Maryland Mold & Waterproofing
A locally owned business
you can depend on!
Click here

Proudly Serving Baltimore & Annapolis MD
& Surrounding Areas

Exterior Waterproofing in Baltimore & Annapolis MD and Surrounding Areas

Exterior Waterproofing in Baltimore & Annapolis MD and Surrounding Areas

Exterior waterproofing involves excavating 6 to 8 feet down to the foundation wall footer and installing new exterior footing drains, which are sometimes termed French drains. In addition to the new exterior footing drains, Maryland Mold & Waterproofing will also install a waterproofing membrane to the exterior wall’s surface. This membrane will serve as a drainage material directing the water down the foundation wall, into the exterior footing drain to make sure that water doesn’t infiltrate the basement or crawl space again.


A comprehensive study by the Concrete Foundation Association (CFA) determined that 85% of home structural damage is caused by poor drainage. Depending on the number of areas affected by the water seepage, the extent of the surface water and the water table in each particular site, exterior basement waterproofing  - also known as positive side waterproofing since it addresses the source of water where it enters the foundation - may involve one wall of the foundation, or multiple walls – which would of course increase the project’s overall cost.


Due to the extensive exterior excavation required, exterior basement waterproofing is often more expensive than interior drainage systems, which utilize sump pumps to remove the water below the basement floor. However, exterior excavation with wall & footing drains provide the advantage of redirecting water from the home before it ever gets into the home and requires little to no ongoing maintenance once the project is complete.

Contact Us for Exterior Waterproofing in Baltimore & Annapolis MD and Surrounding Areas


At Maryland Mold & Waterproofing, we take a comprehensive approach and implement a proven solution to minimize the impact to your home’s appearance while the excavation process is in place. Exterior excavation is a more disruptive process to your landscaping, decks, sidewalks and planting near the foundation wall where the drainage needs to be replaced. Ask our experienced experts which waterproofing process is the right one for you, your family and your property.

Schedule a FREE Estimate

Fields with (*) are required.

For basement drainage in your home, contact us today!

Free Estimate!