Polyurethane Concrete Lifting – Frequently Asked Questions

Polyurethane jacking uses lightweight foam injected through small holes to lift sunken slabs, curing in minutes. It's cleaner, faster, and longer-lasting than mudjacking, which uses heavier cement slurry and larger holes. Polyurethane is ideal for quick, durable fixes, while mudjacking may be used in larger industrial applications.

• Requires less material and energy than full slab replacement
• Closed-cell foam prevents erosion and water infiltration
• Some foams are made from recycled or bio-based components
• Durable and long-lasting, reducing the need for repeated repairs

Polyurethane lifting is effective for:

• Sunken driveways, sidewalks, and patios
• Garage or basement floors
• Slab foundation settlement (with engineering oversight)
• Void filling due to erosion or poor soil compaction 

It cannot repair severe cracks caused by upward heaving or structural breaks.

Professionally installed foam can last 20–30 years or more, depending on soil stability and water conditions. It doesn’t erode or wash away like mudjacking slurry and is designed for long-term structural integrity.

Yes — once cured, polyurethane foam is chemically inert and water-resistant, especially if closed-cell. Some foams are NSF/ANSI 61 certified, making them safe for use near potable water and wells.

Absolutely. The foam cures quickly even in cold temperatures and resists moisture absorption, which prevents freeze-thaw cracking. It’s ideal for regions like Central Oregon.

Yes! Foam lifting is widely used on pool decks due to its moisture resistance and minimal disruption. It also handles heavy warehouse loads and quickly restores level surfaces with little downtime.

Yes — polyurethane foam is commonly used to fill voids and re-level garage floors, especially where erosion or poor compaction has occurred. It restores strength and evenness without removing the slab.

Yes — it’s the preffered choice most of the time due to it being a non-invasive option with small drill holes and precision lifting. It preserves historic materials and is ideal for gently restoring old foundations or floors. Always consult a structural engineer when working with historic sites.

• Soil erosion from water drainage or plumbing leaks
• Expansive clay that swells and shrinks
• Poorly compacted soil
• Heavy loads over time
• Freeze–thaw cycles in colder climates 

These conditions create voids or weak spots that cause slabs to sink or crack.

• Visible tilt or sinking
• Cracks across the surface
• Water pooling near the slab
• Trip hazards
• Gaps under steps or concrete edges
• Doors sticking (for interior slabs)