Concrete Foundation Contractors in Edmond, OK
Slab-on-grade, stem wall, and pier-and-thickened-slab foundations for Edmond homeowners and builders — engineered for Edmond's mixed soil and rolling grade. (405) 458-4805.
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Edmond Fill Lots Need Pier Foundations — Not Slab-on-Fill
Edmond's rolling terrain means many new lots required fill to level the grade. Pouring a standard slab-on-grade on top of that fill is a setup for differential settlement — the slab cracks within a few years as the fill compresses unevenly underneath.
We just completed a pier-and-thickened-slab foundation on exactly this kind of lot in Edmond. Rather than pour on the fill, we drilled piers 5 feet deep to undisturbed soil and tied a thickened slab to the pier system. That foundation will outlast the house.
Slab-on-grade still works in plenty of Edmond — on lots with undisturbed native soil and stable grade. The job is knowing the difference before the truck shows up. We read the lot, the fill depth, and the soil transition first, then spec the foundation type.
Edmond Soil, Fill, & Foundation Type
Edmond sits on the northern Garber-Wellington formation with sandstone-influenced soil that can shift between sandy and clay-heavy across a single lot. Add the city's rolling grade and the prevalence of cut-and-fill lot prep, and the foundation-type decision becomes site-specific.
For undisturbed native lots, slab-on-grade with engineered base, rebar, and proper drainage performs well long-term. For fill lots, deeper foundations are the right call — piers to undisturbed soil, thickened slabs tied to the piers, or stem walls with proper backfill compaction.
On any Edmond foundation, drainage gets the same attention as the slab. Water that pools next to a slab edge accelerates the expansion-contraction cycle underneath, and that's a major cause of foundation movement we see in older Edmond homes.
How We Build It Right
Lot evaluation first
Soil read, fill assessment, drainage check — before we spec the foundation type. Every Edmond lot is different.
Slab-on-grade where appropriate
Engineered base, 4,000 PSI mix, rebar per spec, drainage detailing — for lots with undisturbed soil and stable grade.
Pier-and-thickened-slab
Piers drilled to undisturbed soil — typically 4–6 ft on Edmond fill lots — with the slab tied to the pier system.
Stem wall foundations
Footings to bearing soil, stem walls poured to grade, compacted backfill in lifts where appropriate to the build.
Drainage detailing
Slope-to-drain around the foundation perimeter; French drains where the lot grade requires them.
Builder coordination
Schedule with framers, plumbing, and inspectors on new-construction Edmond builds — we coordinate with the GC's timeline.
Get a Free Edmond Foundation Estimate
Free on-site estimate, clear scope, written quote. Call (405) 458-4805 or Email FDZ Construction.
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Frequently Asked Questions
- How do I know if my Edmond lot needs a pier foundation?
- If the lot required fill to level the grade — common on Edmond's rolling terrain — pouring slab-on-grade on top of that fill risks differential settlement. We read the lot first: how deep is the fill, what's the native soil underneath, and how was the original grading done. Pier-and-thickened-slab is the right call on most Edmond fill lots.
- How deep are the piers on an Edmond foundation?
- Typically 4–6 feet to reach undisturbed soil below the fill, depending on fill depth. We don't pick a number first — we drill to undisturbed soil and stop there.
- How much does a foundation cost in Edmond?
- Edmond foundations follow our OKC metro rates: roughly $9–$14 per square foot for standard slab-on-grade, with pier-and-thickened-slab and stem walls priced per the engineered spec and lot conditions. We give a real number after we read the lot — never over the phone.
- Do you work with new-construction builders in Edmond?
- Yes. We coordinate with the GC on schedule, with the framer on tie-in details, and with inspectors on each required stage. Most of our Edmond foundation work is on new-construction lots.
- How long does an Edmond foundation last?
- A foundation engineered for the actual lot conditions — right type, right base, right drainage — should outlast the structure on top of it. The foundations that fail in Edmond almost always had the wrong type chosen for the soil and fill conditions, or had inadequate drainage.
More From FDZ Construction
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FDZ Construction LLC is licensed, bonded, and insured in Oklahoma — 8+ years of experience serving the OKC metro, and every project is backed by a 2-year workmanship warranty.