Rowhouse cellar seepage
Old brick and stone cellars in Baltimore take water through walls and floors and share drainage problems with neighbors.
Interior Drainage SystemsNortheast & Mid-Atlantic · MD
Basement waterproofing in Maryland
Hot, humid summers and moderate winters with freeze-thaw cycles. Western Maryland is mountainous and colder; central Maryland has piedmont clays over rock; the Eastern Shore is low coastal plain with high groundwater.
Free referral · Maryland
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What kinds of foundations do homes in Maryland have?
Baltimore rowhouses have brick and stone cellars; suburban homes around Washington and Baltimore have block and poured basements, many with walkout lower levels on sloped lots.
What basement and foundation problems are most common in Maryland?
Walkout and hillside runoff
Sloped suburban lots send runoff to the uphill wall and down window wells.
Window Well Leak RepairExpansive piedmont clay
Some central Maryland clays swell and shrink, cracking walls and slabs.
Structural Foundation Crack RepairWhich Maryland cities have local guides?
Which parts of Maryland are covered?
- Baltimore
- Columbia
- Germantown
- Silver Spring
- Frederick
- Annapolis
- Salisbury
What do Maryland homeowners ask most?
Does a Maryland basement contractor need an MHIC license?
Yes, most home improvement work in Maryland requires a Maryland Home Improvement Commission license, and the license number must appear in contracts and ads.
My rowhouse basement leaks along the shared wall. Whose problem is it?
Water often travels along party walls from neighboring yards or downspouts. A contractor can usually manage it from your side with interior drainage, but talking to neighbors about gutters and grading helps.
Where can I verify this information about Maryland?
- 1USDA Natural Resources Conservation Service: Web Soil SurveyLook up soil drainage class and shrink-swell potential for any lot in Maryland.
- 2NOAA National Centers for Environmental Information: U.S. Climate NormalsAverage precipitation, snowfall and temperatures for weather stations near Maryland.
- 3FEMA: Flood Map Service CenterCheck whether a property in Maryland is in a mapped flood zone before finishing a basement.
- 4U.S. Census Bureau: QuickFactsHousing and population facts for Maryland, including the age of local housing stock.
- 5Federal Trade Commission: Hiring a ContractorWhat to check before hiring: licensing, insurance, written estimates and payment terms.
Wet basement or cracked foundation in Maryland?
By calling, you agree to be connected with an independent waterproofing contractor, who may call or text you back about your request at the number you call from. Calls may be recorded for quality and routing. Consent is not a condition of any purchase; you can opt out at any time, and message and data rates may apply. Privacy policy.