Prostone LLC

Tile, Ceramic, Mosaic, Natural and MFG Stone · Kent, WA · License #PROSTL*760DL

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License facts

Prostone LLC is one of 119 Tile, Ceramic, Mosaic, Natural and MFG Stone contractors registered in Kent, registered with WA L&I since 2024. Current filings: $15,000 surety bond (continuous) and $1,000,000 liability coverage through Mar 12, 2027. A surety bond has been on file since 2024.

License type: CONSTRUCTION CONTRACTOR
Effective date: Mar 13, 2024
Expiration date: Mar 13, 2028
UBI: 605436212
Business type: Limited Liability Company
Phone: (253) 249-1155
Location: Kent, WA 98032

Source: WA L&I contractor registration — verified Aug 13, 2026. Applies to every row above.

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Bond & insurance on file

Bond firm	Amount	Effective	Expiration
Philadelphia Indemnity Ins Co	$15,000	Mar 12, 2026	Continuous — until canceled
NORTH RIVER INSURANCE COMPANY THE	$6,000	Mar 12, 2024	Canceled Apr 17, 2026

Insurance company	Amount	Agency	Effective	Expiration
Farmers Ins Exchange	$1,000,000	Jerry Zelinsky Agency	Mar 12, 2024	Mar 12, 2027

What the bond and insurance requirements mean for homeowners

Washington requires specialty contractors to file a $15,000 surety bond with the Department of Labor & Industries as a condition of registration ($30,000 for general contractors). This contractor's current filing shows a $15,000 bond.

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
Borisalexi Hernandezmiranda	Mar 13, 2024

What is a Tile, Ceramic, Mosaic, Natural and MFG Stone contractor licensed to do in Washington?

This specialty registration covers installing tile, ceramic, mosaic, and natural or manufactured stone — floors, walls, showers, backsplashes, and similar surfaces. The registration is limited to this trade. The registration requires a $15,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 119 Tile, Ceramic, Mosaic, Natural and MFG Stone contractors registered in Kent.