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Three foundation bids, a $10,000 spread, and no one showed you the math.

Settling does not wait for you to decide. Neither does the next bid revision. We measure the movement, tell you whether it is piers, foam, or nothing yet, and put the number in writing before any work is scheduled.

“Three different companies looked at it, all three said the front half has sunk about an inch and a half, and now I have to decide whether the foundation or the AC gets the money first.” — r/HomeImprovement

Piering vs. Mudjacking: Which One Actually Fixes Your Foundation

Side-by-side comparison of steel push pier installation and polyurethane foam mudjacking at a residential foundation

Piering vs mudjacking is the question behind most conflicting quotes: two contractors, two completely different numbers, and neither one explained why. Piering and mudjacking solve different problems — here is how to tell which one your house needs before you sign anything.

How Piering Works in West County Soil

Piering drives steel supports through the unstable topsoil down to load-bearing rock or dense soil, then transfers the weight of the structure onto those piers. It is the right call when the foundation is still actively moving — a piered foundation stops settling because the load no longer rests on the soil that is failing.

How Mudjacking Works — and Where It Falls Short

Mudjacking (or polyurethane foam injection) fills the void under a settled slab and lifts it back toward level. It is fast and inexpensive, but it does not address why the soil voided in the first place — a slab lifted this way over an active void will settle again. It is the right call for a one-time, non-recurring settlement event, not a foundation that is still moving.

Further reading: Deep Foundations Institute · American Society of Civil Engineers

Related: crawl space repair cost · how long foundation repair takes · free crack tracking log

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