First, and perhaps most obvious, the size of the area will affect the price of the project. Pricing typically is calculated on the basis of the area’s square footage; the larger the area, the lower the price per square foot.
Second, most decorative concrete contractors charge more for interior trowel down projects than exterior ones, normally because we have to be much more careful about protecting things such as walls, furniture and your other personal property.
Another factor that will influence a decorative concrete contractors pricing is what kind of prep work will need to done before applying the trowel down. This includes removing carpet, wood, linoleum, and tile. Carpet is not hard to remove, it comes up quickly but that is definitely not the case with the other three, the harder it is to remove, the higher the cost.