we value Our Subcontractors
Los Angeles + Philadelphia projects
• Clear scopes • Clean coordination • Professional closeout
Trade Partners & Subcontractor Prequalification
We value trade partners who communicate early, carry clean scopes, and keep commitments. Complete the form below to start prequalification. If there’s a fit, you’ll receive an email with next steps and required documentation.
Start Prequalification
Contact Info
Email your trade + service area and we’ll route you to the estimating team.
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Subcontractors FAQ
Complete the prequalification form to start the process. If there’s a fit, you’ll receive an email with next steps and required documentation.
TriStone runs projects in Los Angeles and Philadelphia. Include your trade and service area so we can route you appropriately.
Teams that communicate early, carry clean scopes, and keep commitments—so coordination stays professional and closeout stays clean.