What Can’t Be Restored with Foam Jacking or Mudjacking?
1. Precast or Hollow Cast Steps and Staircases
- Why They Can’t Be Raised: Precast or hollow cast steps and staircases present a unique challenge. If there isn’t a solid concrete slab beneath the staircase, it’s often secured to the house with helical piles or directly tied into the foundation wall. Attempting to lift these structures with foam jacking can lead to breakage, separation, or even damage to your home’s foundation.
- Recommended Solution: In most cases, removal and replacement is the best approach. If your steps have only recently started settling, consider switching to a wooden staircase rather than another heavy concrete one. Wooden stairs are lighter, more adaptable to shifting soils, and cost-effective compared to reinstalling new concrete steps.
2. Severely Damaged or Unreinforced Concrete
- Why It Can’t Be Raised: If a concrete slab is extensively cracked, too thin, or lacks rebar reinforcement, lifting it can cause more harm than good. Foam or cement-based lifting materials will follow the path of least resistance, seeping through cracks rather than effectively lifting the slab. This can result in uneven lifting, further breakage, or failure to stabilize the concrete.
- Recommended Solution: If the concrete is beyond repair, replacement is the safest option. When pouring a new slab, proper reinforcement with rebar is essential to prevent future cracking and settlement. Ensuring the new slab is adequately supported by a compacted sub-base will also help extend its lifespan.
3. Patio Stones, Landscaping Bricks, and Asphalt
- Why They Can’t Be Raised: Foam jacking and mudjacking are only effective for poured concrete slabs. Materials like patio stones, landscaping bricks, and asphalt are not structurally connected in the same way as poured concrete, making it impossible to lift them using injection methods. These materials require a different approach for leveling and stabilization.
- Recommended Solution: For uneven patio stones, bricks, or asphalt, contact a professional landscaping or paving company. These specialists use mechanical lifting, regrading, and reinstallation techniques to restore outdoor surfaces to a level and stable condition.
4. Structural Pours and Slabs on Helical Piles
- Why They Can’t Be Raised: Concrete slabs that are anchored to helical piles (screw piles) are part of a larger structural system. These types of slabs—often found in staircases, garages, and basement floors—are not free-floating and therefore cannot be lifted independently using foam jacking or mudjacking.
- Recommended Solution: If a structural slab is settling, consult a foundation specialist to determine the best course of action. In some cases, mechanical lifting or full replacement may be required. However, if the issue is voids beneath the slab rather than lifting, our foam void-filling solutions might still be an option to stabilize the floor.
Can All Concrete Be Restored?
Not every concrete slab is a candidate for foam jacking or mudjacking. However, if your situation falls into one of the categories above, there’s a good chance we can help with an alternative, removal and replacement, or guide you in the right direction.
Get a Free Concrete Lifting Estimate!
Contact Slab-Jack Kings today for a free consultation and estimate. Our team will assess your slab and recommend the best solution for your specific situation.
Why Choose Slab-Jack Kings?
As a trusted, family-owned Canadian business, Slab-Jack Kings specializes in:
- Concrete lifting & levelling
- Void filling & stabilization
- Polyurethane under-slab insulation
- Long-lasting foam solutions for residential & commercial properties
Our experienced professionals provide personalized solutions for all your concrete issues, ensuring cost-effective and long-term results.
Get in Touch Today!
Ready to reclaim your slabs? Fill out our Request an Estimate form, and one of our team members will be happy to assist you.
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