Ellicott City, MD's Premier Structural & Crawl Space Repair Experts

Happy Customers Surrounding Ellicott City, MD
Work Requests

Click the icons to see what our customers had to say.

Get a Free estimate

Fill out the form below to have Basement Systems USA contact you shortly, or call Phone to contact Basement Systems USA immediately.

1 2 3

Ellicott City's Basement Waterproofing Contractor

Basement Systems USA is the local, family owned contractor in Ellicott City 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 Ellicott City

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 Ellicott City waterproofing systems come with lifetime warranties. 

Basement Finishing & Remodeling in Ellicott City, MD

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 Ellicott City 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.

Ellicott City 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 Ellicott City

Swipe to see the After Photo


New Rockwell egress window and well in Ellicott City. 

Work Requests From Ellicott City, MD
Project Location: Ellicott City, MD
I have two small, high windows in the basement and would like have bigger windows with RockWell egresses. Thanks, Asher
Project Location: Ellicott City, MD
Need to replace 2 basement windows
Project Location: Ellicott City, MD
Water sometimes comes into the basement when it rains.
Project Location: Ellicott City, MD
Add sunk pump to basement
Project Location: Ellicott City, MD
Finish basement including floor, walls, ceiling. Add 1/2 bath
Project Location: Ellicott City, MD
Want to build a egress window to transform my basement into a livable area.
Project Location: Ellicott City, MD
We have water leaking though our basement window well windows during rain events and are looking for a solution that would seal the windows and drain water away from our home. Thank you!
Project Location: Ellicott City, MD
Water is creeping up in my basement from a specific corner.
Project Location: Ellicott City, MD
Radon issue
Project Location: Ellicott City, MD
Replace existing basement window with egress window
Project Location: Ellicott City, MD
When it rains heavily, like today, the walkway from my driveway to my doorway floods, the garage gets water in the center of the floor, water seeps into the basement through what might be the floor or the wall behind a closet, i see it coming in under the closet. Also, the area outside a basement door pools with water. We have a sump pump. We have a back up battery but I'm not sure they are working.
Project Location: Ellicott City, MD
Request quote for 1 regress window
Project Location: Ellicott City, MD
Need a egress window in the basement
Project Location: Ellicott City, MD
Water leaking through basement wall crack
Project Location: Ellicott City, MD
Project Location: Ellicott City, MD
Need a new sump pump with redundancy, alarm, and battery backup.
Project Location: Ellicott City, MD
Needing estimate on either a window well cover or a completed window well replacement with cover
Project Location: Ellicott City, MD
I want an estimate for radon mitigation system
Project Location: Ellicott City, MD
Have some water inside basement against one exterior wall, enough to puddle during recent heavy rain. Until recently has not been a problem that we know of.
Project Location: Ellicott City, MD
Approximately 2500 sq. ft. basement to finish including wet bar area and bathroom.

our service area