Foundation Repair

Expert Structural Concrete & Foundation Repair for Commercial, Residential and Agricultural Infrastructure.

Foundation Repair

Specializing in the structural restoration of deteriorating foundations across Ontario. High-density Shotcrete (Gunite) remains the superior solution for reinforcing both aging and new infrastructure. Our product ensures a high-strength solution that fills voids, structural shifts, and prevents moisture entry where traditional concrete pouring falls short.

Professional structural foundation restoration for a timber frame barn using reinforced shotcrete (gunite) to stabilize and resurface a failing stone foundation.

At Koch Construction, we believe that the strength of a shotcrete (gunite) application is only as good as the surface beneath it. While others may spray over existing damage, we specialize in high-quality prep work to ensure a permanent, enduring bond for every structural restoration project.

Professional interior barn foundation restoration showing deep pressure washing and surface preparation of an old fieldstone wall to ensure maximum shotcrete adhesion.

With over 25 years of experience, Koch Construction is the leader in structural foundation restoration. There is rarely a failing foundation too far gone or a complex structural issue we haven’t solved. 

From historic house foundation repair for structures built on dirt to complete wall replacement for agricultural barns, we have the specialized expertise to repair it all. Our team excels in transforming severely compromised structures—including those with missing walls—into stabilized, enduring assets.

Industrial building wall restoration featuring a reinforced shotcrete (gunite) application and a smooth professional finish to enhance structural durability and moisture protection.

Excellence and Experience

Featured Projects:

Structural Shotcrete (Gunite) for Decaying Stone Walls

Completed structural foundation restoration on a home featuring a reinforced shotcrete (gunite) finish over a previously deteriorating stone foundation.
This project showcases a complete structural foundation restoration for a historic residence. At Koch Construction, we utilize high-performance shotcrete (gunite) to encapsulate and reinforce these failing substrates.

High Strength Shotcrete Reinforcement for Deteriorating House Foundation

Structural concrete foundation restoration showing a freshly applied, reinforced shotcrete finish to stabilize and protect a tunnel.
Shotcreted (gunited) underside of existing culvert tunnel. Structural shotcrete applied over reinforcing mesh.

Shotcrete (Gunite) Tunnel Restoration

Structural restoration of a bank barn foundation using shotcrete (gunite) to stabilize and resurface deteriorating stone and mortar walls.
Post shotcrete application of an old bank barn.

Bank Barn Restoration with Shotcrete (Gunite)

Reinforced concrete resurfacing for bridge pier foundations to eliminate water erosion and restore structural stability.
Bridge foundations are constantly under attack from river currents and debris. This project showcases our concrete stabilization process, where we applied gunite to repair scoured piers. Our meticulous prep work ensured a superior bond, creating a hardened shield that protects these critical supports against future environmental wear for decades to come.

Bridge Abutment Protection & Concrete Stabilization

Agricultural bunk silo wall restoration using high-density shotcrete to repair concrete erosion and provide a protective acid-resistant finish.
Bunk silos face extreme conditions, including heavy machinery impact and chemical erosion from silage acids. This project highlights our specialized bunk silo restoration process, where we resurfaced deteriorating concrete walls with high-strength shotcrete.

Bunk Silo Wall Rehabilitation & Concrete Resurfacing