Concrete floors are extremely durable, simply due to concrete's inherent strength and hardness. A properly installed and sealed decorative floor is also scratch and stain resistant and will last for decades. Why do some houses have concrete floors? These days most homes are designed with concrete floors because damp proofing technology allows us to create a dry floor without an air gap. There are still be many suspended floors out there however, because retrofitting them is prohibitively expensive and often impractical.