The sub-floor crawlspace is one of the most important, albeit most forgotten parts of a house. Maintaining a clean, healthy and dry crawlspace helps prevent against many health and structural related problems such as mold, mildew and organic growth, habitat for rodents and other pests, and foundation settling and dry-rot.
In our experience, poor roof water management is the number one cause of water intrusion in a basement or crawlspace. Ensuring that the gutters, downspouts and rain drain systems are functioning properly and draining water away from a structure is always the first step to solving any drainage problem. Common issues associated with this service are overflowing gutters, downspouts draining too closely to the structure, broken or clogged rain drains causing roof water to back-up next to a structure, etc.
Any structure that is located below ground level is always susceptible to having issues with water. Regardless of whether a basement is finished or not, it is very important to protect it from water intrusion to prevent against health and structural issues. Extensive interior or exterior basement waterproofing projects can be very costly. However, there is often a simple solution or a step-by-step process that can be completed to mitigate any issues. Roof water management, existing drainage maintenance and correcting exterior grading are often more cost-effective solutions that should be considered first.
Second to roof water management, the exterior grading and landscaping improvements surrounding any structure are other solutions to consider to prevent drainage issues. It is especially important to divert water away from an affected structure or area in places where the soil content doesn't absorb water well. Soggy yards, patchy grass, deteriorating retaining walls, and excessive pooling on driveways and patios are all common problems associated with landscape drainage and surface water management.