.
4. Ask for a certificate of insurance sent directly by the insurer, and compare it with the TRISURA SPECIALTY INSURANCE CO policy on file.

A full walkthrough is in How to Check a Contractor License in Washington.

Record data as of Oct 30, 2026, from the Washington L&I contractor file.

Other General Contractors in Shoreline

Active general contractor registrations with a Shoreline address in the same L&I file. Listing here is not an endorsement.

• 2112 Homes LLC · General · expires Sep 25, 2027
• 4 R Construction LLC · General · expires Mar 4, 2028
• A Sterling Envrnmntl Wa LLC · General · expires Mar 10, 2028
• A.V Renewpressure & G Dsgn LLC · General · expires Jul 30, 2027
• Ace Of Trades LLC · General · expires Dec 26, 2027
• Action Pressure Washing LLC · General · expires May 22, 2028
• Aldos Construction LLC · General · expires Jul 9, 2028
• Alex Tree Service LLC · General · expires Nov 4, 2027

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