Updated: Mar 31, 2026
Location
Address
PO BOX 1551, Edmonds, WA, 98026
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Aj Cornerstone Construction
Aj Cornerstone LLC, Edmonds, Po Box 1551, Edmonds, WA (Owned by: Ng, Frank Hak) holds a Construction Contractor, Construction Contractor license and 3 other licenses according to the Washington license board.
Their BuildZoom score of 94 ranks in the top 24% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Aj Cornerstone LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Aj Cornerstone LLC Services
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Aj Cornerstone LLC Contact Information
Phone Number: (425) 312-3513
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Address: PO BOX 1551, Edmonds, WA 98026
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Verified License
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Aj Cornerstone LLC License info
Verified License
| License # | AJCORCL752QF |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Date Issued | 11-06-2025 |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Aj Cornerstone LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | AJCORCL752QF |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Date Issued | 11-06-2025 |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Aj Cornerstone LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AJCORCL810K3 |
| Status | Inactive |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- According to the The City of Tukwila, WA, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Aj Cornerstone LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AJCORCL810K3 |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Aj Cornerstone LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Western Surety Co |
| Bond Value | $12,000 |
Aj Cornerstone LLC Employees
FN
Frank Ng
Partner/Member
NF
Ng, Frank
Owner
NH
Ng, Frank Hak
Owner
YL
Yuk Ng Lee
Partner/Member