Stabilized a sloped kitchen foundation in a Seattle home by installing concentric push piers along outer walls, reinforcing the garage slab, and providing selective lifting, ensuring long-term support while minimizing stress on floors and adjacent rooms.
Structural Repair
Overview
Location: Seattle, WA
Service: Kitchen Foundation Stabilization & Push Pier Installation
Home Type: Early-Era Single-Family Home
Issue: Sloped kitchen floor in the back right corner due to uneven foundation and garage slab issues, with visible exterior cracks and prior modifications contributing to instability.
Goal: Stabilize and level the kitchen foundation using push piers while minimizing stress on existing framing and preserving interior finishes.
The Challenge
Noticeable slope in the kitchen floor, especially the back right corner.
Garage floor slab in poor condition, with previous modifications likely affecting floor layout.
Exterior foundation cracks near the garage.
Small localized area to stabilize, requiring careful attention to avoid creating additional stress or uneven transitions in adjacent rooms.
Work had to be planned in phases to accommodate budget and minimize collateral damage.
Key Takeaway
This project highlights the effectiveness of push pier systems for localized foundation stabilization, particularly in areas with uneven floors and prior structural modifications. Chumley’s approach balanced structural support with careful attention to interior finishes and long-term durability.
Our Solution
Chumley Structural & Foundation Repair implemented a targeted foundation stabilization plan:
Concentric Push Pier Installation: Installed approximately 7 push piers along outer walls, spaced 4’ on center, covering 20’ along the side and 10’ along the back under the deck and future French door location.
Foundation Stabilization: Focused on stabilization as the primary objective, lifting selectively where necessary to reduce slope without stressing adjacent rooms.
Temporary Shoring & Frame Support: Planned for the optional installation of temporary shoring beams and posts to support floor framing for minor lifts, ensuring safe and controlled elevation adjustments.
Careful Observation & Phased Work: Monitoring interior surfaces during stabilization to prevent undesirable ramping or transitions between floor sections.
Results
✅ Kitchen foundation stabilized, reducing slope and preventing further structural compromise.
✅ Push pier system provided long-term support for the affected area.
✅ Minimal impact on existing interior finishes and floor transitions.
✅ Phased approach allowed homeowner to manage project budget while addressing critical structural concerns.
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