Manufacturer Credentials & Structural QA
Supportworks & CHANCE® Systems
Registered Washington General Construction Contractor (WA L&I License #MATVEFR837K5). Maintained active continuous 0,000 surety bond and liability insurance on file with WA L&I since 2017. Specialized in steep-slope pin piles and helical deep foundations across Puget Sound.
Certification Verification Source:
https://matveyfoundationrepair.com/foundation-repair/helical-piers/
Installation Capabilities & Engineering Scope
- ✓ Puget Sound Steep Slope Pin Piles
- ✓ Seismic Liquefaction Helical Underpinning
- ✓ Commercial Retaining Wall Anchors
- ✓ Hydraulic Torque Verification
Documented Engineering Project Case Study
Seattle Coastal Bluff Slope Stabilization and Pier Underpinning
Installed helical screw piles through saturated glacial advance outwash along a high-bank Puget Sound waterfront home to arrest seismic subsidence and foundation rotation.
Pricing Model & Benchmarks
💰 Pricing Model: Quote-based on site slope and depth
Pricing reflects Pacific Northwest geotechnical depth and slope access conditions; typical piers range $1,800–$3,400/pier.
Pricing Verified Status: Quote-Based / Industry Standard Model • Last Inspected: 2026-10-21