Quad Cities · Established 1948

Dry Basements. Solid Foundations. Real Contractors. No Pressure.

Trusted in the Quad Cities since 1948. We diagnose the real problem and recommend only the repair your home actually needs — servicing Davenport, Bettendorf, Moline, Rock Island and the Quad Cities area.

Get a free estimate
1948
Family owned
Serving the Quad Cities
Licensed & Insured  /  BBB A+ Accredited  /  Iowa State Awarded Contractor  /  Quad Cities Chamber Member  /  Locals Love Us
Behncke crew member working under a Quad Cities home
The sales pitches you’ve heard

Three contractors. Three opinions. Zero answers.

01
“That’s normal.”Until the crack grows, the wall bows, or the basement leaks.
02
“To be safe, we’d do the whole system.”A five-figure quote for work your home may never actually need.
03
“This price is only good today.”Manufactured urgency before anyone diagnosed what’s actually wrong.

Every quote says something different — three opinions, three prices, and no idea who’s actually correct.

Real contractors • Not salesmen

Built on experience. Not sales quotas.

The same people who diagnose your problem have repaired foundations across the Quad Cities for decades. You’ll get honest recommendations based on what your home actually needs.

1948
Since
75+
Years in the ground
0
Salesmen
Put us to work
Tall crew portrait / on site
The Behncke Knowledge Platform

Understand the problem before you decide how to fix it.

The engineering behind foundations, water, and structure — explained in plain language, built from decades of Quad Cities field work.

Waterproofing / basement job photo
Water & Waterproofing
“Water usually starts outside.”
Explore Basement Waterproofing
Foundation crack / repair photo
Foundation Movement
“Read the crack before you choose the repair.”
Explore Foundation Repair
Exterior drainage / grading photo
Drainage
“Where did the problem actually begin?”
Explore Drainage Solutions
Concrete slab / flatwork photo
Concrete
“The part you’ll never see matters most.”
Explore Concrete
Brick / masonry repointing photo
Masonry
“Mortar is designed to fail before the brick.”
Explore Masonry Restoration
Structural wood / framing photo
Structural Wood
“Moisture damages wood long before you notice.”
Explore Structural Wood Repair
Egress window / basement window well photo
Egress Windows
“A code-compliant exit can save a life.”
Explore Egress Windows
Parking lot / asphalt repair photo
Parking Lot Repair
“Small cracks turn into full resurfacing.”
Explore Parking Lot Repair
Retaining wall / block wall photo
Retaining Walls
“A wall is only as good as its drainage.”
Explore Retaining Walls
Trusted in the Quad Cities since 1948

Decades
of Honest Work

Behncke Construction has repaired Quad Cities homes since 1948, and we carry that name and standard forward with honest, hands-on work. Decades in the field mean we recognize what we’re looking at quickly, and recommend the right repair, not the biggest one. When your home only needs a small fix, that’s exactly what we’ll tell you.

Vintage Behncke work truck photo
Behncke Construction · Est. 1948
Recent project updates

Proof, not just promises

A look at real foundations, basements, and structures we’ve repaired across the Quad Cities, the problem, and exactly how we fixed it.

Will your warranty still matter in 10 years?

Some companies offer “lifetime” warranties after only a few years in business. Behncke has stood behind its work since 1948, see why experience matters when a repair is supposed to last.

Read About Our Warranty Promise →
★★★★★

5-Star Google reviews

Quad Cities homeowners on what it’s like to work with a contractor who fixes only what needs fixing.

★★★★★

“I had a tight timeline and they met it. Very professional. Great to work with.”

M
Mark M.
Verified Google review
★★★★★

“From initial scheduling through conclusion, everything was precise and craftsmanship perfect.”

S
Scott S.
Verified Google review
★★★★★

“This company is the best! Everyone on crew was courteous and professional.”

A
Amanda C.
Verified Google review
Why Quad Cities homeowners call Behncke

Straight answers about your home, from the Quad Cities’ foundation experts since 1948.

Locally owned and operated. We diagnose the real problem and recommend only the repair your home actually needs — no scare tactics, no upsells.

1948
Serving the Quad Cities since
100%
Locally owned & operated
$0
For an honest written estimate
We diagnose first, you only pay for the repair your home actually needs.
Licensed, bonded & insured.
Free, no-pressure written estimates.
Financing available on qualifying projects.
★★★★★

“They are very professional and quick to respond. They were also more affordable than the other quotes I received.”

5.0 ★ Google reviews

Request Your Free Estimate

Tell us what’s going on with your home. We’ll take an honest look and follow up quickly.

Free Estimate Request
Honest answers

Questions homeowners actually ask

Straight answers to the things that keep people up at night, no jargon, no pressure.

Because most of them are pricing a system before they’ve diagnosed the problem. We start the other way around — find the actual cause of the water or movement, then recommend the smallest repair that fixes it for good. Sometimes that’s a full system; often it isn’t.
No. A lot of basement water starts outside — grading, gutters, or a single crack. If a downspout extension and a sealed crack solve it, that’s what we’ll recommend. We only install interior drainage systems when the water genuinely calls for one.
Very often, yes. Most cracks in a poured or block wall can be sealed and reinforced without tearing the wall out. We read the crack first — its shape, width, and whether it’s still moving — and only recommend a rebuild when the wall has actually lost its structural integrity.
The location and timing of the water tell the story. Stains at the wall-floor joint, efflorescence on block, or water only after heavy rain each point to a different cause. We walk the basement and the exterior together so we’re fixing the source, not just the symptom.
Yes. The same working contractors who diagnose your problem are the ones on site doing the repair — not a subcontracted crew you’ve never met. It’s how we’ve kept quality and accountability under one name since 1948.
Usually within a few business days, and sooner for active leaks or urgent structural concerns. Reach out with what you’re seeing and we’ll get you on the schedule and follow up within one business day.

Still have a question? Call or text us at 563-332-6045, we’re happy to talk it through.

Recent Work

Working For Scott Co.
Foundation Repair
Foundation Repair
Foundation Repair
Egress Window
Drain tile basement waterproofing
Basement Waterproofing
Concrete
Leak Repair
Commercial Maintenance
Basement Waterproofing & Foundation Repair
Water stop foundation crack repair in progress — Rock Island, IL — project photo 2