Bryn Mawr, PA's Leading Bowing Wall Repair & Basement Remodeling Pros

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Bryn Mawr's Basement Waterproofing Contractor

Basement Systems USA is the local, family owned contractor in Bryn Mawr for waterproofing, finishing, crawl space repair and mold removal. With over 75 years combined experience and a full-time, professional staff we are ready to serve you and improve your home. 

Basement Waterproofing & Crawl Space Repair in Bryn Mawr

Flooding, water seepage or even high humidity can quickly result in mold growth and water damage in your basement or crawl space. We prevent this from happening by installing an interior drainage system in the basement that is connected to a high volume sump pump. Any water that makes it to the basement is collected and pumped out of the home without you even noticing. 

Just like the basement, in the crawl space we similarly place a sump pump system and dehumidifier to prevent water issues. The entire area is encapsulated with vapor barrier to prevent mold growth. Our crawl space system comes with a 25-year warranty. 

We Provide:
  • Basement Waterproofing
  • Crawl Space Encapsulation
  • Exclusive, Patented Products
  • Humidity Control
  • Structural Repair
  • Basement Egress Windows
You Receive:
  • Permanently Dry Basement
  • Clean Protected Crawlspace
  • Protection against Mold
  • Improved Home Value

If the walls of the basement or bowing inwards we install wall anchors or braces to straighten the walls. If the floor above the crawl space is sagging we install SmartJack support jacks to raise the floor back to a level position. Our Bryn Mawr waterproofing systems come with lifetime warranties. 

Basement Finishing & Remodeling in Bryn Mawr, PA

Waterproofing your basement prevents outside water from coming in but what if a pipe bursts or the water heater leaks inside the home. A newly finished basement done by your average contractor will mold and rot if there is an internal leak. You'll have to tear out your new basement! We fix this issue.

Our Products Include :
  • Waterproof, washable, insulated walls           
  • Mold-Resistant, No-Sag suspended ceiling
  • Modular carpet, tile & faux wood flooring
  • Basement egress windows

  • Energy-efficient, double-paned basement windows
  • Attractive Sunhouse basement window wells
  • French, bifold, louvre & six-paneled steel doors

Unlike the average Bryn Mawr contractor we use completely inorganic, waterproof materials. Even if the basement floods your walls and floors will not be damaged by the water. These waterproof products are patented and are built to create an attractive finished basement that lasts a lifetime.

Bryn Mawr Mold Removal & Remediation

At Basement Systems USA, we provide complete mold remediation and removal for basements and crawl spaces. We thoroughly test any questionable areas for mold, and mold removal system is a proven, effective, and lasting solution. Unlike other mold remediation companies, our background in basement & crawl space waterproofing allows us to address the excess moisture that cause the mold growth and make sure that the mold won't come back after it has been remediated. We are also AMA Certified.

Our Services Include :

  • Basement Mold Removal
  • Crawl Space Mold Removal
  • Black Mold Removal
  • Dry Rot Cleaning and Repair


  • Dehumidifier installation
  • Shockwave by Fiberlock Disinfectant & Sanitizer
  • TBF Waterproof & Mold Resistant Wall Boards
  • Negative Air Machine Installation


Before and After Pictures from Bryn Mawr

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For this encapsulation job we used a Cleanspace Vapor Barrier, Silver glo insulation which features a radiant barrier that reflects heat back into your crawlspace and TerraBlock floor insulation which is installed beneath the CleanSpace to insulate the floor.

Work Requests From Bryn Mawr, PA
Project Location: Bryn Mawr, PA
Water seeping into crawl space and one corner of garage during heavy rain.
Project Location: Bryn Mawr, PA
Setup home radon testing
Project Location: Bryn Mawr, PA
2 basement windows replace; 2 window well and cover. Currently, curved brick window wells are falling apart.
Project Location: Bryn Mawr, PA
I am looking to install a sub slab depressurization system, preferably tied in with my sump pump system.
Project Location: Bryn Mawr, PA
We have an unfinished basement and would like it finished. we do have plans from our decorator.
Project Location: Bryn Mawr, PA
I have a leaking window well
Project Location: Bryn Mawr, PA
Renovation of basement.
Project Location: Bryn Mawr, PA
Hardwood floors on 1st floor are cupping due to moisture in crawlspace. Need someone to look at and provide recommendation.
Project Location: Bryn Mawr, PA
We have a ~1000 sq. ft. walk-out basement that we would like finished. We want a relatively straight forward renovation, e.g. walls, ceiling with recessed lighting, storage space, shelves, and flooring.
Project Location: Bryn Mawr, PA
Water coming thru basement wall and through a slab
Project Location: Bryn Mawr, PA
Partially conditioned crawl space, water puddle, need estimate
Project Location: Bryn Mawr, PA
We have an unfinished basement (doesn't flood) and are looking to finish a portion of it for additional living space. We hope to be able to utilize the existing wood beam ceiling.
Project Location: Bryn Mawr, PA
I have been living in a 100 year old house for about 7 months and am concerned about mold in the basement.
Project Location: Bryn Mawr, PA
I am interested in getting a quote for some work in basement. Thanks.

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