Basement waterproofing · Davenport, IA
We keep basements dry in Davenport, Bettendorf, Rock Island, and Moline. Professional waterproofing for the Quad Cities.
Get my free quoteDavenport sits right on the Mississippi River, and anyone who lives here knows what that means. The 1993 flood hit 22.63 feet, and in 2019 we broke that record at 22.7 feet. The 2019 flood topped major stage for over 40 days. When the river runs high and the clay soil around your foundation stays saturated, water finds its way into basements across the Hamburg District, McClellan Heights, and the Village of East Davenport.
Our heavy clay and loess soils don't drain well. When spring rains hit frozen ground or we get several inches in a short time, the water has nowhere to go but against your foundation walls. Homes built in the early 1900s throughout Cork Hill and Gold Coast neighborhoods have stone foundations that weren't designed for the kind of hydrostatic pressure we see today. Even newer homes in Northwest Davenport deal with seepage when the soil gets waterlogged.
We install interior drainage systems, sump pumps, exterior waterproofing, and foundation crack repair throughout Scott County. Every job starts with figuring out where your water is coming from and what your specific property needs. We work in crawl spaces, finished basements, and everything in between.
We install perimeter drain tile systems that collect water before it comes through your basement floor or walls. The system routes water to a sump basin where it gets pumped away from your foundation.
A reliable sump pump is essential when you live near the Mississippi River or Duck Creek. We install primary pumps, battery backup systems, and can replace failing units that can't keep up with heavy water flow.
Cracks in poured concrete or block foundations let water seep into your basement. We use epoxy or polyurethane injection to seal cracks permanently and stop active leaks.
For serious water problems, we excavate around your foundation, apply waterproof membrane, and install exterior drain tile. This keeps water away from your walls before it can cause damage.
Damp crawl spaces grow mold and let humidity into your home. We install vapor barriers, insulation, and dehumidifiers to keep crawl spaces dry year-round.
We dig French drains to redirect surface water away from your foundation. These drainage systems work well in yards where water pools near the house after storms.
Clay soil, loess deposits, and river flooding create specific challenges that need local knowledge. We've worked on foundations throughout Davenport and understand how water moves through different neighborhoods.
We don't just patch the problem and leave. Every system we install is designed to handle the water conditions at your specific property for the long term.
We'll tell you what you actually need, not try to sell you the most expensive option. Some basements need a full perimeter system, others just need a crack repair or better grading.
Our crews have experience with every type of foundation common in this area, from century-old stone to modern poured concrete. We take the time to do quality work.
Davenport has a long history of dealing with water. The Great Flood of 1993 reached 22.63 feet on July 9, nearly eight feet above flood stage. In April 2019, temporary HESCO barriers failed downtown and the Mississippi crested at a record 22.7 feet. The flooding remained above major stage for over 40 days that spring. We also saw significant floods in 1965, 2001, 2004, 2008, 2014, and 2023. The city sits directly on the river without a modern levee system, which means high water affects properties from Credit Island to the Village of East Davenport. Duck Creek has caused flash flooding too, including a 1990 storm that killed four people and a 2008 event that flooded streets and homes in Bettendorf and Davenport.
The soil here is mostly heavy clay and loess, a wind-blown silt that becomes a real problem when it gets saturated. This glacial till doesn't drain well, so water sits against foundation walls and creates hydrostatic pressure. Many homes in the Hamburg District, McClellan Heights, Cork Hill, and Vander Veer Park neighborhoods were built between 1895 and 1920 with stone or early concrete foundations. These older homes need special attention because they weren't built with modern waterproofing. If you're doing foundation work in Davenport, you'll need to follow city building permit requirements. The permitting process ensures work meets code, which protects your investment and helps with resale value.
A basic interior drainage system with a sump pump typically runs $3,500 to $6,000 for an average-sized basement. Exterior waterproofing costs more because of excavation work, usually $8,000 to $15,000 depending on how much of the foundation needs treatment. Simple crack injection might cost $400 to $1,200 per crack. Crawl space encapsulation ranges from $3,000 to $8,000 based on size and condition. French drains run $2,000 to $5,000 depending on length and grading work needed. What drives the price up is the size of your basement, how much water you're dealing with, soil conditions, accessibility for equipment, and whether you have a finished basement that needs partial demo. Homes on the bluffs near Hamburg or down in the river valley have different challenges that affect cost. We give you an exact price after we see your property.
Based around Davenport, IA, we also take jobs in these nearby towns. Put your town on the form and we will tell you right away if we can help.
Look for water stains on walls or floors, musty odors, efflorescence (white powder on concrete), cracks with moisture, or standing water after rain. If your basement floods during spring thaws or heavy rains, you need a drainage solution. Even minor dampness can lead to mold and structural damage over time.
A sump pump handles groundwater that collects around your foundation, not river flooding that overtops your property. During events like the 2019 flood when water reached 22.7 feet, homes in flood zones face different challenges. A sump pump with battery backup will protect you from typical rain and snowmelt that saturates the clay soil around your foundation.
Most interior drainage systems take one to three days depending on basement size and layout. Exterior excavation and waterproofing takes three to five days because of digging, membrane application, and backfill work. Simple crack repairs can be done in a few hours.
Interior work like sump pumps and drain tile typically doesn't require permits, but exterior excavation and foundation work usually does. We can advise you on what the city requires for your specific project. It's worth doing it right to avoid issues down the road.
Yes, many homes in Hamburg, Cork Hill, and McClellan Heights have stone foundations from the early 1900s. We can install interior drainage systems and seal the interior walls, or excavate and apply exterior waterproofing. Stone foundations need careful evaluation because they're more porous than concrete.
Check your sump pump a few times a year by pouring water in the basin to make sure it kicks on. Clean the screen on the discharge line and test your battery backup before spring. Interior drains need very little maintenance, but keep the area around floor drains clear of debris.
Tell us what you need and where. We usually reply within one business day. A photo helps us give you a faster, more accurate quote.
No obligation and no pressure.
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