To help minimize foundation settling, it is crucial that moisture levels in the soil remain fairly consistent. In San Antonio, this is sometimes a very difficult task! With droughts in the Summer and the Spring rainy season, often drainage correction is helpful to achieve this balance. Gutters with properly placed downspouts, positive drainage (away from the structure), and retaining walls are among more cost effective options to help stop the flooding. Drainage correction can include french drains, sump pumps, or surface drains and will help to eliminate ponding water that may persist after a rain.
It is important to remember to use soaker hoses or drip lines during the hot dry months to prevent dry cracked soil, which is just as much a culprit in causing foundation movement and foundation settling.