Annandale

Helical piles in Annandale, Minnesota

Annandale is a lake country town, and Minnesota lake and cabin foundations, docks and lifts on wet or sandy sites are common helical pier uses. The state's glacial history leaves soft, wet or variable soil in many places, which is a frequent reason foundations settle.

Frost adds to it. Minnesota Rules 1303.1600 sets the minimum footing depth for frost protection at 3-1/2 feet in southern Zone II and five feet in northern Zone I, unless an engineer competent in soil mechanics determines otherwise. Confirm your zone with the local building department.

Helical pile companies serving Annandale

The listed company based in Annandale:

• Byars Underground: a general contractor in the Annandale area whose listed work is underground and excavation work. Ask which foundation systems it installs before booking.

Costs and what to ask

Foundation Repair HQ reports typical helical pier costs of about $2,000 to $4,000 each installed, averaging near $3,000, with hand-digging adding $200 to $500 per pier. Pricing in Annandale turns on depth to firm soil, pier count and access. Read our helical pier cost guide for more.

Questions to put to any installer in Annandale:

• Does an engineer review the site and stamp the pile design before work starts?
• Will you record installation torque pile by pile and hand me the logs?
• What shaft diameter and helix configuration do you propose, and is it galvanized?
• Do you handle the permit with the Annandale building department, and what does the warranty cover?

Get written quotes from at least two companies and ask each to explain how the pier count and depth were determined.

For more companies and state-level guidance, see Minnesota helical pile installers.