Schedule a free foundation inspection to find out whether push piers or helical piers are the right solution for your home.
If your home is showing signs of foundation settlement, such as cracked walls, sticking doors, or uneven floors, a pier system is likely the recommended repair. But not all piers work the same way. The two most common foundation repair methods are push piers and helical piers, and each one is designed for different soil conditions, structural loads, and types of foundation problems.
Understanding the difference between these two systems helps you ask better questions during your inspection and feel confident about the repair plan your foundation expert recommends. In this guide, we break down how each pier type works, when one is preferred over the other, what happens during installation, and why a professional evaluation is the only reliable way to determine the right solution for your home.
Here is what you need to know: Helical piers are steel shafts with spiral plates that screw into the ground, while push piers are smooth steel tubes driven down using the building’s weight. Each system reaches stable soil through a different method, and the right choice depends on your home’s weight, soil profile, and the severity of settlement. A professional foundation inspection is the only reliable way to determine which pier system your home needs.
- Helical piers work in varied soil types and do not require the building’s weight for installation
- Push piers are driven to refusal and load-tested during installation for maximum capacity
- Both systems use galvanized steel and provide permanent foundation stabilization
- Oklahoma’s expansive clay soils make a professional soil evaluation essential before choosing a pier type
- A free inspection is the first step toward the right repair
What Are Helical Piers and How Do They Work?
Helical piers are steel shafts with one or more spiral-shaped plates (called helices) welded along the shaft. They look similar to a large screw. During installation, a hydraulic torque motor rotates the pier into the ground. As the helices turn, they pull the shaft deeper into the soil until the pier reaches a stable, load-bearing layer.
The installer monitors torque readings throughout the process. When the measured torque reaches a specific threshold, it confirms that the pier has engaged soil with enough resistance to support the structure’s weight. The pier is then connected to the foundation using a steel bracket, and the home’s load is transferred from the weak surface soil down through the pier to stable ground below.
Key Characteristics of Helical Piers
- Installation method: Rotated (screwed) into the soil using hydraulic torque equipment
- Capacity verification: Torque correlation confirms adequate soil resistance
- Typical depth: Varies by soil conditions, often reaching 10 to 30+ feet
- Structure weight requirement: Does not depend on the weight of the building for installation
- Best soil types: Effective in a wide range of soil conditions, including soft, sandy, or expansive clay soils
Because helical piers do not require the building’s weight to be driven into the ground, they are versatile enough for lighter structures, additions, and even new construction projects where the building has not yet been completed.
What Are Push Piers and How Do They Work?
Push piers (also called resistance piers) are smooth steel tube sections that are hydraulically driven straight down beneath your foundation. Unlike helical piers, push piers rely on the weight of the existing structure as counter-resistance during installation. A heavy-duty steel bracket is attached to the footing, and a hydraulic ram pushes each pier section into the ground, one at a time, until the pier reaches bedrock or a soil layer it physically cannot penetrate.
This “drive-to-refusal” method means each push pier is naturally load-tested during installation. The installer knows the pier has reached competent bearing soil because the hydraulic system registers the resistance required to stop further advancement.
Key Characteristics of Push Piers
- Installation method: Hydraulically driven straight down using the building’s weight
- Capacity verification: Each pier is load-tested during installation
- Typical depth: Can reach significant depths, often 15 to 50+ feet, until refusal
- Structure weight requirement: Requires sufficient structural weight to drive the pier
- Best soil types: Ideal when stable bedrock or dense consolidated soil layers exist at depth
Push piers are commonly selected for heavier structures, including two-story homes and large single-story buildings, where the structure’s mass provides the force needed to advance the pier to stable ground.
Push Piers vs. Helical Piers: Key Differences
Choosing between push piers and helical piers is not a preference decision. It is an engineering decision based on your home’s specific conditions. Here is how the two systems compare across the factors that matter most:
| Factor | Helical Piers | Push Piers |
|---|---|---|
| Installation method | Screwed into ground with torque motor | Driven into ground with hydraulic ram |
| Relies on building weight | No | Yes |
| Capacity verification | Torque readings during installation | Load-tested at refusal point |
| Soil suitability | Wide range, including soft and expansive soils | Best with deep bedrock or dense strata |
| Typical applications | Light to heavy structures; varied soil types | Heavy structures; deeper bearing layers |
| Installation disruption | Minimal excavation required | May require moderate excavation |
| New construction use | Yes | Typically existing structures only |
Both systems use galvanized steel components that resist corrosion, bending, and warping. Both provide a permanent foundation stabilization solution when properly matched to the site conditions.
The Critical Variable: Soil Conditions
In Oklahoma, soil conditions vary significantly even within the same neighborhood. The expansive clay soils found across much of the Oklahoma City and Tulsa metro areas expand when wet and shrink when dry. This seasonal movement is one of the most common causes of foundation repair issues in the state.
The type of soil beneath your home, how deep stable bearing layers sit, and how much moisture variation your property experiences all factor into which pier system will perform best. There is no one-size-fits-all answer, which is why a thorough inspection is the starting point for every repair.
When Are Helical Piers the Right Choice?
Helical piers tend to be recommended in situations where:
- The soil profile is varied or soft. The helical plates grip into the soil at multiple depths, distributing the load across a broader area. This makes them effective in Oklahoma’s expansive clay soils, which can shift seasonally.
- The structure is lighter. Homes with crawl spaces, smaller footprints, or lighter construction may not provide enough weight for push pier installation. Helical piers do not need the building’s mass to function.
- Access is limited. Helical piers can often be installed in tighter spaces, including interior crawl space repair applications where equipment access is restricted.
- The project involves new construction. Because helical piers work independently of the structure’s weight, they can be installed before the building is constructed.
- Immediate load-bearing is needed. Helical piers can support loads as soon as installation is complete.
When Are Push Piers the Right Choice?
Push piers are typically recommended when:
- The structure is heavy enough to drive the piers. Two-story homes, large single-story structures, and buildings with concrete slab foundations often provide the mass needed for push pier installation.
- Bedrock or dense soil exists at depth. Push piers are driven until they physically cannot go deeper, which means they are anchored on the strongest bearing layer available. In areas where bedrock sits below the surface, push piers reach it directly.
- Significant settlement has already occurred. Push piers are effective for lifting a foundation back toward its original position because the hydraulic equipment can apply controlled upward pressure once the pier reaches stable ground.
- Maximum load capacity is required. Push piers can support extremely heavy loads, making them well-suited for larger homes and commercial structures.
In many Oklahoma foundation repairs, push piers are the preferred solution because the state’s geology often features accessible bearing layers at moderate depths beneath the expansive clay surface soils.
What Happens During Pier Installation?
Whether your home needs helical piers, push piers, or a combination of both, the general installation process follows a similar four-step approach. Here is what to expect:
Step 1: Site Preparation and Excavation
For exterior installations, the crew excavates soil around the foundation to expose the footing where piers will be placed. For interior installations, a section of flooring may be removed to access the footing from inside the home. The amount of excavation depends on the pier type and the number of piers your foundation requires.
Step 2: Bracket Attachment
A heavy-duty steel bracket is secured to the foundation footing at each pier location. This bracket is the connection point between the pier and your home’s structure. It transfers the building’s load from the foundation to the pier.
Step 3: Pier Installation
- For helical piers: A hydraulic torque motor rotates each pier into the ground. The installer monitors torque readings in real time to confirm the pier has reached competent soil.
- For push piers: A hydraulic ram pushes steel tube sections into the ground one at a time, using the building’s weight as resistance, until the pier reaches refusal at a stable layer.
Step 4: Foundation Stabilization and Potential Lifting
Once all piers are installed and secured, the foundation’s weight is transferred onto the pier system. In many cases, the hydraulic equipment can apply controlled pressure to lift settled areas of the foundation back toward the original position. The crew confirms alignment and ensures the system is performing as designed.
Most residential pier installations are completed within one to several days, depending on the number of piers required and site access conditions. The process is designed to be minimally disruptive to your daily routine.
Why a Professional Inspection Determines the Right Solution
The question of push piers vs. helical piers cannot be answered by looking at cracks in your walls or searching symptoms online. The right solution depends on factors that can only be evaluated on-site:
- Soil composition and bearing depth beneath your specific property
- The weight and design of your structure, including foundation type (slab, crawl space, basement)
- The severity and pattern of settlement your home has experienced
- Access conditions around and under the foundation
- Local environmental factors, including drainage patterns and seasonal soil moisture changes common in Oklahoma
At Vesta Foundation Solutions, our foundation experts conduct thorough inspections to assess all of these variables. We use both helical piers and push piers because no single product is the right answer for every home. The inspection determines which system, or combination of systems, will provide permanent stabilization for your specific situation.
Schedule Your Free Inspection
If you have noticed signs of foundation settlement, such as wall cracks, sticking doors and windows, uneven floors, or gaps between walls and ceilings, do not wait for the problem to worsen. Foundation issues only progress over time.
Schedule your free inspection with Vesta Foundation Solutions. One of our foundation repair experts will evaluate your home, explain what is happening beneath your foundation, and recommend the right pier system to restore your home’s stability. We serve homeowners throughout Oklahoma City, Tulsa, Edmond, Lawton, Broken Arrow, Stillwater, and surrounding areas.
Frequently Asked Questions About Push Piers and Helical Piers
What is the main difference between push piers and helical piers?
Push piers are smooth steel tubes driven into the ground using the building’s weight and a hydraulic ram. Helical piers are steel shafts with spiral plates that are screwed into the ground with a torque motor. The key difference is how they reach stable soil: push piers use downward force and refusal, while helical piers use rotation and torque-based verification.
How deep do helical piers go?
The depth depends on soil conditions at your property. Helical piers are installed until torque readings confirm they have reached a stable bearing layer. Depths commonly range from 10 to 30+ feet, but the specific depth is determined during installation based on real-time soil resistance data.
Can push piers and helical piers be used on the same home?
Yes. In some cases, foundation experts recommend a combination of both systems on the same structure. Different areas of a home may have different soil conditions or load requirements, making one pier type more appropriate in certain locations and the other type better suited elsewhere.
How long do helical piers and push piers last?
Both pier systems are designed to be permanent solutions. They are manufactured from galvanized steel that resists corrosion, bending, and warping. When properly installed to reach competent bearing soil, both helical piers and push piers provide long-term foundation stabilization backed by warranties.
Do I need push piers or helical piers for my home?
The only reliable way to determine the right pier system is through a professional foundation inspection. The decision depends on your soil conditions, the weight and design of your structure, the severity of settlement, and other site-specific factors. Contact Vesta Foundation Solutions for a free inspection to find out which solution your home needs.
Will pier installation disrupt my landscaping or daily routine?
Pier installation involves some excavation around the foundation, but the process is designed to be minimally invasive. Most residential projects are completed within one to several days. Your foundation expert will explain the scope of work during your inspection so you know exactly what to expect.