1 Total costs (materials plus shipping and labor) for installing a straight, return or L-shaped stair can run $1,300-$7,000 or more. 2  Materials plus labor for custom-built wooden stairs, such as a sweeping circular or elliptical design, can cost $10,000-$30,000 or more, depending on the size, style and type of wood.
Make another bleach solution and pour it onto the driveway. Wait 20 more minutes for the bleach to kill the mold. Rinse the driveway thoroughly with a garden hose. Prevent future mold with a borate solution. Mix 1/4 cup of borate detergent with 1 gallon of warm water in a bucket. Pour the solution onto the driveway and allow it to dry. Don't rinse it.
Start by removing and inspecting all closet items. Clothes and items that are mold-infested should be bagged and discarded. Remaining building materials/surfaces and items should be treated as follows: 1  Spray the affected area with Concrobium Mold Control. 2  Allow to dry completely. Spray the affected area with Concrobium Mold Control. 2  Allow to dry completely. 3  As it dries, the solution forms a film that crushes and eliminates the underlying mold spores. 4  Clean the surface with a Concrobium-dampened cloth or brush. 5  If mold residue remains, paint the surface or take other cosmetic steps as required.