Behncke Construction · Serving Moline Since 1948

Foundation Repair & Basement Waterproofing in Moline, IL

From the older brick and block homes near the river to newer subdivisions, we’ve repaired and waterproofed Moline foundations for generations. We diagnose the cause first — then recommend only what your home actually needs.

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Moline foundations have their own signature

Moline’s housing stock skews older than the Iowa side of the river, with a lot of brick-and-block construction and decades of freeze-thaw and river-clay movement behind it. In our records, that shows up clearly: basement waterproofing is the single most common project we do in Moline, and masonry restoration runs unusually high compared with newer markets. Water tends to find the cove joint and aging mortar first — so the right answer here is often about managing water and restoring the wall, not automatically rebuilding it.

Our Documented Experience in Moline

A decade of Moline foundations, in our own records

Every number below comes straight from our QuickBooks history of real Moline estimates and completed jobs — not estimates of the market, but our actual documented work.

331
Documented estimates & evaluations
131
Completed projects
80
Basement waterproofing projects
71
Foundation repair projects
70
Masonry restorations
56
Concrete projects
15
Egress window installs
2015–2026
Years represented
28
Foundation & structural inspections completed in Moline
Inspections performed by Behncke Construction — a licensed general contractor specializing in foundation repair — part of 1,200+ completed across the Quad Cities since 2015.
In Perspective

Moline in perspective

Raw counts only tell part of the story. Measured against the size of the community, here’s how deep our Moline work really runs.

16
documented projects per 1,000 homes
20,266
homes in Moline (2020 Census)
331
documented projects · 131 completed
Documented projects per 1,000 homes — across the Quad Cities
Blue Grass
59
Bettendorf
45
Davenport
44
LeClaire
39
Eldridge
27
Moline
16
Rock Island
16

What this means for Moline: On the Illinois side our per-home footprint is lighter than in Iowa — real room to grow in a market whose older brick-and-block homes we know well.

Behncke estimate & invoice records, 2015–2026, measured against total housing units from the 2020 U.S. Census. A “documented project” is an estimate on record; homes may have more than one over time.

Diagnosis first · from our records

Nearly 2 in 3 Moline homes we inspect don’t need structural repair.

Across our documented Moline evaluations, only about 38% lead to structural work. Many of the rest are water-management or masonry issues with a far less invasive fix. We tell you which one you actually have.

What we see most in Moline homes

These are the problems our estimators document most often on Moline inspections — and what they usually point to.

Cracking & cracked walls

The most-recorded symptom in Moline. In older block walls, stair-step and horizontal cracks often trace back to freeze-thaw and water pressure against the wall — we read the crack pattern before deciding whether it’s a seal or a structural fix.

Cove joint seepage

Water entering where the wall meets the floor is one of our top Moline findings. It’s a pressure symptom, not a wall failure — the durable fix is relieving the water, not coating over it.

Leaning & bowing block walls

Showing up more in Moline’s older block foundations. When a wall is moving, we brace it with steel I-beams and address the soil pressure causing it — rather than cosmetic patching that hides the movement.

What we install most in Moline

The repairs we actually perform most here, straight from our completed-job records.

Interior drain tile + sump

Our most-installed Moline system: ADS drain tile to collect water below the slab, paired with a Zoeller sump to remove it. We present them as one system because that’s how they work.

Steel I-beam bracing

For walls that are genuinely moving, we install steel beams to stabilize and slowly straighten — the proven structural fix we’ve relied on for a decade.

Masonry & tuckpointing

Moline’s brick-and-block stock means a lot of mortar-joint and parging restoration — sealing the wall’s envelope so water and freeze-thaw stop working it loose.

What We’ve Learned in Moline

A decade of Moline foundations, in our words

The clearest pattern in our Moline record is that water and masonry come before structure. The older brick-and-block homes near the river take on water at the cove joint and through tired mortar long before a wall is in real structural trouble — which is exactly why waterproofing and masonry restoration lead our Moline work, and why nearly two-thirds of the homes we inspect here don’t need structural repair at all.

It’s also why diagnosis matters so much in Moline. A leaning block wall and a wall that just leaks can look alike to a homeowner, but they need very different work — and very different budgets. After thousands of Quad Cities inspections, we read the difference first, then recommend the smallest repair that permanently solves it. That’s the approach that’s kept Moline families calling us back since 1948.

Real Behncke Projects

Recent Behncke projects in Moline

Actual jobsites in your community — see the full before & after.

See what your Moline home actually needs

We diagnose the cause first, then recommend only the repair that permanently solves it. No pressure, no upselling — just an honest read from the contractor Moline has trusted since 1948.

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