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Concrete Pool Decks in Grimes, Iowa A Pool Deck Built From the Ground Up to Stay Put

Concrete pool decks built base-up by one JLB crew, from excavation to finish, for Grimes's settling glacial soils.

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JLB Foundation Repair

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Grimes Concrete Pool Decks Built Base-Up for Settling and Freeze-Thaw in Iowa

Here's how we build a Grimes pool deck that holds, step by step. It starts underground, because a deck is only as stable as the ground beneath it. We excavate, grade, and compact the base, set forms and reinforcement, pour an air-entrained mix, finish for traction, then cure it before anyone walks on it. That sequence matters most here, where central-Iowa winters run 100 to 120 freeze-thaw cycles and a corner cut anywhere shows the first cold season.

Grimes's fast growth put pools on heavy glacial soil. With a high share of homes built after 2005 on the northwest metro edge, much of the ground near the SE 37th Street corridor is dense till prone to settlement. So we build the deck from the base up to stay level as that soil adjusts under new construction.

Concrete pool deck poured by JLB in Grimes, Iowa
01

Step one: the base does the work

Pool Decks in Grimes, Iowa — Step one: the base does the work

The base decides everything that follows.

We excavate and compact the ground under the deck so it bears the load evenly rather than settling into a soft pocket. On Grimes's settlement-prone till, that groundwork is where the deck is won or lost.

Grading sets the drainage early.

Proper exterior grading keeps water from pooling against the deck and the deep basements common in Grimes, so we shape the grade before the pour to send splash-out and snowmelt away from the house.

02

Step two: the pour and the finish

Pool Decks in Grimes, Iowa — Step two: the pour and the finish

The mix is air-entrained for freeze-thaw.

We pour at 5 to 7 percent entrained air, the ACI range, so freezing water expands into the air pockets instead of scaling the surface off across 100 to 120 freeze-thaw cycles a winter.

The finish is textured for wet feet.

A troweled surface is slick when splashed, so every Grimes deck gets a broom, salt, or textured-stamp finish for grip. The look can match the house and still stay sure-footed near the water.

03

One crew, base to swim

Pool Decks in Grimes, Iowa — One crew, base to swim

JLB sets the pool, so the deck is one contract.

A fiberglass shell flexes with Grimes's settling till where gunite cracks, and our in-house crew digs dead-level, sets the shell, plumbs it, backfills to proctor standards in lifts, and pours the deck, every step with one team, dig to swim in four to eight weeks.

The free inspection starts the job.

We walk the lot, check how the heavy soil drains, and read the base the deck will sit on, so the plan reflects your yard before any concrete is ordered.

A concrete pool deck near the SE 37th Street corridor in Grimes, built base-up over compacted glacial till.

What Makes Grimes Concrete Different?

Central Iowa concrete endures 100 to 120 freeze-thaw cycles in a single winter. Each cycle expands trapped moisture and opens micro-fractures, which is why air-entrained mixes and correct joint placement matter far more here than in milder climates.

42"
Frost depth — JLB sets footings below it
100-120
Freeze-thaw cycles every central-Iowa winter
5-7%
Air entrainment in our freeze-thaw flatwork
Des Moines Lobe glacial till
The ground every Des Moines-metro slab is built on

How JLB Handles Pool Decks in Grimes

1

Free On-Site Inspection

We measure the area, check how it drains, and assess the base before quoting.

2

Tear-Out & Haul-Off

The old driveway comes out and we remove the debris so we start on solid ground.

3

Subgrade Prep

We compact and grade the base so the slab bears evenly over central-Iowa soil.

4

Forming & Reinforcement

Forms are set to grade and we add rebar or mesh where the load calls for it.

5

Air-Entrained Pour

We place a 5-7% air-entrained mix built for Iowa freeze-thaw.

6

Finish & Saw-Cut Joints

Broom or decorative finish, then control joints cut at planned intervals.

7

Cure & Protect

We protect the pour while it cures so it gains full strength without scaling.

Why Grimes Homeowners Choose JLB for Pool Decks

Air-entrained mixes and correct expansion joints for Iowa soil movement and freeze-thaw

JLB can set the pool AND pour the deck — one crew, one contract

Proper reinforcement for a deck that stays level

Free inspection

Concrete Pool Decks in Grimes — FAQ

We excavate and compact the base, set forms and reinforcement, pour an air-entrained mix, finish it for traction, then cure it before anyone walks on it. Starting underground is what keeps the deck level on Grimes's settling glacial till.

Not if it's built base-up. Much of Grimes sits on dense till prone to settlement, so we compact the subgrade and reinforce the slab so the deck bears its load evenly and stays level as new-construction ground adjusts beneath it.

Central Iowa winters bring 100 to 120 freeze-thaw cycles. The 5 to 7 percent entrained air JLB pours gives freezing water room to expand inside the slab instead of scaling the surface off cycle after cycle, which is what keeps the deck intact.

Proper exterior grading sends splash-out and snowmelt away from the house rather than pooling against the deck and the deep basements common in Grimes. We shape that grade before the pour so drainage is built into the deck from the start.

Yes. Our in-house crew digs dead-level, sets the fiberglass shell, plumbs and backfills to proctor standards in lifts, then pours the deck, every step with one team. Dig to swim runs four to eight weeks under one contract.

Get Your Free Pool Decks Estimate in Grimes

Fill out the form and the JLB team will reach out within 24 hours. Or call us now at (515) 717-8560.

Our Central Iowa Offices

Local crews serving the Des Moines metro. We come to you.

JLB Basement Waterproofing & Foundation Repair — Van Meter

325 Grand St
Van Meter, IA, 50261
(515) 642-3406 View on Google Maps

JLB Basement Waterproofing & Foundation Repair — Des Moines

97 Indiana Ave Suite #1
Des Moines, IA, 50314
(515) 717-8560 View on Google Maps

Ready to Pour? Get a Free Estimate.

A free on-site estimate tells you exactly what your pool decks project takes — and what it costs. Call (515) 717-8560.

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