Basement Waterproofing

JPM Basement Waterproofing Pittsburgh has been providing top-notch basement waterproofing services to homeowners in the Pittsburgh area for over 20 years.

Key Takeaways

  • Basement Waterproofing Is Essential for Protecting Homes From Water Damage, Mold Growth, and Structural Issues
  • Exterior Waterproofing Involves Excavation, Applying Waterproof Membranes, and Installing Drainage Systems
  • Interior Waterproofing Focuses on Sealing Cracks and Gaps, and Installing Sump Pumps to Remove Water
  • Waterproofing Basement Walls Requires Identifying and Repairing Cracks, Then Applying a Sealant or Membrane
  • Sump Pumps Are Crucial for Interior Waterproofing, as They Remove Water From the Basement and Protect the Foundation


Waterproofing a basement wall involves applying a sealant or membrane to the interior or exterior of the wall to prevent water from seeping through. The most common methods for waterproofing basement walls include applying a waterproof paint, installing a drainage system, and using a sump pump to remove any water that does enter the basement.

Before beginning the waterproofing process, it is essential to identify and repair any cracks or gaps in the basement wall. Once the wall is properly prepared, the chosen waterproofing solution can be applied, ensuring a dry and healthy basement environment.


Exterior basement waterproofing is a comprehensive approach that addresses water infiltration from the outside of the foundation. This method involves excavating the soil around the foundation walls, applying a waterproof membrane or coating, and installing a drainage system to direct water away from the home.

The process of exterior waterproofing typically includes the application of a damp-proofing agent, such as asphalt-based sealants or rubberized membranes, to the exterior walls. Additionally, a French drain or footing drain may be installed along the perimeter of the foundation to collect and divert groundwater, preventing it from seeping into the basement.


Interior basement waterproofing focuses on preventing water from entering the basement from the inside of the foundation. This approach involves sealing cracks and gaps in the basement walls and floor using hydraulic cement, masonry sealants, or epoxy injection. Interior waterproofing methods also often include the installation of a drainage system, such as a French drain or a baseboard drainage system, to collect and redirect any water that does manage to enter the basement.Another crucial component of interior basement waterproofing is the installation of a sump pump. Sump pumps are designed to remove water that accumulates in a sump pit, which is typically located at the lowest point of the basement. By pumping water out of the basement and away from the foundation, sump pumps play a vital role in maintaining a dry and healthy basement environment.

Frequently Asked Questions

Signs of a leaking basement include water stains on walls or floors, a musty odor, visible mold or mildew growth, and efflorescence on concrete surfaces. Other indicators may be peeling paint, warped or buckling floors, and increased humidity levels in the basement space.

Homeowners should also be aware of potential external signs of basement leaks, such as:

  • Pooling water near the foundation
  • Cracks in the foundation walls or floor
  • Overflowing gutters or downspouts
  • Soil erosion around the foundation
  • Water-saturated soil near the foundation

If any of these signs are present, it is essential to address the issue promptly to prevent further water damage and potential structural issues. Contacting a professional basement waterproofing company, like JPM Basement Waterproofing Pittsburgh, can help identify the source of the leak and provide effective solutions to keep the basement dry and protected from future water infiltration.

To prevent water from entering your basement, there are several steps you can take: 

  • Ensure proper grading around the foundation to direct water away from the house
  • Install and maintain gutters and downspouts to channel water away from the foundation
  • Seal any cracks or gaps in the foundation walls and floor with hydraulic cement or masonry sealant
  • Apply a waterproof coating or membrane to the exterior foundation walls
  • Install an interior drainage system, such as a French drain or sump pump, to collect and remove any water that does enter the basement

By implementing these waterproofing measures, homeowners can significantly reduce the risk of basement water intrusion and the associated damage to their property and belongings.

The average cost of basement waterproofing can range from $2,000 to $10,000, depending on the size of the basement and the extent of the waterproofing needed. Factors such as the type of waterproofing system, the materials used, and the complexity of the installation process can also affect the overall cost.

The duration of basement waterproofing depends on the size of the basement and the extent of the waterproofing work required. On average, basement waterproofing can take anywhere from 1-3 days to complete, but more extensive projects may take up to a week or longer.

Yes, waterproofing a new home’s basement is essential to prevent water damage, mold growth, and structural issues. Even new homes can experience basement water problems due to various factors such as soil conditions, groundwater levels, and improper drainage.

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