Anchor Waterproofing
“Recently we had a water issue in another area and were again very pleased with the guidance, work performed by Dave Schifflett, and the price for the work.”
Best Basement Waterproofing Contractors in Baltimore, MD
15 contractors listed · 8 in Baltimore · 3 open 24/7 · 10 open weekends · 12 rated 4.5+
Data verified October 18, 2026
Jones Asphalt
“Nick was great communicating each step of the process while work was being done, and the job was performed very quickly -- total time was estimated at 2 full days but they only took a day and a half.”
Floodbusters Basements
“After Flood Busters installed their system, very promptly and efficiently, the basement has been bone dry, inspite of the heavy rains we have had all across Harford County during the past year.”
Bltmr Restoration Company
“Contacted them for a short mold remediation job was actually impressed by there professionalism which was a first for me.”
Global Risin Contracting Services Inc
“I had a plumbing issue in the basement and Jacob offered a very reasonable estimate while being very transparent about any possible changes.”
M & N Professional Concrete Contractors Inc
“You will be satisfied if you pick M &N Professional concrete.”
The 15 contractors listed for Baltimore, MD work on wet basements, foundations and crawl spaces. Warranty claims, free inspection offers and hours come from each company's own website. Diagnoses in this trade vary widely, so read more than one before committing to a system.
Area overview: Baltimore, MD
8 of the 15 contractors we list are based in Baltimore; the other 7 serve Baltimore from towns including Linthicum Heights (6 mi), Owings Mills (4 mi) and Rosedale (6 mi). The contractors on this page are rated from 4.0 to 5.0 across 873 reviews; 7 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (93%), quality (83%) and responsiveness (80%). The topics that come up most in reviews of the contractors on this page are "estimates", "price" and "cleanliness". 3 are open around the clock; 10 are open on Saturdays and 3 on Sundays. 6 show a license on their websites; 1 lists staff certifications (EPA) and 3 have a BBB rating of A or A+. Domain records put 8 websites of the contractors on this page at ten or more years old; the oldest dates from 2001. 3 offer emergency call-outs; 3 offer financing or payment plans; 12 give free estimates; 5 are family- or locally-owned and 1 lists coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
How many opinions should I get for a damp problem?
There are 15 listings for Baltimore. Get more than one assessment before you commit, because diagnoses in this trade differ more than prices do, and one crew's interior system is another crew's regrading job. Compare what each says is causing the water, not just the total at the bottom of the page.
Basement Waterproofing Technologies
“He looks out for my clients best interest and never tries to sell them something they do not need.”
Prepcon Inc
Budget Waterproofing
“Bill came out and walked us through everything that they would do, and provided a reasonable price for the service they offered.”
Eco Pro Restoration
“Jerry was terrific, came out accessed the damage, made a recommendation and didn't charge a thing.”
AA Action Waterproofing
“The representative, Rob, spent a long time with us patiently explaining the problem, and offering a solution that was much simpler and far less expensive than what we expected.”
Detailz Construction Corporation
“We had our brickwork repointed and our backyard cemented to deal with water leakage and are very pleased with the results.”
GMP Construction LLC
“Im so impresed i love me New roof anf gutters i highly recommended GMP anf their stuff are amazing.”
MJ Home Services LLC
“He seen that we had a small budget so instead of him trying to up sell and sell us on all this different stuff he told my husband how to do it.”
Orellana Construction LLC
“They were always on time, detail-oriented, and Jose was always available to answer questions.”
Why these companies made our list
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