Commercial · Gladstone, MO
Concrete foundations and sitework in Gladstone, MO — residential additions and commercial scopes.
Gladstone Concrete Company handles concrete foundations, slabs, and sitework for residential additions and commercial projects across north Kansas City. Foundation and sitework scopes are assessed individually — scope, crew requirements, engineering coordination, and timeline are all evaluated before we commit to a project.
Free Estimate
Tell us about your project
We respond within one business day.
The Finished Result
A foundation and slab that supports what goes above it for decades.
Foundation and sitework concrete is invisible once the building is up — but it determines the stability of everything above it. Frost depth compliance, correct reinforcement, sub-base preparation, and appropriate PSI specification are the factors that matter here. We don't cut corners on the work no one sees.
Request Free Estimate
Service Overview
What foundation and sitework includes
Foundation and sitework encompasses a range of scopes: slab-on-grade foundations for detached garages, outbuildings, and workshops; concrete foundations for residential additions; commercial building foundations; and site preparation including excavation, grading, and drainage integration before the concrete is poured.
These projects are more complex than standard residential flatwork. Engineering input, permit coordination, and precise forming are typical requirements. We evaluate each project individually before committing to a scope or timeline.
Common reasons for this service
- Detached garage or outbuilding foundation. Pouring a concrete slab or perimeter foundation for a new detached garage, workshop, shed, or accessory structure.
- Residential addition foundation. Foundation work for a room addition, sunroom, or enclosed porch — connecting to the existing structure.
- Commercial building foundation. Foundation slabs and footings for commercial construction projects.
- Workshop or agricultural building slab. Heavy-duty concrete slab for agricultural, shop, or storage building use.
- Site preparation for development. Grading, excavation, and concrete work as part of broader site development.
What Matters
The technical factors that determine whether this project lasts.
These aren't variables that show up on a finished surface — they're what's underneath it.
Frost depth compliance
In north KC, footings need to sit below the frost depth — typically 28–36 inches. Shallow footings move with frost and transmit that movement to the structure above.
Sub-base soil bearing capacity
Clay soils in north KC have variable bearing capacity. Some areas require additional sub-base preparation, soil compaction testing, or soil remediation before a foundation pour.
Reinforcement specification
Rebar size, spacing, and placement are determined by load requirements and engineering specifications. Foundation concrete is not poured without correct reinforcement.
Concrete PSI for the application
Foundation concrete is typically 3,500–4,000 PSI for residential applications. Heavier commercial loads require higher PSI specifications.
Waterproofing and drainage integration
Foundations in north KC's clay soil need drainage planning — drainage gravel, drain tile, and sometimes waterproofing — to manage the high moisture environment.
North KC Conditions
How Gladstone's soil and climate affect foundations & sitework.
Kansas City clay bearing capacity
Expansive clay beneath KC residential lots requires careful assessment before foundation work. Clay that is saturated or disturbed behaves very differently than clay in equilibrium.
Frost depth in north KC
Frost penetrates 28–36 inches in the KC metro in typical winters. Foundation footings below this depth are not affected by frost heave. Footings above it will move.
High moisture environment
The combination of clay soil and KC's wet springs creates a high-moisture environment around foundations. Drainage design isn't an afterthought here.
The Process
From your first call to the finished project.
Request an estimate
Provide project details — scope, structure type, size, and any available plans.
Site visit and assessment
We assess site conditions, soil, drainage, and project requirements before scoping.
Engineering coordination
For projects requiring engineering, we discuss what's needed and work within the project's technical requirements.
Written scope
Written estimate with scope, spec, and fixed price after full assessment.
Excavation, forming, pour, finishing
Site prepared, footings and forms set to spec, concrete poured, reinforcement placed, finished.
FAQ
Common questions about foundations & sitework in Gladstone, MO.
What PSI concrete should a residential foundation use?
Residential foundations and slabs typically use 3,500–4,000 PSI concrete. Higher-load commercial applications require 4,000–5,000+ PSI. The specific PSI is determined by the load requirements and any engineering specifications for the project.
How deep do footings need to be in north KC?
Frost depth in the Kansas City metro is typically 28–36 inches. Footings need to sit below that depth to avoid frost heave movement. Shallow footings in north KC are one of the most common causes of foundation settlement.
Do you coordinate with structural engineers?
For projects that require engineering input, yes — we work within the engineering requirements. Permit-required projects that need a stamped structural plan are coordinated accordingly.
What's included in site preparation?
Sitework can include excavation, grading, drainage installation (gravel, drain tile), sub-base compaction, and preparation for the concrete forms. Scope depends on existing site conditions — we assess at the site visit.
Can you pour a slab for a detached garage?
Yes. Detached garage slabs are a common scope for us — appropriate frost-depth footings, interior slab, drain if required, and correct PSI for vehicle loads.
Serving north Kansas City
Ready to discuss your foundation or sitework project?
Free estimates for foundations & sitework across Gladstone and north Kansas City.