Mudjacking vs polyurethane foam leveling
Mudjacking vs foam leveling: two ways to lift a sunken slab. Compare cost, durability, weight, and which method fits your situation.
Mudjacking (also called slabjacking or pressure grouting) is the traditional method: a crew drills 1–2 inch holes through the sunken slab and pumps a cement-sand-water slurry underneath to fill voids and raise the concrete back to grade. Cost is $500–$1,500 per slab section, roughly 50–75% less than replacing the slab. The material is heavy (about 100 lbs per cubic foot), which provides stability but adds load to already-weak soil. Holes are noticeable but can be patched. Results are immediate and the slab is walkable the same day. Polyurethane foam injection (polyjacking) is the modern alternative: smaller holes (5/8 inch), lightweight expanding foam (2–4 lbs per cubic foot — 25x lighter than mudjack slurry) injected under the slab. The foam expands in 15 seconds, filling voids precisely and lifting the slab with minimal additional soil load. Cost is $1,000–$3,000 per slab section — about 50% more than mudjacking. The foam is waterproof (won't erode or wash out), cures in 15 minutes (vs 24–48 hours for mudjacking), and the smaller holes are nearly invisible. Both methods last 5–10+ years, but foam is more predictable because it doesn't depend on soil conditions — mudjack slurry can wash out in areas with poor drainage or high water tables.
Funderingsherstel vs concrete-repair
| Feature | Funderingsherstel | concrete-repair |
|---|---|---|
| Best for | Choose mudjacking when budget is the primary concern and soil conditions are stable — it costs 30–50% less than foam and works well for driveways, sidewalks, and garage floors in areas with good drainage and stable clay or gravel sub-base. | Choose polyurethane foam when you need minimal disruption (15-minute cure, tiny holes), when the slab is near a pool or area with water exposure, when soil conditions are questionable (foam won't wash out), or for interior slabs where heavy slurry could overload the sub-base. |
Call a funderingsherstel when…
Choose mudjacking when budget is the primary concern and soil conditions are stable — it costs 30–50% less than foam and works well for driveways, sidewalks, and garage floors in areas with good drainage and stable clay or gravel sub-base.
Call a concrete-repair when…
Choose polyurethane foam when you need minimal disruption (15-minute cure, tiny holes), when the slab is near a pool or area with water exposure, when soil conditions are questionable (foam won't wash out), or for interior slabs where heavy slurry could overload the sub-base.