IllustrativePool Deck Leveling in Kansas City
PolyJacks raises a sunken pool deck by injecting waterproof polyurethane foam through dime-sized holes, lifting and stabilizing the concrete without draining the pool or tearing out and replacing the slab. Most Kansas City metro jobs finish in 2-4 hours, with the deck ready to use within hours, at a fraction of the cost of full replacement. PolyJacks offers a free on-site estimate before any work begins.
Your Pool Deck Doesn't Have to Stay a Hazard
A sunken slab next to a pool is a different animal than one in the middle of your yard. It's wet, it's barefoot territory, and a half-inch lip is enough to send someone down hard on concrete. If your pool deck has settled, tilted toward the water, or pulled away from the coping, that's not just an eyesore — it's the kind of thing that turns a pool party into an ER trip.
PolyJacks levels pool decks across the Kansas City metro with waterproof polyurethane foam, injected right through the existing concrete. No draining the pool. No jackhammers. No demo. We lift the slab back to level, you fill it back up with pool floats instead of concrete trucks.
Why Pool Decks Sink in KC
Pool decks sink faster and more often than a lot of other concrete on your property, and there's a reason for it. When that pool went in, the ground around it got dug up, backfilled, and compacted — or not compacted as well as it should've been. That loose fill settles over time, and the slab poured on top of it settles right along with it.
Then KC's clay soil takes over. It swells when it's wet and shrinks when it's dry, and with a pool splashing water into the ground on one side of that deck and sun baking the other, you get uneven movement season after season. Add in repeated freeze-thaw cycles most winters, plus drainage that's often aimed straight at the deck instead of away from it, and it's no surprise pool decks are some of the first slabs on a property to go.
How We Lift It
We drill a series of dime-sized holes through the sunken sections of your deck — usually 4 to 12 holes depending on the size and shape of the area. Through those holes we inject high-density polyurethane foam underneath the slab. The foam expands 30 to 40 times its liquid volume, fills the voids left by settled soil, and raises the concrete back to level as it goes.
Most pool deck jobs take 2 to 4 hours start to finish. The foam sets up fast: you can walk on the deck again in 15 to 30 minutes, and it's fully cured and inert not long after. We patch the injection holes, and that's it — no tarps over the pool, no closed-off yard for a week, no draining and refilling thousands of gallons of water.
We lift your slab from underneath — in hours, not days
A dime-sized hole. Waterproof foam. Your concrete rises back to level.
- 1. Drill dime-sized holes
- 2. Inject expanding foam
- 3. Slab lifts back to level
Level. Done. In Hours.
2–4 HOURS · WALK ON IT IN 30 MIN · WATERPROOF FOAM
The foam is lightweight — it re-supports your slab without overloading the soil, and it’s waterproof, so it won’t wash out like mudjacking.
Built to Live Next to a Pool
Regular concrete repair methods weren't designed for standing water and constant splash. Mudjacking uses a wet cement slurry that isn't waterproof and can wash out over time — not ideal parked six inches from a swimming pool. Our foam is different: it's inert and waterproof once cured, so pool water, rain, and sprinklers running along the deck edge don't degrade it or erode it out from underneath the slab. It also weighs a fraction of what mud or new concrete weighs, so it isn't adding stress to soil that's already struggled to hold the deck up once.
When Polyjacking Isn't the Answer
We'll tell you straight if foam isn't the fix. A deck slab that's cracked all the way through or broken into pieces needs replacement, not lifting — foam can't hold a slab together that's structurally failed. If the settling is being driven by a leaking pool pipe or skimmer line, that needs to get fixed first, or the ground underneath will just keep washing out and the deck will sink again. And if the real culprit is a downspout dumping water at the deck's edge every time it rains, we'll flag that too, because leveling the concrete without addressing the water source is a job that doesn't stick.
Backed for a Year
Every pool deck we lift comes with a 1-year limited warranty that transfers if you sell the house. If the slab settles more than 1/4 inch within 12 months because of our work, we come back and re-lift it, free. That warranty doesn't cover things outside our control — drainage or gutter neglect, tree roots, heavy loads within 48 hours of the job, acts of God, or cosmetic hairline cracks — but a settling deck from the original cause is on us to make right.
What the work actually looks like
How polyjacking works — 90 seconds
Our team walks you through the three-step process: dime-sized holes, high-density polyurethane foam that fills every void and compresses the soil beneath your slab, and use within hours with no heavy trucks. Call (913) 713-7794 or book a free estimate below.
Frequently asked
Do you have to drain the pool to lift the deck?
No. We work around the pool as it sits, full of water. The injection holes go into the concrete deck itself, not the pool shell, so there's nothing to drain and nothing to refill.
Is it safe to lift concrete right next to a pool?
Yes — that's the point. A sunken or tilting pool deck is a trip-and-fall risk, especially on wet concrete around a pool. Leveling it removes the lip or slope that's catching feet, and the foam cures fully waterproof, so pool splash-out and rain don't affect it.
How long until we can use the pool deck again?
You can walk on it in 15 to 30 minutes. Most pool deck jobs run 2 to 4 hours total, so families are back to swimming within hours.
Will the foam hold up around all that pool water?
That's exactly what it's built for. The foam is waterproof and non-shrinking once cured — pool splash, rain, and sprinkler overspray don't break it down or wash it out from under the slab the way soil can.
What if the deck is cracked, not just sunken?
Hairline cracks are common and typically ride along fine once the slab is level and supported. If a section of deck is broken through or badly deteriorated, foam won't fix that — we'll tell you straight and point you toward replacement instead of quoting a job that won't hold.
What does a pool deck job cost?
We price every job by the exact amount of foam it takes to lift your deck, which we determine at a free on-site inspection — there's no standard rate because every deck is different. What we can tell you up front: it consistently runs far less than tearing out and repouring.
Get your free concrete leveling estimate
No obligation — and if foam isn't the right fix, we'll tell you straight.
Book your free estimate
Pick a time that works for you — free on-site inspection, no obligation. Prefer to talk? Call (913) 713-7794.