Behncke Construction · Serving DeWitt

Foundation Repair & Basement Waterproofing in DeWitt, IA

DeWitt sits on the Lincoln Highway near the Wapsipinicon River, with a lot of homes built before 1980. We find the real cause of your foundation or water problem and fix only what your home needs.

Family owned since 1948 · BBB A+ Accredited · Licensed & Insured · About 37 minutes from our Davenport shop

From our own records
20+

DeWitt homeowners in our QuickBooks customer records. We are not new to DeWitt. We have been looking at basements here for years.

DeWitt at a glance

A Lincoln Highway town near the Wapsi

About six in ten DeWitt homes were built before 1980, and 17 percent before 1940. Older foundations and heavy rains are a common pairing here.

5,514
residents
1973
median year homes were built
62%
of homes built before 1980
17%
of homes built before 1940

Home age and population: U.S. Census Bureau, American Community Survey 5-year estimates.

Local ground conditions

What’s under DeWitt homes

Tama silt loam

Much of DeWitt sits on Tama silt loam, a well drained loess soil. Most basement water here comes from roof runoff, grading and heavy storms rather than a constantly high water table.

The Wapsipinicon River

The Wapsi gauge near DeWitt has a flood stage of 11 feet. It set a record of 14.32 feet in July 2014 and also flooded in 1990, 2008 and 2018.

Since 1836

DeWitt was platted in 1836 as Vandenburg. From the blocks around the 1908 Carnegie library to newer neighborhoods, the town has basements of every age, and each one gets diagnosed on its own.

What we look for

Common problems in DeWitt basements

We diagnose the real cause first and recommend only the repair your home actually needs. Many cracks and damp spots turn out to be smaller problems than they look.

Water after big storms

Well drained soil still sends water toward a house when gutters overflow or the yard slopes the wrong way. Fixing the outside first often solves it.

Cracks in older foundations

Older block and stone walls crack and shift over time. We tell you what is normal settling and what needs repair.

Egress and finished basements

Finishing a basement bedroom means meeting egress code. We cut, install and permit egress windows the right way.

Free · No obligation

See what your DeWitt home actually needs

Tell us what you’re seeing. A working contractor, not a salesperson, will take an honest look and give you a written estimate.

Sources: U.S. Census Bureau ACS; USDA NRCS Web Soil Survey; National Weather Service Wapsipinicon River gauge near DeWitt.