Experienced carpenter Grant Dempster began underpinning homes in 2005 and established Complete Underpinning in 2013. Since then, he and his team have built a strong reputation across South Australia for delivering reliable, high-quality underpinning solutions.

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As a locally owned and operated business, Complete Underpinning is known for successfully repairing and restoring homes affected by foundation movement. With in-depth knowledge of South Australia’s soil conditions and the maintenance they require, we provide targeted solutions for damaged and subsiding foundations.

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We work closely with homeowners, builders, insurance companies, engineers, and businesses, offering practical and cost-effective solutions tailored to each individual project.

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We understand how important your home or business is to your livelihood. That’s why we take the time to thoroughly assess your foundation issues and deliver the most effective, long-lasting solution with care, precision, and commitment.