Stone Foundation Basement Repairs, Sump Pump & Window Work, Davenport, Iowa

Two support posts and footings under the main girder replaced, a new sump pump with exterior discharge installed, 117 square feet of heaved basement floor replaced, three basement windows closed with block and two rebuilt in glass block in a Davenport, Iowa home.

Project photos

Project overview

This Davenport basement had several problems at once: the main girder beam needed better support, water was getting in, the concrete floor had heaved, and several basement windows were letting water through. Behncke Construction handled all of it as one job.

This home sits on an older stone foundation. For more on how we repair and waterproof stone, see our stone foundation repair page.

On the job

Under the main girder beam, the crew replaced two existing support posts with new 6×6 treated posts set on properly built concrete footings.

About 117 square feet of heaved concrete floor was broken out and removed, the subgrade was prepared, and new concrete was poured. A new sump pump system went in with a discharge line run outside and away from the house to help manage groundwater.

Three problem basement window openings were permanently closed with concrete block, then backfilled and regraded outside. Two more windows were rebuilt with glass block, which cuts down on water getting in while still letting daylight into the basement.

Serving the Quad Cities since 1948, Behncke Construction has spent nearly 80 years on difficult foundation, waterproofing and structural repairs. Handling all of these repairs under one roof meant the homeowner did not have to coordinate several different contractors.

Photo highlights

• The replaced section of basement floor, freshly poured.
• Breaking out the heaved concrete floor.
• The heaved floor removed and the subgrade exposed for preparation.
• The new sump pit set into the prepared subgrade.
• Outside, one of the basement window openings during the work.
• A basement window opening permanently closed with concrete block.
• A basement window being rebuilt with glass block, seen from outside.
• The glass block window going in, seen from inside the basement.
• A rebuilt glass block window beside the basement plumbing.
• A finished glass block window letting daylight into the basement.
• The second rebuilt glass block window.
• From inside, a former window opening now closed with block.
• One of the problem window openings before it was closed in.
• Outside after the window closures, backfill and grading.
• Regraded soil along the foundation after the window work.
• The sump pump exterior discharge line run out across the yard.
• The discharge line routed away from the house.
• The finished basement with the new floor section and sump pump.

Related services

• Basement Waterproofing
• Sump Pumps
• Structural Wood Repair
• Masonry Repair
• Our work in Davenport
• More recent project updates