A recent project in Cambridge, Ontario showed how quickly underground service work can become complicated when excavation takes place beside an older home. In this case, the property’s stone rubble foundation was vulnerable to movement, and the nearby trenching created a structural issue that required immediate attention before work could continue.
Sewer Installation Delayed Due to Foundation Failure
During sewer installation, a utility contractor trenched a gas line adjacent to a property supported by a stone rubble foundation. The nearby excavation and vibration caused sections of the existing wall to collapse, forcing all underground service work to stop. This situation showed how older foundations can require immediate structural support before sewer and utility work can continue safely.
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The Challenge of Sewer Installation Beside an Older Foundation
The original approach was to use timber lagging to protect the wall while allowing for a 14’-0” sewer excavation within 8’-0” of the foundation. However, the property’s narrow access created another major obstacle. With the laneway measuring only 110 inches wide, standard drilling rigs could not access the site.
This combination of restricted access, active excavation, and foundation failure created a high-risk condition. The home required urgent structural support, but the confined work area limited the equipment and repair methods available. In tight-access projects like this, specialized underpinning and foundation repair solutions are often the only practical path forward.
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The Engineered Foundation Repair Solution
Cochren Foundation and Repair designed a solution to stabilize the structure and allow the underground work to move ahead safely. The repair plan addressed both the immediate structural failure and the limited site access.
The work included shoring the front of the house, removing damaged sections of the foundation, installing five 14’-0” deep helix piers with a 14 kip capacity, and constructing a new reinforced concrete foundation wall. This type of engineered repair is often essential when sewer installation or utility trenching affects the stability of an existing foundation.
Engineered drawings were provided within 48 hours, and the stabilization work was completed in just 3 business days. Fast response times are critical on emergency structural repair projects, especially when municipal or utility work has been delayed.
The Result
By combining rapid engineering, tight-access construction methods, and proven foundation underpinning expertise, the property was stabilized and prepared for the continuation of underground services. This Cambridge project demonstrates how professional foundation repair contractors can help prevent further damage, restore structural support, and keep essential sewer and utility installations on track.
For property owners, contractors, and municipalities dealing with excavation near older homes, this case highlights the importance of acting quickly when foundation movement or wall failure occurs. A properly engineered repair can protect the structure and reduce costly delays.
Contact us today for a foundation estimate: 519-647-0256.
You can also submit your estimate request online.