Aqua Lock has been waterproofing Louisville basements since 2006. Family-owned by Jay and Becky Kraft, headquartered at 10470 Bluegrass Parkway in Jeffersontown. 10,000-plus Kentucky basements repaired, and every waterproofing job comes with our Lifetime Transferable Warranty.

Why Louisville Basements Get Wet

Louisville sits in the Ohio River Valley, surrounded by clay-heavy soils that hold water like a sponge after each rainstorm. Add 10 to 20 freeze-thaw cycles per winter and an aging housing stock with limestone-block and poured-block foundations, and you have the four conditions that drive basement water intrusion in this region:
- Hydrostatic pressure is building up against the foundation walls after heavy rain
- Clay-soil expansion pushing laterally on basement walls (bowing walls follow)
- Grading and downspouts that send roof water toward the foundation instead of away
- Older mortar joints are breaking down between limestone or poured blocks, letting groundwater seep in at the wall-to-floor seam
A wet basement is usually one of these problems, sometimes all four. Aqua Lock starts every job by figuring out which one is actually happening at your house.
Our Basement Waterproofing Services in Louisville
Basement waterproofing is not a single product. It is a set of techniques matched to the water source. Aqua Lock installs the following systems based on what the inspection finds:
Interior Drainage Systems
A perforated drain line is installed along the inside perimeter of the basement floor, channeling water to a sump pump that discharges it outside. The most reliable solution for hydrostatic pressure and slab-edge seepage.
Exterior waterproof membranes
Excavated installation around the outside of the foundation wall, applied directly to the concrete. Stops water before it reaches the wall. Higher cost, longer-term solution when site conditions allow.
Crack injection
Polyurethane or epoxy injection for foundation wall cracks that are leaking water. The right product depends on whether the wall is still moving (polyurethane flexes) or has stabilized (epoxy bonds).
Sump pumps
Primary and battery-backup systems sized for the volume of water you actually see during a storm. Louisville’s heavy-rain season means most basements need the pump to handle high-volume bursts, not just slow weeping.
Wall-to-floor sealing
Treatment of the cove joint where the floor slab meets the foundation wall. Common entry point for water in homes built before 1970.
Every recommendation is matched to your specific basement. A 1920s limestone-block basement in the Highlands needs a different system than a 1990s poured-concrete basement out in Middletown.
Louisville Neighborhoods We Waterproof
We work across the Louisville metro. Each neighborhood has its own page with local soil and foundation specifics, recent jobs, and what we typically see in that part of town:
Anchorage · Indian Hills · Middletown · Prospect · Fairdale · Jeffersontown · Newburg · Shively · Fern Creek · Okolona · St. Matthews · Highview · Lyndon · Pleasure Ridge Park · Valley Station
Signs Your Louisville Basement Needs Waterproofing
Some signs are obvious. Some are subtle. Here is what to watch for:
- Standing water on the basement floor after heavy rain
- Musty smell that does not go away
- White powdery deposits on walls (efflorescence, the mineral salts left behind as water passes through concrete)
- Damp drywall, peeling paint, or warped baseboards
- Cracks in foundation walls that visibly weep or stain
- Bowing or inward-leaning basement walls
- Mold along the baseboards or in stored items
- Rust stains on appliances stored in the basement
Any one of these is worth a free inspection. Two or more usually means active water intrusion that will get worse.

Why Louisville Homeowners Choose Aqua Lock for Basement Waterproofing
Watch for these issues in Kentucky and Southern Indiana homes:


“Our competitors often only quote the maximum, most expensive scope for Foundation Work, because they see it as easy money. We built Aqua Lock to do the opposite. Every inspection ends with options and education, not just a single price tag for the most expensive solution.”
Jay Kraft, Co-Owner



- In business since 2006.
- 10,000-plus Kentucky homes repaired.
- Lifetime Transferable Warranty on waterproofing work.
- BBB Accredited with an A+ rating.
- Mold Certified, Radon Certified, Certified Structural Inspector standards.
- Family-owned and operated by Jay and Becky Kraft.
- No subcontractors. Every job is handled by trained Aqua Lock employees.
- Financing available on qualifying jobs.
How a Louisville Basement Waterproofing Job Goes
Call 502-495-9450
Most Louisville inspections are scheduled within 24 to 48 hours.
Free in-home inspection
A trained Aqua Lock inspector walks your basement with you. The inspector identifies the water source, measures, and explains what is happening. 30 to 45 minutes, no obligation, no hard sell.
Write the scope and price
before you decide on anything. You see options ranging from the smallest scope (often just sealing a single crack) to a full interior drainage system.
Installation typically takes 1 to 3 weeks out
A foreman is on the job from start to finish. Surfaces in your basement are covered with plastic. Dust suppression equipment runs all day. Final walkthrough with you before payment.
Frequently Asked Questions
How long does basement waterproofing take?
A typical interior drainage system in a Louisville basement takes 2 to 4 days to install, depending on the basement perimeter and what is in the way. Crack injection alone is usually a same-day job. Exterior waterproofing with excavation can take 1 to 2 weeks.
Should I waterproof from the outside or the inside?
Both work. Interior drainage is less invasive (no digging up the yard, faster, lower cost) and is the standard solution in most Louisville basements. Exterior membranes are the most thorough solution when site conditions allow excavation, but they are 2 to 3 times the cost and disruption. We will tell you honestly which one your house actually needs.
Will my homeowner's insurance cover basement waterproofing?
Usually not. Most policies cover sudden water damage (such as a burst pipe) but exclude long-term water intrusion from groundwater or hydrostatic pressure. Waterproofing is treated as preventive maintenance. Check your specific policy.
Does waterproofing fix bowing walls?
Waterproofing alone does not stabilize bowing walls. If your walls are bowing, you need structural reinforcement first (carbon fiber straps, wall anchors, or steel I-beams) and then waterproofing. We can handle both in a single project.
How long does the work last?
Our waterproofing work is backed by a Lifetime Transferable Warranty. If you sell the house, the warranty transfers to the new owner, which matters at resale and shows up on home inspections.
Schedule Your Free Louisville Basement Inspection
Family-owned and operated by Jay and Becky Kraft since 2006. Protect the home, respect the family, and do the job right.
Free, no-pressure inspection. Full evaluation. No obligation.
Get a professional inspection and fix the issue at its source.
Author: Jay Kraft, Co-Owner, Aqua Lock
Reviewer: Becky Kraft, Co-Owner, Aqua Lock
