SCREW PILE FOUNDATIONS FOR HOME ADDITIONS

Yes. Postech screw piles are installed using compact equipment that can work in tight clearances alongside an existing foundation wall.

This is one of the main advantages over excavation-based methods, which require working room that damages adjacent structures or landscaping.

Depth depends on local frost line depth and soil bearing capacity. In most of Canada, piles are installed 5 to 8 feet below grade, or deeper if soil conditions require it.

Your Postech installer performs torque measurements during installation to confirm the pile has reached adequate load-bearing soil, and only stops driving the pile when he gets below the frost line.

Yes. Postech Thermal Screw Piles™ are engineered to support single and two-storey home additions.

Pile diameter and configuration are selected based on the structural loads of your specific project.

A typical addition footprint requires 6 to 12 piles. Installation takes 3 to 5 hours in most cases. Concrete footings require 24 to 72 hours of curing before any load can be applied.

With screw piles, your contractor can begin framing the same day.

Screw piles perform well in a wide range of soil types including clay, sandy soil, and fill. Rocky or very dense soil may require assessment.

Your local Postech installer will evaluate your site conditions before installation and discuss any special requirements.

Postech guarantees its galvanized steel screw piles against movement caused by ground freezing or thawing for the useful life of the pile, which is a minimum of 75 years in the harshest environments.

We also guarantee that the piles will support the structure for which they were installed, provided installation followed Postech's specifications.