Original company and team still honoring 1st warranty delivered in 1987.
Fix your basement forever with a meaningful promise of performance.
Our customer reviews have established a 99.3% satisfaction rate with over 55,000 waterproofing customers.
No company delivers more for their customers than BWN. Price is what you pay. Value is what you get.
Fixed right for life! Never more than you need, giving you confidence your basement is permanently protected.
We recruit, hire, and train all crew members with BWN core values. No subcontractors!
Flexible payment plans that fit your budget and lifestyle.
Homeowners can rely on BWN to be there when they need us the most.
"If you need anything regarding waterproofing in your home these guys are truly a blessing. I was 1st told 16k by a company who used scare tactics for sales. I cried for 2 weeks. God sent Basement Waterproofing. Professional, courteous, punctual, knowledgeable and honest! They gave me an education on attached row homes and explained things simply. Once I signed they were in constant communication with me. They even responded the next day when I called with concerns and addressed them right then. Their workers were quiet, professional, and courteous as well. I even got a life time transferable warranty on my house for their work. I highly recommend Basement Waterproofing as integrity is something that you can't buy, borrow or imitate. You either have it or you don't. Trust me, they have it. Ask for Mike or Joe. Both are grounded in Gods word and ready to share it with you too. Definitely would use again and recommend."
"I wish more companies around here were as good as BWN. Appreciated every aspect of their service. They came quickly to look at the job, and adjusted the schedule to fit our needs. Crew was friendly and very professional. Job turned out way better than I had hoped."
"We have been customers of BWN Waterproofing since our basement flooded more than 10 years ago. We had an issue recently with water entering our laundry room. They responded immediately and scheduled us for service, as part of our warranty. We love that this company stands behind the work they do. Thank you!"
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Our highly trained office staff are always ready and willing to help you.
Our no pressure, friendly inspectors will ensure your consultative basement inspection is a helpful experience.
Getting your basement dry is easy with BWN!
Our pleasant office staff are always ready and willing to help you.
Every member of the BWN Super Crew must pass our Core Values Assessment.
The same BWN staff that waterproofed basements for our customers back in 1987 remain on staff today. We stand proudly with all our customers as time has reinforced the promise of our legitimate Lifetime Warranty. View our service areas.
Maryland: Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Cecil County, Frederick County, Harford County, Howard County, Montgomery County, Prince Georges County.
Delaware: Kent County, New Castle County.
Pennsylvania: York County, Lancaster County, Chester County, Delaware County.
Washington, D.C.: Northeast Washington, Northwest Washington.
Since 1987 BWN’s time tested solutions have demonstrated reliable basement protection during extreme weather events. Basement waterproofing, foundation repair, crawl space repair and sump pump replacements are BWN specialties.
Proven waterproofing solutions that are specifically designed to permanently protect your basement for life.
Cracked or compromised foundation walls can be structurally repaired to restore your peace of mind.
Damp, wet crawl spaces can be transformed into dry spaces that also protect the living spaces above.
Healthy sump pumps are critical for protecting your basement against water, this is why sump pumps are referred to as the heart of your waterproofing system.
Here you will find helpful guidance with both DIY and Professional advice regarding the maintenance and repair of your basement. Use our resource center to learn more about basement waterproofing, foundation repair, crawl spaces and sump pumps.