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.
Step 1 - Remove Stains. Use a strong detergent to wash away any garage floor stains caused by oil, gasoline, grease, or the like. Scrub stubborn ones with a sponge or cleaning brush until completely removed, and then be sure to rinse thoroughly.horoughly clean off from your garage floor any remaining chemical residue from paint strippers and/or muriatic acid. Use another application of detergent, followed by a rinse from your pressure washer or garden hose nozzle.