Crawl Space Waterproofing in Maryland
Crawl space waterproofing is the integrated solution for Maryland homes where water actively enters the crawl space, combining interior drainage, sump pumping, vapor barriers, and moisture management into a system that keeps the space dry regardless of what Maryland weather delivers outside.
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The Maryland Crawl Space Waterproofing Problem
Maryland sits at the intersection of several water-related challenges: Piedmont clay soils that hold water and generate hydrostatic pressure, bay-area topography that creates high water tables in many jurisdictions, humid summers that push moisture through porous masonry, and nor'easters that deliver inches of rain in hours. A crawl space in this environment faces water pressure from multiple directions simultaneously.
Exterior waterproofing, excavating around the foundation to apply coatings and drainage board, is expensive and disruptive, and often impractical for existing homes. Interior waterproofing systems, installed from within the crawl space, are the proven, cost-effective solution for Maryland's existing housing stock. OBW has been installing interior waterproofing systems in Maryland crawl spaces since 1953.
OBW's Complete Crawl Space Waterproofing System
A complete crawl space waterproofing installation typically includes:
- Interior perimeter drainage channel, collects water at the wall-floor joint and routes it to the sump basin
- Sump basin and pump, receives collected water and evacuates it through a discharge line; battery backup protects against power outages during storms
- Heavy-duty vapor barrier, 20-mil reinforced liner covers the crawl space floor, walls, and piers to block ground moisture evaporation
- Sealed foundation vents, open vents are sealed to prevent humid outdoor air from re-entering the now-dry crawl space
- Dehumidifier, maintains safe humidity levels and provides continuous drainage to the sump basin
- Access door, sealed, insulated access door completes the enclosure
OBW's Workmanship Guarantee
Every OBW crawl space waterproofing system is backed by our workmanship guarantee. If the system ever fails to perform, we come back and make it right, at no additional cost. Our technicians are Maryland licensed (MHIC 4247), consultative and no-pressure, and focused on getting the job right the first time. That's been the Oriole Basement Waterproofing promise since Frank Pirog Sr. founded the company in 1953.
Ready to protect your crawl space?
Family-owned since 1953. Honest, consultative guidance. Backed by our workmanship guarantee. MHIC 4247.
Schedule Your Free Inspection (410) 879-3360