House lifting uses synchronized hydraulic jacks to raise entire buildings for foundation repair, flood protection, or adding new floors. Each jack can lift several tons, and dozens are controlled at once to keep the structure level—an uneven lift can cause cracks or collapse. The process raises houses by a few millimeters per step until reaching the target height, sometimes over 2 m. Afterward, workers rebuild or reinforce the foundation or add a new lower floor. It’s safer and 40–60% cheaper th