Basement Waterproofing Maryland

Do you have a lot of questions about your wet basement? We got the answers for you, lots of answers!                                              


Since 1987, BWN has been in the business of making damp and wet basements dry without the costly excavations.  BWN is a licensed and an insured, locally and nationally recognized basement waterproofer.  We are the first basement waterproofing company to be awarded the Better Business Bureau’s “Torch Award” for outstanding ethics in the marketplace. BWN is the only waterproofer to win that award twice.


When it comes to trust you have come to the right place. We are a family-owned and run local business.  We are not a franchise nor are we an exclusive dealer of anyone’s product. As such, BWN will introduce you and your basement to the entire array of products and services available on the market today. That way we can solve your wet basement problem with the right method at a price that’s right for you.



We market, sell, and install; employing over 56 different methods and/or materials every day with our own employees and never subcontract that work to another.  That means you can expect to receive what you were promised. It has been our experience that a firm dedicated to the discipline of basement waterproofing has the best results.


What our customers say about us…

“You and your company come highly recommended in our book. We liked the way you sat down and explained what your company would do, how and why it would be done and what it would cost. We have not had any water in the basement, even with much heavy rain recently.”

– John and Jane M. Baltimore , MD


“After years of living with basement problems ranging from wet walls, water seeping up through the floor, as much as two feet of water in the basement, and two sump pumps running continually for 2 1/2 months… it is hard to believe that we now have a usable, dry basement. What a pleasure!!”

– John & Nancy M. Bridgeville , DE


“Of all of the improvements I have made on my home since 1947, the best was getting my basement waterproofed by BWN in 1997. Prior to their work I had water flowing over the basement floor and squirting from the cement block walls. Since the BWN waterproofing I haven’t had a drop of water come into the basement.”

– W. W. Wilmington , DE



Basement Waterproofing Nationwide, Inc

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