JLB Basement Waterproofing & Foundation Repair in Altoona
Serving Altoona and Polk County with 4 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.
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Basement Waterproofing
Interior drainage systems, sump pumps, and vapor barriers to keep your basement permanently dry. No more water. No more worry.
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Crawlspace Encapsulation
Full encapsulation with spray foam for BOTH crawlspace and basement — twice the protection competitors offer, at a lower cost.
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French Drains & Drainage
French drains, extended downspouts, regrading, and drain pipes to redirect water away from your foundation permanently.
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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 Altoona?
Altoona is a close-knit community of about 24000 in Polk County. The homes here may not number in the tens of thousands, but they sit on the same aggressive clay soil that affects the entire Des Moines region — and they face the same foundation and waterproofing challenges as any home in the metro.
Most of Altoona's housing is relatively recent: Mixed growth: stable mid-century residential core with significant 1990s and 2000s suburban expansion.. The dominant foundation types are poured concrete basement and concrete block basement, which are stronger than older methods but still vulnerable to Polk County's soil. The flat geography in Altoona leads to poor natural drainage. Sump pumps here work harder than in hillier areas, making battery backups a vital financial insurance policy.
Flat terrain east of Des Moines; characterizes the transition to Iowa's open agricultural plains. The flat terrain means water doesn't naturally drain away from foundations — it pools and presses. JLB provides 4 specialized services to Altoona homeowners: foundation repair, waterproofing, crawlspace encapsulation, drainage solutions, all designed for the specific conditions in this area. Every job starts with a free inspection and an honest assessment — no pressure, no obligation.
Altoona at a Glance
Where Does JLB Serve in Altoona, IA?
JLB provides foundation repair and waterproofing throughout Altoona and the surrounding Polk County area. Our crews know every part of this community.
What Foundation Types Are Common in Altoona?
The homes in Altoona sit on a range of foundation types, each with its own vulnerabilities. Here's what our crews see most often in Polk County.
Poured concrete basement
Poured concrete basements dominate Altoona's newer housing. These walls are stronger than block but develop shrinkage cracks during curing that become water entry points later. In Polk County's clay soil, hydrostatic pressure exploits every imperfection — especially during the spring thaw and heavy rain seasons.
Concrete block basement
Concrete block basements in Altoona use hollow-core masonry that's inherently weaker than poured concrete under lateral loads. The expansive clay in Polk County presses against these walls every wet season, and over time the cumulative stress shows up as cracking, bowing, or step-pattern fractures.
What Warning Signs Should Altoona Homeowners Watch For?
Catching foundation and waterproofing problems early saves thousands of dollars in repairs. If you see any of these in your Altoona home, it's time to call for a free inspection.
Stair-step or horizontal cracks in Altoona's block basement walls — a sign of lateral clay pressure pushing inward
Learn about Foundation Repair →Water entering through hairline cracks or the wall-floor joint after heavy rain — even newer Altoona basements are vulnerable to hydrostatic pressure from the clay
Learn about Waterproofing →Musty odors, mold, or sagging floors above crawlspaces — in Altoona's low-lying areas, ground moisture rises into the crawlspace and affects the entire home
Learn about Crawlspace Encapsulation →Doors or windows that suddenly stick or swing open — even newer Altoona homes experience this when soil settlement shifts the foundation
Learn about Foundation Repair →Who Is the JLB Team Serving Des Moines?
Numbers That Speak for Themselves
Even Newer Altoona Homes Get Foundation Problems
Modern construction doesn't make your home immune to Polk 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 Altoona Homeowners Choose JLB?
Iowa Licensed & Polk County Experienced
We're fully licensed in Iowa and experienced with Polk County's building requirements. Permit applications, structural inspections, code compliance — we handle the process so you don't have to learn it.
Dedicated Crew, Start to Finish
In Altoona, you get the same team from the first inspection through the final walkthrough. No subcontractors, no handoffs between crews. One team that knows your project inside and out.
Concrete block Experience
Altoona's concrete block foundations require specific repair techniques that differ from modern poured concrete. Our crews are trained in wall stabilization, pier installation, and masonry-specific methods designed for these older construction types.
Straightforward Pricing
We give Altoona homeowners a clear written estimate with no hidden costs. If financing helps, we have flexible plans available — but either way, you'll know exactly what the project costs before we start.
What Altoona 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 Altoona — FAQ
The most common issues we see in Altoona are wall cracks (stair-step and horizontal patterns in block walls), basement water intrusion, uneven or settling floors, and doors or windows that stick. The flat geography in Altoona leads to poor natural drainage. Sump pumps here work harder than in hillier areas, making battery backups a vital financial insurance policy. All of these trace back to how Polk County's expansive clay interacts with the specific foundation types in your neighborhood.
Yes. Altoona's newer housing — built during the Mixed growth: stable mid-century residential core with significant 1990s and 2000s suburban expansion. — sits on Polk 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.
Polk County's expansive clay undergoes dramatic volume changes with moisture. When wet, it swells and pushes against foundation walls with thousands of pounds of lateral force. When dry, it contracts and creates voids beneath footings. Flat terrain east of Des Moines; characterizes the transition to Iowa's open agricultural plains. This endless cycle causes progressive damage that compounds year after year if not addressed.
Foundation repair costs in Altoona 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 4 services to Altoona 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), and French drain installation with grading and downspout work. Every service starts with a free inspection.
A JLB technician visits your Altoona 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 Polk 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 Altoona
Even newer Altoona homes are affected by Polk 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.
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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 Basement Waterproofing & Foundation Repair — Des Moines
97 Indiana Ave Suite #1Des Moines, IA50314(515) 444-9234 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.