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Products & Services
Mold Services
Mold Remediation & Abatement
Mold Inspections
Mold Testing & Detection
Dust Mites Control
Mold Spores
Mold Removal And Cleanup
Dry Rot & Brown Rot
Black Mold Removal
Basement Mold Removal
Fiberlock Shockwave Disinfectant & Sanitizer
Fiberlock IAQ 6000 Mold Encapsulant
Sporicidin Disinfectant Solution
Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Bowing Wall Structural Repair
Basement To Beautiful Pre-finishing Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Dehumidifier
Sump Pump Installation, Repair & Replacement
Basement Insulation
Basement Egress Windows
Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapor Barriers And Liners
Turtl Access Hatch
EverLast Crawl Space Doors
Sanidry Csb Dehumidifier
Crawl Space Structural Repair
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-o-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents
Finishing / Remodeling
Everlast Wall Panels
Insulated Wall Panels
Premier And Linen Ceiling Tiles: No-sag Warranty
Thermal Dry Floor Tiles
Millcreek Faux Wood Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Basement Egress Windows
Before and After Pictures from Wilmington
New TripleSafe Sump System installed in Wilmington, DE

New TripleSafe Sump System installed in Wilmington, DE

Before After
New TripleSafe Sump System installed in Wilmington, DE New TripleSafe Sump System installed in Wilmington, DE

This customer only needed one walls waterproofed.  So we installed 20' of WaterGuard to make sure she would not leak there again.  But she did not want to take any chances with the sump pump.   We installed a TripleSafe Sump System with battery back-up.   If the first primary pump fails due to power failure or mechanical pump failure, there are two back up pumps that can take over.  One of those back-up pumps is the UltraSump Battery Back-up system that is capable of pumping up to 2000 gallon per hour when on battery power.  It can also last for days before running out of power. 


Basement Finishing in Wilmington, DE

Basement Finishing in Wilmington, DE

Before After
Basement Finishing in Wilmington, DE Basement Finishing in Wilmington, DE

We could a completely unfinished basement and transformed into a beautiful, dry, finished space. 

TripleSafe Sump System Installation in Wilmington, MD Basement

TripleSafe Sump System Installation in Wilmington, MD Basement

Before After
TripleSafe Sump System Installation in Wilmington, MD Basement TripleSafe Sump System Installation in Wilmington, MD Basement

Here we have the installation of a top of the line TripleSafe Sump system.  This capable of pumping over 6000 gallon per hour and also operate on battery back up in case of power failure. 

Company Awards
Basement Systems USA has been awarded a TOP TEN contractor in MD and DE by The Prime Business Report.... [Read more]
Recieved Home Advisors Elite Contractor Award... [Read more]
For achieving and maintaining a superior service rating on Angie's List throughout 2015 as determined by Angie's List members.... [Read more]
More Awards

Crawl Space, Basement, & Mold Remediation Contractor in Wilmington, DE 19801, 19803, 19806

It is with great pleasure that I report our basement problems are over!......
Happy Customers Surrounding Wilmington, DE
Work Requests

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Reviews From Wilmington
Testimonials From Wilmington
...We have had several good rain storms since the job was done and I have not seen one drop of water...
Testimonial by Bob, B. from Baltimore, MD
...All work was performed in a neat and professional workman-like manner and to this date we have had no leaks.
Testimonial by William -. from Baltimore, MD
I just wanted to say we were very pleased with Tony'€™s work on our crawl space...
Testimonial by Miriam D. from Towson, MD

Wilmington's Basement Waterproofing Contractor

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

Basement Waterproofing & Crawl Space Repair in Wilmington

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 Wilmington waterproofing systems come with life-time warranties. 

Basement Finishing & Remodeling in Wilmington, DE

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 Wilmington 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.

Wilmington 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


Job Stories From Wilmington, DE
Mold and Joist Rotting in Crawlspace in Wilmington, DE

There were several problems with this complicated, multi level, home in Wilmington, DE.

First, the deck boards on the front of the home were painted closed and no longer allowed water to drain in between them.  As a result, the customer would have several inches of rain build up on the deck, which then leaked into the home and caused the lower level drop ceiling to get damaged.  To solve this issue, we had to rip up the old deck boards and replace them with new, pressure treated boards with spaces in between each board so that the water could properly drain.  Problem solved.  

There was also a problem with sub-flooring in the basement.  There was no vapout barrier on the dirt floor below the plywood.  This caused a constant moisture problem which resulted in the floor and joist rotting.  We ripped out the old floor and the joist and installed a drainage system along with the CleanSpace Vapor barrier so that the space would be dry.  No more high mosture levels under the floor.   Then we reinstalled the joist and the floor decking. 

There was also an adjacent crawlspace with mold all over the joists due to high levels of moisture.  The primary reason for the mold was that the existing vapor barrier was only 6-mill poly plastic, which could not keep the moisture from the ground from leaking into the crawlspace and causing high humidity levels.  We did a full mold remediation job on the whole CralwSpace.  A new SmartSump was installed to make sure we could control water seepage under the vapor barrier.  We installed the CleanSpace Vapor Barrier  to make sure that the ground was properly sealed off.  We also installed the SaniDry Sedona dehumidifer to make sure that the remaining air in the crawlspace would always stay dry.  We spray foamed the ban-board/sil-plate area and some above ground framed walls to keep the cold air out.  We also replaced the old, leaky, crawlspace door with the airtight EverLast door to keep the humid and cold air out.  

To finish it off, we repaired the water damaged drop ceiling on the first floor. This job tool about 7 days and came out beautifully.  Most importantly, all the customer problems of mold, rot, high humidity, water seepage and bad insulation have been resolved.   






Crawlspace Encapsulation in Wilmington, DE

This little crawlspace was moldy, damp, and cold.  The problem was that it was vented to the outside which lets cold and wet air into the crawlspace. It also had fiberglass insulation in the ceiling, which is the worst product to install in damp areas. Fiberglass  is organic and will suck the moisture out of the air and then grow mold. The floor was also missing a vapor barrier. This means moisture from the ground can evaporate into the crawlspace. We had the solution; we closed the vent and removed the fiberglass insulation in the ceiling. Then we insulated the perimeter walls with SilverGlow foam board. We also installed Drainage matting and the CleanSpace vapor barrier over the floor. The crawlspace is now t clean, dry, mold and odor free.  

Wet Basement Turned Into Dry Usable Living Space in Wilmington, DE

This basement was very wet and damp and looked like an un-usable dungeon.  It would be a bad idea to use traditional basement finishing matrials like drywall in this basement because you would have mol din no time.  

We first made sure that the basement was waterpoofed with our Wateguard waterpoofing system.  The we used in-organic materials to finish the basement.  TBF everlast walls not only look beautifull, they also com ewith a 50-year guarantee against water or mold damge.  The flooring is also waterpoof and even the ceiling tiles are made of an inorganic material and come with a30 year guarantee.  The space was small but it turned out great.  Can you imagine the difference in home value this job made?


Crawlspace Encapsulation in Wilmington, DE

To ensure his crawlspace stays comfortable and dry, a homeowner called us for help. We got right to work, first ridding it of mold and the current insulation. We then insulated the crawlspace with our quality SilverGlo and Terra Block products. We also installed Cleanspace which will direct any unwanted water seepage and send it to the drainage system. These products keep the crawlspace dry while also improving energy use and comfort. The homeowner is pleased with the new insulation in his crawlspace and thinks of it as new.

Waterproofing a Leaking Basement in Wilmington, DE

This customer’s leaking basement was a big problem. We installed our SuperSump sump pump for him which will pump up to 2280 gallons an hour while preventing further water leakage or other outside elements. Our TrenchDrain and WaterGuard systems will capture water seepage and take it to the sump pump so that the basement stays dry even in heavy weather conditions. The ZenWall basement paneling system also provides walls that are a moisture barrier, capture water seepage and improve energy efficiency in the basement. Thanks to our team, our customer will enjoy his basement.

Crawlspace Project in Wilmington, DE

When a homeowner was experiencing crawlspace flooding, we came to the rescue. We were able to install our quality SmartPipe crawlspace drainage system along with some of our other dependable products to prevent crawlspace flooding. The homeowner now uses the SmartSump system that will alert him of any problems it's experiencing as well as the Cleanspace vapor barrier that prevents moisture and outside elements from entering his crawlspace. The homeowner also chose to have us install a new SaniDry dehumidifier as well as our IceGuard discharge system which will ensure his crawlspace stays dry in the winter months. By installing all of these products, we were able to prepare this customer for any situation, protecting his crawlspace from mold, flooding and other outside factors.

Work Requests From Wilmington, DE
Skyline Dr in Wilmington
Quote for basement finishing.
Elizabeth Avenue in Wilmington
We are selling our home and inspection revealed possible mold in the crawl space and also requesting a vapor barrier be installed in the crawl space. Would like an estimate.
RavenRd in Wilmington
We bought our home in July. This is our first winter and we are quickly seeing some issues. We have a crawl space directly below our main living area. It's making the room above very cold and our gas bill sky high.
Troy Ave in Wilmington
I have green spots on my ceiling in my garage.
Majestic Drive in Wilmington
Egress window well replaced with the Rockwell product. Egress window does not need replacing just the well.
in Wilmington
Basement has moisture and wall issues
Woodward Dr in Wilmington
On one side of my basement foundation wall - crawl space area - a piece of the interior cinder block (at the very top) seems to have broken off (it's ok on the exterior side of the block) from some leakage near the chimney foundation. Would like to get an idea of what needs to be done to fix and possibly some additional options as to correcting leakage on that wall. Main concern is fix of the block at the moment.
in Wilmington
We would like to install an egress window and finish our basement.
Doral Dr in Wilmington
Front wood deck puddles against house. water has drenched the flashing and caused the basement ceiling to collapse.
Carillon Drive in Wilmington
Wet basement floor under rug and padding.
Lakeview Dr in Wilmington
Need a reliable dehumidifier with either built in or attached pump for a crawl space
Bell Hill Road in Wilmington
We bought a 97 year old home with a crawl space. We need a dehumidifier in the crawl space to deal with moisture.
Bell Hill Road in Wilmington
We bought a 97 year old home with a crawl space. We need a dehumidifier in the crawl space to deal with moisture.
Marsh Rd in Wilmington
Water comes thru block in basement
N. Clayton Street in Wilmington
Basement east wall is damp
Conrad Street in Wilmington
Wet basement when it rains
in Wilmington
I'm looking to buy a home but it has water and humidity problems.
Connell St in Wilmington
In my dinning room I have a cobby area there is mold growing not kownig where it is coming from.?
Clubhouse Lane in Wilmington
I want an extra room and a bathroom in my basement.
N Harrison St in Wilmington
Mold growing up living room wall, prob from basement up.
Serving the following Wilmington, DE zip codes
19801, 19802, 19803, 19804, 19805, 19806, 19807, 19808, 19809, 19810, 19850, 19880, 19884, 19885, 19886, 19890, 19891, 19892, 19893, 19894, 19895, 19896, 19897, 19898, 19899

our service area