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The building materials and tools shown in the video are available via affiliate links. If you purchase via these links, you support my YouTube channel with a small commission, at no additional cost to you: Demolition hammer 60J: https://amzn.to/3UqfRuj Construction film: https://amzn.to/3JLvlTn Concrete mixer: https://amzn.to/3O99Flz 5 L concrete plasticizer: https://ebay.us/qDMMJp Concrete vibrator: https://amzn.to/4dkHxY1 Wheelbarrow: https://amzn.to/3EezdsO Folding rule: https://amzn.to/4dhDSu2 Zipper wheel dumper: https://ebay.us/N97Qsd Sledgehammer: https://amzn.to/3W63uVu Shovel: https://amzn.to/3TB048c Frankfurt shovel: https://amzn.to/3IbcZM3 3M hearing protection: https://amzn.to/3Wqbij8 JCB excavator (model): https://amzn.to/3UsSdgQ Makita cordless screwdriver: https://amzn.to/3SpeNVa In this video I show you how I deepen the foundation of my house to make it frost-proof. I achieve this by installing a concrete underpinning. To do this, I work segment by segment and always concrete segments that are around 1.2m long. You will see how I learn with each segment and get better step by step. 00:00 Digging 03:07 Concreting 06:56 Underpinning the corner of the house 09:31 Underpinning the middle segment