FREQUENTLY ASKED QUESTIONS

Screw piles install in a single day, without excavation or curing. Every pile is torque-verified at the time of install, giving objective proof of load capacity.

Concrete requires digging, pouring, curing, and cannot be independently verified without third-party testing.

For a full side-by-side comparison on six criteria, see our Screw Piles vs Concrete guide.

Most residential projects fall between $150 and $300 per pile installed. A standard deck (8 to 10 piles) runs $1,200 to $2,500 in total foundation cost.

Pricing varies with pile diameter, soil conditions, and the number of piles needed.

Your local Postech dealer provides a free on-site quote. It's the only way to get a number that reflects your actual site.

Yes. Our dealer network does this frequently, especially for deck restoration, shed stabilization, and cottage foundation rescue work.

The existing structure is temporarily lifted or supported; piles are installed through limited access points; the structure is set back down on the new foundation.

Most projects complete in a day or two. A certified installer confirms access, soil conditions, and structural clearance during the site visit.

Postech piles are hot-dip galvanized to ASTM A123M standards. The zinc coating is metallurgically bonded to the steel.

In Canadian and New England soil conditions, galvanized steel has a service life measured in many decades, usually a minimum of 75 years even in the harshest environments.

Every Postech pile is also backed by a lifetime warranty.

Thermal Piles™ are Postech's proprietary screw piles engineered for cold-climate construction.

An insulation layer inside the galvanized tube breaks the thermal bridge between frozen surface soil and the pile shaft below the frost line, preventing frost heave in conditions where standard piles or concrete would cycle and shift.

Available exclusively through certified Postech dealers in regions where winter construction is common.

Advantages: install in a day, torque-verified load capacity, zero concrete or cure time, minimal site disruption, lifetime warranty, works in cold-weather installations, removable if needed.

Disadvantages: not suited for every soil profile (bedrock under shallow cover is a limit case), requires a certified installer with the right equipment, harder to source for DIY (‘‘Do-It-Yourself’’) projects.

Most common comparisons: concrete piers (slower, excavation-heavy), Sonotube footings (prone to frost heave on most Canadian soils), and helical piles from other manufacturers (inconsistent certification and warranty standards).

Yes. Pergolas, covered patios, and four-season sunrooms are routine projects across the Postech network.

Covered structures have different load profiles than open decks (snow load, wind uplift), and your certified installer accounts for those during the on-site assessment.