JLB Foundation Repair & Basement Waterproofing in Lee's Summit
Serving Lee's Summit and Jackson County with 5 specialized foundation and waterproofing services. Local expertise. Permanent solutions. Free inspections.
Solutions That Last the Life of Your Home
Every foundation problem has a permanent fix. We use engineered systems — not quick patches — backed by transferable warranties and decades of field experience.
Foundation Repair
Steel push piers and wall anchors to stabilize and lift settling foundations. Stop the cracks, level the floors, save the home.
Learn More
Basement Waterproofing
Interior drainage systems, sump pumps, and vapor barriers to keep your basement permanently dry. No more water. No more worry.
Learn More
Crawlspace Encapsulation
Full encapsulation with spray foam for BOTH crawlspace and basement — twice the protection competitors offer, at a lower cost.
Learn More
Polyjacking / Concrete Leveling
Lift and level sunken driveways, patios, sidewalks, and garage floors with polyurethane foam injection. Fast, clean, long-lasting.
Learn More
French Drains & Drainage
French drains, extended downspouts, regrading, and drain pipes to redirect water away from your foundation permanently.
Learn More
Foundation Wall Replacement
Complete removal and reconstruction of severely damaged foundation walls with new reinforced concrete, drainage, and waterproofing.
Learn MoreWhat Foundation and Waterproofing Services Are Available in Lee's Summit?
Lee's Summit's rapid growth has produced a landscape dominated by modern construction — poured concrete basements and slab foundations built on what was recently farmland. But building fast on Jackson County's clay soil comes with consequences: settling, cracking, and water intrusion that show up within the first decade.
Most of Lee's Summit's housing is relatively recent: Predominantly 1970s-2000s. The dominant foundation types are poured concrete basement, which are stronger than older methods but still vulnerable to Jackson County's soil. The rolling hills lead to significant runoff issues; many homeowners face hydrostatic pressure issues during heavy spring rains.
Rolling terrain with many lakes; soil is a thick, expansive clay layer. The rolling terrain means water runs downhill and collects against foundations in low-lying areas, while homes on slopes face lateral soil pressure on their downhill walls. JLB provides 5 specialized services to Lee's Summit homeowners, each engineered for the conditions we see in Jackson County. Every repair starts with a free inspection.
Lee's Summit at a Glance
Where Does JLB Serve in Lee's Summit, MO?
JLB provides foundation repair and waterproofing throughout Lee's Summit and the surrounding Jackson County area. Our crews know every part of this community.
What Foundation Types Are Common in Lee's Summit?
The homes in Lee's Summit sit on a range of foundation types, each with its own vulnerabilities. Here's what our crews see most often in Jackson County.
Poured concrete basement
Poured concrete basements dominate Lee's Summit's newer housing. These walls are stronger than block but develop shrinkage cracks during curing that become water entry points later. In Jackson County's clay soil, hydrostatic pressure exploits every imperfection — especially during the spring thaw and heavy rain seasons.
What Warning Signs Should Lee's Summit Homeowners Watch For?
Catching foundation and waterproofing problems early saves thousands of dollars in repairs. If you see any of these in your Lee's Summit home, it's time to call for a free inspection.
Vertical or diagonal cracks in Lee's Summit's poured concrete walls — hairline cracks that grow wider as Jackson County's clay continues to shift
Learn about Foundation Repair →Water entering through hairline cracks or the wall-floor joint after heavy rain — even newer Lee's Summit basements are vulnerable to hydrostatic pressure from the clay
Learn about Waterproofing →Musty smells drifting up from below, mold on surfaces, or floors that feel soft — your Lee's Summit crawlspace may be holding moisture that's damaging the structure above it
Learn about Crawlspace Encapsulation →Doors or windows that suddenly stick or swing open — even newer Lee's Summit homes experience this when soil settlement shifts the foundation
Learn about Foundation Repair →Who Is the JLB Team Serving Kansas City?
Numbers That Speak for Themselves
Even Newer Lee's Summit Homes Get Foundation Problems
Modern construction doesn't make your home immune to Jackson County's clay soil. Settling, cracking, and water intrusion affect homes of all ages. If you're seeing the signs, our free inspection will give you clarity — and honest pricing if anything needs fixing.
Not Sure What You're Dealing With?
Click any symptom below to learn what it means, what's likely causing it, and how we can help. Most of these are more common — and more fixable — than you'd think.
Diagonal, stair-step, or horizontal cracks in drywall, plaster, or brick usually trace back to soil movement beneath your foundation. The heavy clay soils in the Kansas City and Des Moines metros expand and contract seasonally, which can shift your foundation over time. The good news: this is very fixable with the right approach.
Water entering through floor joints, wall cracks, or seeping through porous concrete means groundwater pressure is pushing moisture into your basement. An interior drainage system and sump pump can solve this permanently — and we can usually have it done in a day or two.
When a foundation settles unevenly, it can shift your home's frame just enough to make doors and windows bind. This is one of the earlier signs of foundation movement — and catching it early often means a simpler, less expensive repair.
That musty smell is moisture. Up to 40% of the air in your home rises from below — from your crawlspace and basement. If there's excess humidity down there, it affects your whole home. Encapsulation seals it out, and you'll notice the difference in your air quality right away.
Floors that slope toward the center or an exterior wall usually mean the support structure underneath needs attention. Push piers can stabilize your foundation and often lift it back to level — giving your floors a second life.
When soil washes out or compacts beneath a concrete slab, the slab drops and becomes uneven. Polyjacking uses expanding polyurethane foam to fill the void and lift the concrete back to grade — usually in under a day, with no heavy equipment needed.
Water collecting near your foundation means your grading or drainage isn't directing water away effectively. French drains, regrading, extended downspouts, and drain pipes can redirect water away from the house — protecting your foundation for the long haul.
A basement wall that has bowed more than 2 inches inward, shifted off its footing, or shows multiple structural cracks may have moved beyond what bracing can fix. When carbon fiber straps, I-beams, or wall anchors are not enough, the wall needs to be removed and rebuilt with reinforced concrete. This is the last resort — but it is the permanent fix when the wall itself is compromised.
Why Do Lee's Summit Homeowners Choose JLB?
Jackson County Permits Handled
Structural foundation work requires permits in Jackson County, and we manage the entire process. Applications, inspections, compliance documentation — our crews have worked with the local building department for years and know the process cold.
Fast Response Across Lee's Summit
With offices throughout the Kansas City metro, our crews reach every corner of Lee's Summit quickly. For a community of nearly 101000 residents, responsiveness matters — and we're typically on-site for inspections within a few days of your call.
Engineered for Your Terrain
Lee's Summit's topography means homes face different pressures depending on where they sit — slopes, low spots, and areas near water all create unique challenges. We design every repair for the actual conditions on your specific lot.
Financing Options Available
Foundation problems only get more expensive the longer they go unaddressed. We offer flexible payment plans so Lee's Summit homeowners can act on the problem now — before another season of soil movement makes the repair larger and costlier.
What Lee's Summit ZIP Codes Does JLB Serve?
What Our Customers Say
"We had cracks running up our walls and doors that wouldn't close. JLB came out, explained exactly what was happening with the soil under our house, and had the piers installed in two days. Floors are level again. Wish we hadn't waited so long."
"Three other companies gave us the runaround. JLB showed up, did a thorough inspection, and gave us a straight answer. The repair held up through an entire Missouri winter with zero new cracking."
"Our crawlspace was a mess — moisture, mold, the works. JLB encapsulated it AND spray-foamed our basement in the same project. The difference in our home's air quality is incredible. Great value for the price."
Real Team. Real Work.
Right Here in Kansas City & Des Moines.
Real Projects. Real Results.
Every photo is from an actual JLB job site — not a stock photo. See the work we do every day across Kansas City and Des Moines.
Foundation Repair in Lee's Summit — FAQ
The most common issues we see in Lee's Summit are wall cracks (vertical and diagonal cracks in poured concrete), basement water intrusion, uneven or settling floors, and doors or windows that stick. The rolling hills lead to significant runoff issues; many homeowners face hydrostatic pressure issues during heavy spring rains. All of these trace back to how Jackson County's expansive clay interacts with the specific foundation types in your neighborhood.
Yes. Lee's Summit's newer housing — built during the Predominantly 1970s-2000s — sits on Jackson County's same expansive clay soil. Homes built on recently graded land or improperly compacted fill can start showing settlement within the first decade. Poured concrete walls develop curing cracks that become water entry points. Modern doesn't mean immune — it just means the failure patterns differ from older homes.
Rolling terrain with many lakes; soil is a thick, expansive clay layer. Homes on slopes face asymmetric soil pressure — the downhill foundation wall takes significantly more lateral load than the uphill side. This leads to one-sided cracking and bowing. Homes in valleys collect water from surrounding higher ground, increasing basement moisture problems. Both patterns are common in Lee's Summit.
Foundation repair costs in Lee's Summit vary widely based on the scope of damage and the solution needed. Minor crack repairs may cost $500-$2,000. Pier installation for settling foundations typically ranges from $5,000-$15,000. Full waterproofing systems run $3,000-$12,000. We provide free inspections with detailed, written estimates — no surprises and no pressure.
JLB provides 5 services to Lee's Summit homeowners: foundation repair (push piers, wall anchors, carbon fiber), basement waterproofing (interior drainage, sump pumps, crack injection), crawlspace encapsulation (spray foam + vapor barriers for both crawlspace and basement), polyjacking for sunken concrete, and French drain installation with grading and downspout work. Every service starts with a free inspection.
A JLB technician visits your Lee's Summit home and examines the foundation inside and out — checking for cracks, wall movement, floor levelness, moisture, and drainage. For poured concrete basement foundations common in Jackson County, we look for the specific failure patterns associated with that construction type. The inspection takes about 45 minutes and ends with a clear explanation of what we found, what (if anything) needs repair, and exactly what it costs. There's no obligation.
Get Your Free Foundation Assessment in Lee's Summit
Even newer Lee's Summit homes are affected by Jackson County's clay soil. Fill out the form for a free inspection — we'll assess your foundation, identify any issues, and give you honest pricing if anything needs fixing.
Get Your Free Inspection
Takes 30 seconds. We'll call within 24 hours.
Thank You!
We received your request. A foundation specialist will contact you within 24 hours to schedule your free inspection.
Our Locations
We're always close enough to help — our crews are local to your area.
JLB Foundation Repair & Basement Waterproofing — Kansas City
111 NE 72nd St Ste 111Kansas City, MO64119(816) 656-6835 View on Google Maps
Stop the Damage. Get Answers Today.
A free inspection takes 45 minutes and tells you exactly what's going on under your house — and exactly what it takes to fix it.