Cookies & Your Privacy
This website uses cookies to ensure you get the best experience on our website. More Information >
Polyurethane concrete lifting, also called polyjacking, has become the preferred method for raising and leveling concrete slabs across residential, commercial and industrial projects. Compared to traditional mudjacking, polyurethane foam injection concrete offers greater control, is less labor intensive, and a cleaner application that contractors can build a business around.
At HMI, we work on both sides of the industry. We manufacture professional concrete lifting equipment and operate an active local contracting division. We have over 50 years of combined, real-world experience, and that perspective shapes everything we build, teach and support.
This site is protected by reCAPTCHA and the
Google Privacy Policy and Terms of Services apply.
In 2 days, we teach you everything you need to know to start your own concrete raising company!
At HMI, we manufacture complete polyurethane concrete lifting systems purpose-built for contractors. Each system contains everything you need to confidently offer concrete raising services to your clients.
At the center of our systems are our air-purged injection guns, including the EliteONE and EliteTWO. Both guns feature an air purge function that keeps injection ports open, allowing operators to slow down, reassess the lift and return to a prior injection point without redrilling. That level of control is a significant advantage in real-world jobs, where precision, adaptability and efficiency directly impact results.
The EliteONE offers our patented, contractor-proven design engineered specifically for concrete lifting. The EliteTWO builds on that foundation with electric fluid control, remote operation, height-adjustable design and on-wheels mobility. These additional features deliver greater precision and jobsite efficiency for higher-performance applications.
Our all-in-one poly concrete raising van system is compact and maneuverable, making it perfect for various jobsites and applications
The HMI poly concrete lifting trailer is a complete turnkey solution that provides convenience on wheels.
Our poly concrete raising truck system can easily and efficiently handle large-scale concrete raising projects.
We offer essential concrete lifting accessories that enhance the performance and versatility of your concrete raising equipment.
Occasionally, we have used poly concrete raising equipment available at competitive prices.
Contractors and property owners alike are moving away from traditional cement-based slurry methods, also called mudjacking, for good reason. Polyurethane concrete lifting uses a dual-component, foam that you inject beneath the slab as a liquid. Once injected, the material expands to fill voids, compact the soil and lift concrete with precision. The process relies on controlled injection, allowing technicians to raise slabs incrementally while monitoring response in real time.
Compared to mudjacking, polyurethane concrete lifting foam offers:
Polyurethane foam for concrete lifting is a 1:1 ratio dual-component system injected under pressure. Achieving and maintaining that ratio is critical, as it’s what creates consistent foam density and predictable lift. HMI systems help operators monitor A-side and B-side pump pressures, ensuring proper proportioning throughout the injection process.
Foam density, cure characteristics and expansion behavior vary depending on the chosen material. Lightweight and high-density options allow you to tailor your approach based on soil conditions, slab size and the type of void you’re addressing.
Slab lifting costs vary based on slab size, access and underlying conditions. For contractors, the better question is return on investment. Polyurethane concrete lifting equipment represents a serious business decision. That’s why HMI focuses on helping contractors understand pricing, estimating and job selection.
When used correctly, polyurethane lifting allows contractors to offer a premium service with strong margins and repeatable demand in markets with freeze/thaw cycles, soil movement and aging infrastructure.
If you’re a business owner or contractor looking to add or expand a concrete lifting service, consider partnering with HMI. At HMI, we provide equipment, foam materials, training, engineering support, marketing resources and ongoing technical help, without franchise fees or territory restrictions.
Get started by signing up for our training today.
4466 Custer Street
Manitowoc, WI 54220