What are the advantages of a helical pile?

A helical pile gives you a deep, screw-in foundation support that reaches stable soil below the frost line, installs fast with no big excavation, holds weight the moment it goes in, and can lift a settled foundation back toward level. At 603 we self-perform helical installs in-house, and our helical piers carry a 25-year engineered warranty. Helical piers run $2,700 per pier for the first three, then $2,200 per pier after that.

Here is what those advantages actually mean for your house.

It reaches soil that holds

Most foundation settling in New Hampshire comes from the dirt under the footing. A lot of that dirt is disturbed backfill. That is the looser fill the builder put back when the house went up. It drains slowly, it holds water, and over time it compresses. Your footing rides down with it. Then the frost gets involved. NH frost heave pushes and shifts as the ground freezes and thaws each year.

A helical pile skips past that trouble. It is a steel shaft with helix plates near the tip. We turn it into the ground like a giant screw until the plates bite into firm, load-bearing soil well below the frost line. The weight of your house then transfers down the shaft to that stable layer. The shallow problem soil no longer carries the load.

No big dig

Other deep supports can mean heavy excavation and a torn-up yard. Helical piles go in with a hydraulic drive head and a much smaller footprint. We can often work in tight spots, close to the house, even inside a basement or crawl space when needed. Less digging means less mess, less landscape to put back, and a faster job.

You know it is holding before we leave

This one matters and most folks never hear about it. As we drive each pile, the machine reads the torque. Torque ties directly to how much load that pile can carry. So we are not guessing. We install to a target and we can confirm the capacity right there in the ground. Many other repairs you take on faith. With a helical pile you get a measured number.

It works right away

Concrete supports need time to cure before they hold weight. A helical pile carries load the moment it is seated. We can pin a settling section in place, and where the structure allows, we can lift it back toward its original level. Doors that stuck start to swing again. Cracks that kept opening stop moving.

It lasts

These are galvanized steel, set deep in stable soil, out of the freeze-thaw zone that wrecks shallow footings. Our helical piers carry a 25-year engineered warranty. That warranty transfers, but the transfer is conditional, so it can void if another contractor or a new homeowner alters the work. Keep the repair as we built it and the coverage stays intact.

When you do not need them

Plenty of foundation problems are not settling, and you should not pay for piers you do not need. A single hairline crack from concrete curing is usually a job for crack injection. A wall bowing inward from soil pressure is often a carbon-fiber strap or a power brace job, not a pile. Helical piers are for vertical settling, when the footing has dropped and the structure needs to be carried by deeper soil. If that is not what is happening at your house, we will tell you, and we will point you to the right fix.

The way to know is to look. We do a free inspection and a free estimate, and we get your quote back within 24 hours. If financing helps, we work with Hearth, subject to approval, and we make nothing on it.

Read more on our structural and foundation repair hub, the helical piers page, and the supplemental support options. Every repair stands behind the 603 guarantee.

For background on foundations, soils, and frost, the U.S. Department of Energy’s Building America program at basc.pnnl.gov is a solid neutral source. If a settling claim touches your homeowners policy, the Insurance Information Institute at iii.org explains what is typically covered.

Settling does not fix itself. Call us at 603-610-1770 or book your free inspection at /contact/, and we will tell you what your foundation actually needs.

Related questions

How long do helical piers last? They are galvanized steel set in stable soil below the frost line, and ours carry a 25-year engineered warranty. The transfer is conditional, so leave the work as we built it to keep coverage.

Are helical piers better than push piers? Both are deep supports we install. Helical piles screw in and give a measured torque-to-capacity reading as they go, and they work well in lighter structures and tight spots. Push piers use the home’s weight to drive past tough soils. We pick based on your soil and load, and we tell you which fits at the inspection.

Can helical piers lift my foundation back to level? Often yes. A helical pile holds load the moment it is seated, so where the structure allows, we can lift a settled section back toward its original position. Sometimes the safe call is to stabilize where it sits. We confirm which at the inspection.

Do I need helical piers for a bowing basement wall? Usually not. Bowing from soil pressure is typically a carbon-fiber strap or a power brace repair. Helical piers are for vertical settling. We will tell you which problem you have before you spend a dollar.