Permitting & Engineering

Look at the ways Robbins and Company fixes common foundation problems.

Robbins and Company utilizes the Grip-Tite Push Pier System for structural foundation repair where the actual foundation is lifted and supported by large steel brackets that slip under the foundation footing.
Each bracket is supported by a steel tube hydraulically driven down to bedrock or proper load bearing strata, stabilizing the foundation and preventing further settling. Each pier is individually anchored and tested for successful load bearing.

Grip-Tite has over 70 years of experience invested in developing a superior product. The engineered design has passed the rigorous testing required to obtain a legacy report from the International Code Council.

WA State Contractors No. ROBBICH169NQ

To view engineering data click on the reports below:


Serving The Pacific Northwest since 1952

We are so confident you will be happy with our work that in most cases we require no payment until the work is completed.


Helix Technical Report

Helical Leads and Extensions

Square Tube Helical Piles

Helical Pier Installation

Helical Pile Compression Capacity and Required Torque


Grip-Tite Wall Anchor Site Manual


Grip-Tite Product Properties

Foundation Pier Components

Slab Pier Brackets

Lateral Earth Pressure Parameters