K T Building Supply INC
General · Tukwila, WA · License #KTBUIBS937BZ
K T Building Supply INC is one of 368 General contractors registered in Tukwila, registered with WA L&I since 2007. Registered longer than roughly 75% of General contractors in Tukwila. Current filings: $1,000,000 liability coverage through Mar 18, 2027.
How confident can you be in K T Building Supply INC?
Are they licensed, bonded, and insured?
Active license and $1,000,000 liability on file — checked against WA L&I records, updated daily.
Are they who they say they are?
Not yet verified — K T Building Supply INC hasn't claimed this listing. Own this business? Claim it free.
Do other pros stand behind them?
No endorsements yet from other licensed contractors in Tukwila.
Do they have jobs on record?
Not yet measured — K T Building Supply INC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.
Subser doesn't do star ratings or reviews — just verified records.
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Jan 9, 2007
- Expiration date
- Apr 28, 2027
- UBI
- 602635064
- Business type
- Corporation
- Phone
- (206) 262-1138
- Location
- Tukwila, WA 98188
Source: WA L&I contractor registration — checked Aug 18, 2026. Applies to every row above.
Registration is current through Apr 2027.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Travelers Cas Insurance Co of | $1,000,000 | Diamond Cut Insurance Group | Mar 18, 2025 | Mar 18, 2027 |
What the bond and insurance requirements mean for homeowners
Washington requires general contractors to file a $30,000 surety bond with the Department of Labor & Industries as a condition of registration.
The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.
Principals
| Name | Start date |
|---|---|
| Kevin Guohua Tang | Jan 9, 2007 |
| Winnie Yong Xi Liu Tang | Mar 4, 2013 |
What is a General contractor licensed to do in Washington?
A general contractor in Washington is registered with the Department of Labor & Industries to perform or oversee work in multiple building trades. General contractors can take on whole projects — remodels, additions, new construction — and can hire specialty subcontractors for individual trades. The registration requires a $30,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 368 General contractors registered in Tukwila.
Looking for reviews of K T Building Supply INC?
Subser doesn't have reviews or star ratings. This page shows K T Building Supply INC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own K T Building Supply INC? Claim the listing free. Worked with K T Building Supply INC? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Aug 18, 2026. Subser doesn't do star ratings or reviews — just verified records.