Screw piles and poured concrete solve the same problem in very different ways. Here is how they compare on the dimensions that decide residential projects.
Foundation Comparison
Which Foundation Is Right for Your Project?
Screw piles (also called helical piles) install in a single day, with no excavation or curing time, and are backed by a lifetime warranty. For most residential projects across Canada, they cost less than poured concrete and outperform it in freeze-thaw conditions.
SIDE BY SIDE
What Each Foundation Actually Involves
Concrete
Postech
Price
$$$
$$
Install time
2 to 5 days + curing
1 day, no curing
Site preparation
Excavation + formwork
No digging, zero backfill
Load verification
Engineer-calculated
Real-time torque-verified
Frost protection
Risk of heave if too shallow
Anchored below the frost line
Reversibility
Permanent
Piles can be removed
Warranty
Varies by contractor
Lifetime on every Postech project
KEY DIFFERENCES
6 Differences That Actually Matter
Install Time
1 day vs 2 to 5 days, before curing even starts.
Frost Resistance
Postech piles are anchored below the frost line and thermally insulated to prevent ice formation at the pile base. Shallow concrete isn't.
Site Impact
Zero excavation. Your lawn, trees, and driveway stay intact.
Real Cost
When you factor in excavation, formwork, concrete, and site restoration, screw piles are typically comparable or cheaper than concrete.
Versatility
Installable in winter, on slopes, in tight spaces, with no concrete truck required.
Reversibility
Piles can be removed. Concrete stays forever.
COMMON QUESTIONS
Screw Piles vs Concrete, Answered
Yes, for residential and light commercial applications.
Load-bearing capacity is engineer-calculated and verified at installation.
Postech screw piles meet building code requirements across Canadian provinces and US states for decks, sunrooms, additions, sheds, and residential foundations.
Properly installed screw piles do not move with frost.
Your local Postech certified installer first makes sure to drive every pile past the frost line before stopping, anchoring it in stable, unfrozen soil.
Postech's Thermal Pileâ„¢ technology then insulates the inside of the steel tube, preventing ice formation at the pile base all year long, where uninsulated piles typically fail.
For heavy structures requiring a full slab or load-bearing concrete wall, poured concrete may be required by local building codes.
Otherwise, for most residential projects, screw piles meet all applicable code requirements.
Screw pile cost depends on 3 main variables: the number of piles required, soil conditions on your site, and local labour rates.
Total project cost is typically comparable to or lower than concrete when excavation and site restoration are factored in.
Get a free quote from a certified Postech installer for an accurate estimate based on your soil and project.
Yes. Postech piles are backed by 4 independent certifications:
- CCMC (Canadian Construction Materials Centre): accepted by building inspectors and engineers across Canada without additional justification.
- ICC-ES: US equivalent, meets International Building Code (IBC) and International Residential Code (IRC).
- ISO 9001: quality management certification covering manufacturing at our Sherbrooke, QC (Canada) facility.
- CWB: Canadian Welding Bureau certification on all steel fabrication.
Every installer also completes Postech's own certification program before their first job. The lifetime warranty applies only when installed by a certified Postech dealer.
FIND YOUR INSTALLER
Ready to Start Your Project?
A certified Postech installer can assess your site and get you a free quote, usually within 48 hours.