From minor seepage to full basement flooding, JCB Waterproofing and Construction provides engineered solutions that protect your foundation and your investment.
Four reasons why Alton homeowners trust us with their most important asset.
Our interior drain tile systems are sized and sloped to specification, ensuring gravity carries water to your sump pump without clogging or backing up over time.
Porous concrete block and poured walls let groundwater seep through at the mortar joints -- we seal them from the inside with hydraulic cement and crystalline coatings that bond permanently.
We document every installation with before-and-after photos, moisture readings, and a written record so you have evidence of the work performed and its conditions.
We deliver detailed written quotes that break down every material and labor cost -- no surprise line items appear on your final invoice that were not on the original estimate.
Most homeowners in Alton do not realize that a wet basement is not simply a waterproofing problem -- it is a structural warning sign. Hydrostatic pressure that pushes water through walls does not stop pushing when the water is gone. It continues to stress the concrete and masonry, leading to horizontal cracks in block walls, inward bowing of poured walls, and undermining of the footing system. Addressing the symptom without understanding the root cause means spending money on solutions that fail within a few seasons.
A well-installed interior drain tile system is designed around the specific hydrology of your property. Basements in Alton that sit in naturally high water table zones require larger-diameter pipe and higher-capacity pumps than basements that only collect surface runoff during heavy storms. Our assessment process measures both the volume and the frequency of water intrusion to right-size every component -- from the pipe diameter to the pump horsepower and battery backup capacity.
Wall seepage in block-construction basements is distinct from crack injection because the water is not coming through a single discrete opening -- it is migrating through the porous masonry itself and weeping through the mortar joints. Effective treatment requires sealing the interior face of the block with a hydraulic cement parging coat, followed by a crystalline waterproofing compound that reacts with moisture to form insoluble crystals inside the concrete matrix. This approach stops the migration rather than coating over it, producing a result that actually strengthens with repeated moisture exposure rather than degrading. For severe seepage, core-filling the hollow block cells with grout eliminates the cavity that allows water to travel vertically inside the wall before finding an exit point.
Floor cracks are a separate category of water entry that many homeowners underestimate. A hairline crack in a poured concrete floor can transmit significant water when the slab sits on soil with a high water table. Injection of these cracks follows the same principle as wall cracks: drill ports, install fittings, and pump polyurethane resin that expands to fill the void and bond with the surrounding concrete. In situations where the slab has heaved or settled, crack injection is supplemented with undercutting and re-pouring a portion of the slab to restore a flat, properly sealed floor surface.
Our written warranty covers both the installed drainage system and the sump pump equipment against defects in materials and workmanship. We recommend scheduling an annual inspection with our team to check that pump floats are operating freely, the battery backup is holding a charge, and the drain system's outlet is unobstructed. Homeowners in Alton, IL who maintain this schedule rarely experience warranty claims because we catch the small issues before they become large ones.
Six core services covering every source of basement moisture in Alton homes.
We size every drain tile system to the specific hydrology of your basement, ensuring the pipe diameter and sump pump capacity match your worst-case water intrusion load.
Poured concrete wall cracks are permanently sealed with low-viscosity polyurethane resin injected under pressure through surface-mounted ports drilled along the crack length.
Sump pits are sized to accommodate both primary and backup pumps without float interference, and discharge lines are routed to a point at least ten feet from the foundation perimeter.
Hollow-core concrete block walls are treated with hydraulic cement parging and crystalline waterproofing compound that bonds into the block face and eliminates surface seepage.
After injection, we verify the repair with a moisture meter reading to confirm that subslab water transmission has been eliminated at the crack location.
Below-grade window wells that collect rainwater are fitted with a dedicated drain at the base of the well, connected directly into the interior perimeter drain system.
We measure moisture levels at multiple points, probe for efflorescence sources, and map every water entry location before recommending any solution.
Our quotes include alternatives at different investment levels so you can choose a phased approach if budget requires it.
All debris is removed daily and the work area is restored progressively so your basement remains usable during multi-day projects.
We perform a complete post-installation inspection, take final moisture readings, and walk you through the system before issuing your written warranty documentation.
We had serious standing water every spring for eight years. JCB Waterproofing and Construction installed a full perimeter drain and sump system and we have been completely dry through two wet seasons since.
Professional from the initial phone call to the final walkthrough. They explained every step of the process and answered every question without making me feel rushed.
Excellent crew, fair price, and the basement has been dry for fourteen months now including one of the wettest summers our area has seen. Highly recommend.
Get a written quote from certified professionals who have solved every type of basement water problem in IL.
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