What Are Helical Piles? (Simple Explanation for Homeowners)
- DownForce Piling
- 5 days ago
- 2 min read
If you are planning a new deck, an addition, or fixing a sinking foundation in Calgary, you’ve likely heard the term helical piles. But unless you’re an engineer, the name alone doesn't tell you much.
Think of a helical pile as a giant industrial wood screw for your house. Instead of digging a massive hole and filling it with concrete, we "screw" these steel shafts deep into the earth to provide a rock-solid foundation.
Here is a simple breakdown of everything a homeowner needs to know about helical piles.
The Anatomy of a Pile
A helical pile consists of a central steel shaft with one or more helix-shaped plates (the "threads" of the screw) welded to the bottom. These plates are what provide the lifting and holding power.
How They Are Installed
Unlike "driven" piles that are hammered into the ground with loud, vibrating machinery, helical piles are twisted in using a hydraulic power head attached to an excavator or skid steer. This means less noise and no vibration that could crack your existing windows or drywall.
Reaching "Good" Soil
The "magic" of a helical pile is its length. In many parts of Alberta, the top few feet of soil are "unstable" (they freeze, thaw, and move). We screw the pile down until the helix reaches dense, stable soil or bedrock that can actually support the weight of your structure.
No Digging, No Mess
Traditional concrete footings require a "sonotube," which means digging a large hole and hauling away piles of dirt. With helical piles, there is virtually no excavation. We leave your lawn and landscaping almost exactly how we found it.
Instant Load Bearing
This is the biggest win for homeowners: Concrete takes days to cure; steel does not. As soon as the last pile is in the ground, your contractor can start building. You can go from an empty yard to a framed deck in a single afternoon.
They Are Removable and Eco-Friendly
Because they are screwed in, they can also be unscrewed. This makes them the perfect choice for temporary structures or eco-conscious homeowners. They don't leach chemicals into the soil and leave a much smaller carbon footprint than massive concrete pours.
Weather Doesn't Matter
As we’ve discussed in our other posts, Calgary winters don't stop us. Because we aren't waiting for a chemical reaction (like concrete drying), we can install helical piles in rain, snow, or -20°C temperatures without any loss in quality.
Why Choose Downforce Piling?
Understanding what helical piles are is the first step; getting them installed correctly is the second. At Downforce Piling, we use calibrated equipment to measure exactly how much "torque" is used during installation. This ensures every pile we install is guaranteed to hold the weight of your home or project.
Ready to start your project on a solid foundation? Contact us for a quote today.
