When it comes to landscaping to prevent basement flooding, one of the most fundamental rules is to grade away from the house. While most homes, in theory, should be built slightly above the landscaping or lawn, we all know years of haphazard DIY-ing or home additions can flatten out the grade. There are two key ways homeowners can landscape to keep that important slope.
Make sure your lawn is graded in the right direction: Before planting seed or rolling out sod, the soil must be adequately graded away from your home. This gradual slope, combined with grass’s natural ability to absorb water, makes an excellent and relatively low-maintenance way to prevent basement flooding. Admittedly, getting that grade just right can be tricky. If you are unsure of your skills or lack the equipment, it’s probably a good idea to seek a professional landscape grading service near you.
Create a gap between the siding and mulch: If you are planting or reviving a garden right next to the house, be sure to create a barrier between the siding and the area where you will plant. Dig a trench that is 6 to 8 inches wide and about 6 inches deep. Fill the trench with rocks to prevent water from pooling. The area of the bed where you plant should be a few inches lower than this barrier trench to help maintain water runoff away from the house.