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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 Kubota excavator for children: https://amzn.to/3Sq0PmQ A few months ago I underpinned one side of my house myself. Now I have had a construction company underpin the other side as part of my garage project. This gave me the unique opportunity to compare the same work and to make a step-by-step video for you in which I show all the work steps in detail how I did them and how the professionals did it. I also go into the amount of work and the costs. What would you do? Do the work yourself or hire a construction company? 00:00 Intro & planning 02:12 Excavation work / digging 03:40 Formwork 05:03 Concreting 07:37 Stripping formwork & result 09:12 Costs & effort