Garnet Valley, PA's Basement Waterproofing, Crawl Space Repair & Indoor Air Quality Expert

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Garnet Valley's Basement Waterproofing Contractor

Basement Systems USA is the local, family owned contractor in Garnet Valley 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 Garnet Valley

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 Garnet Valley waterproofing systems come with lifetime warranties. 

Basement Finishing & Remodeling in Garnet Valley, 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 Garnet Valley 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.

Garnet Valley 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 Garnet Valley

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This customer had a partially below grade garage that would leak water around the window when it would rain. Upon inspection of the problematic wall, it was discovered that there was a hairline crack in the foundation that the homeowner tried to patch up themselves with a tar covering. Water eventually found its way through the patch and began puddling on the floor during rainstorms.

We came out and did a Polyurethane Injection with FlexiSpan crack repair. Our Polyurethane Injection penetrates deep into the foundation wall and once injected, the resin expands and turns into a waterproof foam barrier. Our Flexispan seals cracks with a flexible urethane sealant that stops water penetration. As in the name, our flexispan is flexible and moves with the wall, eliminating any re-cracking or seepage down the road.

Work Requests From Garnet Valley, PA
Project Location: Garnet Valley, PA
Basement free estimate
Project Location: Garnet Valley, PA
Sump running often; need to evaluate how well piping system is working- does not seem to be taking water away from the house (possible recycling water back into sump-running and running); may need additional battery back up or related solution.
Project Location: Garnet Valley, PA
We have an existing radon mitigation system but it is 17 years old and is starting to make noise. It appears to still be working. We would like it looked and at to know what the options are to fix or replace it.
Project Location: Garnet Valley, PA
We need to finish out our 850sf basement and add a bathroom without a shower or tub, We want an insulated Sheetrock ceiling and framing all around.
Project Location: Garnet Valley, PA
Need to have second exit from basement. The stairs are one, but a second needed...
Project Location: Garnet Valley, PA
I have a dirt basement. The crawl space needs to have insulation.
Project Location: Garnet Valley, PA
Water leaking by basement wall near sump pump drain
Project Location: Garnet Valley, PA
Want to finish the basement with egress window .
Project Location: Garnet Valley, PA
Water coming from where wall meets bilco door landing at bottom of steps. Water coming under door jam from bilco door landing into main basement. Bilco door landing at bottom of steps is about 4x4.

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