New Construction

Foundation Construction and Concrete Contractors

CNT Foundations provides the Charleston area with several new foundation construction services.

Helical Piles

A deep foundation solution that allows for construction in weak soil types and in limited access sites. Well known for their lack of noise and limited ground disturbance.

Helical Anchors & Tiebacks

Similar to helical piles, but are drilled into the ground at an angle, rather than straight down. They are designed to resist uplift tension from the attached object, such as a foundation wall.

Helical Pulldown Piles

Helical pulldown piles are helical piles that have been reinforced with a grout column along the shaft, allowing for greater load capacity while reducing friction from heaving and shifting soil.

Helical Micro Piles

With all the benefits of helical piles, helical micro piles are preferred for limited access sites that need a deep foundation solution.


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Retaining Walls

An effective solution to keep soil from shifting and encroaching on your property, retaining walls need expert attention to prevent them from falling and failing.

Grade Beams

As a type of footer, grade beams are generally used on steep slopes, weak soil, expanding soil and other situations where a deep foundation system is needed.


Footings, also known as footers, are used to support foundations where surface soil is less than optimal for constructing a subsurface foundation. Generally built wider than the foundation, footings add strength to the foundation by evenly distributing the load on weaker soil.


Concrete slabs for commercial construction often require a stronger mix and heavier reinforcement because of the increased structural load commercial spaces present.

CMU Piers

CMU piers are fire resistant with high durability.

CMU Walls

CMU walls are often used in commercial construction because they are available in several styles, their relative ease in installation and their fire-resistant nature. Concrete masonry units can be reinforced with rebar and layed to match the dimensions of your structure.

Cast in Place Concrete

The process of cast in place concrete allows for the on-site construction of concrete floors, walls, and roofs. Molds are used to make the dimensions of the structure while at the construction site.


A type of deep foundation solution that can be used when a structure is being expanded, such as adding a wing or story, which would result in the foundation no longer being able to support the structure. Usually achieved with helical piles or micro piles.

Remove and Replace Concrete

CNT Foundations can remove old or unwanted concrete from your commercial property. We take steps to ensure that your new concrete slab is level.

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"Out of the three companies that I had look at my floors, CNT was the only one that could tell me the real problem." - T.M.

"Some of the most knowledgeable and helpful people I've dealt with in a long time." - J.D.