Planning a home renovation or need to prepare your walls for a flawless premium finish? OSAT provides expert hacking, demolition, and wall plastering services for HDB flats, condos, and commercial units across Singapore. Whether you want to safely hack down a partition wall to create a modern open-concept space, clear out old built-in cabinets, or fix rough, uneven walls with high-quality skim coating, our skilled team delivers clean, safe, and precise workmanship. Fully complying with strict HDB and BCA building guidelines, we ensure your structural preparation is done right from the start.