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.
Remove mold from your house before it damages your health. Mold, like any other part of nature, has its place in the environment. Outdoors, it breaks down dead materials, but indoors, mold can pose a danger to the health of a homeâs inhabitants.. Wash the moldy surface with a warm water detergent solution, containing 1 cup detergent and 1 gallon water, using a sponge. Allow the surface to air dry and then wash it again using a bleach solution of 1/4-cup bleach added to 1 gallon of water.