Top-rated waterproofing pros.

Get matched with top waterproofing pros in Baltimore, MD

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Top-Rated Waterproofing pros in Baltimore - Updated Nov 2026

All Aspects Waterproofing, LLC
4.6(
188
)
Inspection - Waterproofing

Serving Baltimore, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"We are the 2nd owners of a 15 year old home. Don't know why the original owner/builder did not put a sump pump in the basement, as it would have been a cheaper option in the end. If you are building a new home with a basement, put a sump pump in, don't scrimp on what is a very valuable insurance policy. After looking at a handful of other companies to retrofit a sump pump in our cellar, we picked All Aspects Waterproofing, LLC. They did a great job! Very high quality work, and outstanding service. They did a great job! We enthusiastically recommend All Aspects Waterproofing to any homeowner!"
Response time1 day
12 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)
Inspection - Waterproofing

Serving Baltimore, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Job was promised to be less than two days. The crew arrived at the time agreed on and was thorough, covered walls not affected by the work and were finished by the end of the morning. I will recommend AA Action to anyone in need to basement waterproofing, crawl space improvements and related items."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Response time9 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Best Buy Waterproofing
Best Buy Waterproofing
4.8(
46
)
Inspection - Waterproofing

Serving Baltimore, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Best Buy Waterproofing waterproof my garage today when I tell you from the moment the crew arrived I had nothing but a great experience from the first enter action with the head crew member on down to his team they explained what there were about to do and preceded to do so. My garage had really bad water damage and when I tell you that you would never know it now. I would like to send a special thanks to the owner of the company for having such a experienced and professional team!! I highly recommend Best Buy Waterproofing."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+81

Response time1 day
Response rate100%
Recommended by97%of homeowners
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
188
)
Inspection - Waterproofing

Serving Baltimore, MD and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"This was a huge job. A complete basement waterproofing - new internal drains installed and two new sump pumps installed. The guys were great - came on time worked hard all day and cleaned up after themselves. The only negative was at the completion of work when it was time to pay the amount was less than what was originally quoted. I told the guy that and he insisted that it was what he had. I even showed him the quote on paper. I paid it - glad it was less, but a few days later got a call from the office telling me I needed to pay another $1600 (the difference between the original quoted price and at the time of service price) I told her what the guy told me and she got a little rude saying "well you knew what the quoted price was" - yeah I DID know and was prepared to pay but after install HER guy insisted it was the price he had. I wasn't trying to get out of paying but the confusion on how much it costs was with the people working there. I didn't appreciate her attitude as if I was trying to skimp out of paying. Nevertheless, I ended up with this additional payment. However, the work is supposed to be guaranteed for life. No complaints there."
Additional Photos
Response time2 days
10 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Guardian Basement Waterproofing
Guardian Basement Waterproofing
4.5(
24
)
Inspection - Waterproofing

Serving Baltimore, MD and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"Joel and his crew did a fantastic job. I really appreciated Joel's professionalism and thoughtfulness when he evaluated the problem and formulated the most effective solution. The work was done in a timely and efficient manner. And the best part it is, that I no longer have water in my basement despite many periods of very heavy rain. I also had Guardian waterproof the basement in my former house with similar positive results. I recommend them to the highest extent!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time1 day
12 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)
Inspection - Waterproofing

Serving Baltimore, MD and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Was so happy with the quick and thorough work of Shawn and Gilbert in my basement. They were fast and took great care for each detail of the job. I have confidence to refinish my basement now! I would highly recommend them and Basement Systems for all your waterproofing needs!"
Show Booth
Tough day
Found it in a crawlspace
What is it?
Found it in a crawlspace

+142

Response time1 day
Recommended by88%of homeowners
...
Showing 1-10 of 128

The Baltimore, MD homeowners’ guide to waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.