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Your Local, Trustworthy Basement Waterproofing Company

We Promise to Get the Job Done Right the First Time!

A leak in your basement in Baltimore County can give you a sick feeling. You might not know how extensive the damage is or how costly it will be, but you do know you have to get help immediately. That’s when having AA Action Waterproofing on speed dial can give you some peace of mind.

Our basement waterproofing service will solve any problems you have with your basement, even if it’s something as severe as a foundation problem. Our goal is to solve the issue quickly so you can get back to life without worrying about water damage.

Services we offer include:

Basement Waterproofing - We solve all your basement water repair needs.

Mold Remediation - Quick mold removal is essential, and we can get the job done.

Foundation Repair - Get peace of mind with our foundation repair services.

Crawl Space - Let our experts check out your crawl space for you.

Basement Waterproofing

Basement waterproofing

Finally, a Local Basement Waterproofing Company You Can Trust to do the Job Right! Our waterproofing company.

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Mold Remediation

Mold Remediation

What Is Mold Remediation? From mold remediation to mildew clean-up, AA Action Waterproofing has a solution for.

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Foundation Repair

Foundation Repair

Water can be a very destructive element. It flows and finds ways through cracks, causing varying degrees.

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Flooded Crawlspace Baltimore


If your home has a “crawl space”, the meaning is obvious – you can’t stand up. Just.

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Put an End to Your Basement Water Problems!

AA Action Waterproofing has served Northern Virginia, DC, and Maryland for more than 28 years. We are a family-owned and operated business that goes the extra mile on your behalf.

Steps to Successful Basement Leak Repair

Whether you need residential foundation repair, commercial foundation repair, foundation crack repair, foundation wall crack repair, mold removal, mold abatement, or any other services in Baltimore County, we can help.

Simply fill out our online form or give us a call. We can then provide you with a free estimate on-site. When you’re ready to complete the work, we will schedule the best time to solve your basement problems. It’s that simple!

AA Action Waterproofing is RATED 5 STARS!

Based on recent reviews

“Wow great job. We had basement waterproofing and an egress window installed by AA Action. This was a major project for our family but everything went smoothly. I would definitely recommend this company. The estimator was very professional and did site visits while our job was in progress. The crew was polite and did a great job. The company called Miss Utility to have the area marked where outside digging was necessary. Thanks AA Action Waterproofing.”

Howard P.

Rockville, MD

“This was the best call I made. AA Action Waterproofing responded quickly. The inspector was very knowledgeable and answered all our questions. We had the work scheduled and the crew arrived on time and took great measures to keep our home safe and clean during the waterproofing process. Great service from start to finish.”

Elizabeth N.

Woodbridge VA

“We are very pleased with the service AA Action Waterproofing provided. The office staff was very thorough and the installation team took great pride in their work. The Foreman Brian answered all our questions during the job. This company was a pleasure to work with.”

Michael Y.

Baltimore, MD

“I’m a contractor and had a project in Arlington VA. This company did a great job coordinating the job from start to finish. They provided before and after pictures of the jobs progress. Job site was left clean and most importantly dry. We are now refinishing the basement with peace of mind. I will definitely call them for my next project.”

Leo R Contractor

Berwyn Heights, MD