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Waterproofing the Basement Walls

Basements can be damp, wet, and gross. And if you live in a flood zone, they can get even worse. Basements aren't naturally waterproof, though…

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May 13, 2026
Waterproofing the Basement Walls

Waterproofing the Basement Walls

Basements can be damp, wet, and gross. And if you live in a flood zone, they can get even worse. Basements aren't naturally waterproof, though — this is often done with a product that makes the basement walls waterproof and water resistant. But as it turns out, there are various reasons why a basement requires this additional layer of protection. Focusing on protection and prevention will reduce the potential need for water damage restoration. Tidal Wave Response has these tips to waterproof the basement walls.

Causes of Wet Basements

Waterproofing the basement walls is a good way to seal up any holes or cracks that may let water into your house. Waterproofing basement walls also help to keep moisture levels down and prevent mold growth.

Waterproof basement walls can reduce the risk of flooding and other problems caused by water intrusion. Several factors can contribute to wet basements.

Cracks

Cracks in concrete walls or floors allow water to seep through the wall and gather at the bottom of your home. This is particularly common in older homes that have not been maintained properly over the years.

Unsecured Entry Points

There may be doors or windows that do not close properly or have gaps where rainwater can enter the home. This will cause water damage due to leaks from above or from below when it rains heavily outside. Your home may also be built on a slope so that water flows down towards your home from above, causing flooding.

Inadequate Drainage

If there are cracks or other openings in your basement walls, water will flow into these holes instead of draining away properly, leaving behind dampness on the walls.

Poor Drainage System

This applies mostly to newer homes but can also happen with older ones if they do not have proper drainage systems installed when they were built or if they fail due to age or wear and tear over time.

Reviews

Alex Membrillo

Milton, GA

John came out within 2 hours of our call for help. Within 4 hours of him coming out his team was hear ripping up our basement and saving it from mold. I owe them 40k because that's what it would have cost if they didn't help as quick as they did. Will tell all 3 of my friends about them.  Rob also great and so was the team, so professional, so quick.

Tim Harwood

Buckhead, GA

I had some water damage above my garage after a plumbing incident and was very upset about it. Thankfully Justin and his team at tidal wave made the experience easy and much less of a headache. His team took out the damaged drywall did a full restoration and cleaned up after themselves. Made my damaged ceiling look brand new.

Elaine Tapp

Roswell, GA

We thought Tidal Wave did great work with our water damage remediation and repair. Everyone who showed up was professional and skillful. We had some challenges with scheduling communications and delays but everyone was generally responsive and helpful. We appreciated that they were a one stop shop that could handle everything for us. We would definitely recommend Tidal Wave to others.

DMP

Atlanta, GA

Tidal Wave is one of a kind! I had a pipe that burst and they responded the same day! The team lead, Chris, was extremely professional and courteous. He assured me that I would be taken care of and I was totally impressed with their swift response time. The owner, Johnny, called and told me he was sorry I had experienced water damage in my home and also assured me that everything would be fine. The project manager, Justin, was also extremely kind and provided me with beautiful replacement floor samples. Once my floors are finished, I’m going to submit…

Lisa S.

Cumming, GA

Talk about a company that lives up to it`s name! Called them in the morning within an hour Rob a very professional representative showed up at the house and helped me file a claim. Twenty minutes later a crew showed up and began demo. A few hours later Tidal Wave Response had figured out the leak was gone. Everything happened so fast and efficiently. They helped us understand what our insurance covered and guaranteed the demo would be covered by insurance or them. We are so happy to be working with this company and highly recommend them.

Logan F.

Decatur, GA

What a great company! I called to ask questions and within minutes I was scheduling someone to come to my home and save me from my water damage. Very responsive and the demo crew was amazing and professional!! The repairs to my Kitchen are about to start and I cant wait to see the end result! Thank you Tidal Wave!!

Webb W.

Atlanta, GA

Very, very professional from start to finish. Crew came into my home removed all of the damage items that was damaged by a water leak from the upper level of the home. Worked very fast and cleaned up behind themselves as if they were never there. It was like watch a action movie. Setup the dryers and other equipment very fast also and organized our furniture so that we could get to things as needed. Tidal Wave made a very bad situation feel okay, I`m thankful that we chose you guys. Again thanks for being so professional and responsive

Jennifer G.

Marietta, GA

I could not have been more pleased with my experience with Tidal Wave! Their response time was impressive and Michael did an excellent job walking me through the process. The entire crew was hard working, fast and courteous. I would 100% recommend Tidal Wave.

Binh D.

Dunwoody, GA

We had a water damage in our home and we Googled water damage restoration. We had 2 companies come out for an inspection and... Honestly we were very pleased with the punctuality & knowledge of Rob at Tidal Wave Response. He was very soft and well spoken and listened to our concerns about our home. Rob showed a very compassionate side of how a service professional treats his customer. Our choice was Tidal Wave Response based on their outstanding reviews and knowledge of insurance claims. Tidal Wave also met with the claims adjuster for our property damage inspection. This was…

Billy H.

Sandy Springs, GA

We highly recommend Tidal Wave Response! Johnny came out late last night to assess a failed water heater that flooded our finished basement. He coordinated with Mr. Rooter Plumbing to have a plumber dispatched at 11:45PM who confirmed the water was shut off and put some emergency repairs in place to ensure no further damage would occur. This morning at 7:10 AM (20 minutes earlier than expected) the Tidal Wave Response team was on site at our house. They assessed the damage, and assisted us in contacting our home owners insurance company to create our insurance claim. They preformed the…

Ty M.

Chamblee, GA

My upstairs bathroom overflowed. The water ran into two of my bedrooms and the hallway. My wife called Tidal Wave and they were at our home in less than an hour. Johnny`s team came out and were very quick and professional. They sucked up the water set equipment and the supervisor explained the process. They even offered to do our repairs and said they would handle it all. My wife and I are very pleased so far. I will make it my business to recommend this company to family and friends. This company is honest, and gets the job done.

Mary L.

Brookhaven, GA

So far GREAT!!! They came right out, took out wet walls, cleaned up perfectly (no dust) set up fans. I’m going to use them to put the walls back up and paint too! They are going to meet with my field insurance agent, too, to make sure everything is covered. Fingers crossed they continue to be great!

How to Waterproof Basement Walls

Waterproofing your basement walls is essential in preventing flood damage to your home. A waterproof basement will help keep your home safe from water damage and structural damage caused by water seeping into the basement walls.

A waterproof basement wall is a great investment for your home, as it can save you thousands of dollars in repairs and prevent costly mold growth.

Remove Standing Water

The first thing you need to do is remove standing water from the basement floor. This may seem simple at first glance, but it can be quite challenging if there is a lot of water in your basement. You may need to hire a professional contractor to help with this task because they have the equipment needed to remove large amounts of water quickly and efficiently. Once all the standing water has been removed from your concrete floor, it’s time to start preparing for waterproofing!

Remove Efflorescence

Efflorescence is mineral deposits that form on concrete surfaces when they come in contact with moisture from groundwater or rainwater. It looks like white powder on your concrete walls and can be removed with muriatic acid or other cleaning products. Removing efflorescence will improve your sealant's adhesion and make applying waterproofing products to your concrete walls easier.

Clean the Basement

The first step in waterproofing your basement is to clean it. You don't need to scrub down every corner, but you want to remove any dirt, grime, or mold hiding in the cracks and crevices of your basement walls.

Clean the walls with mild detergent and water. If you have stubborn stains on your wall, try using a commercial degreaser before moving on to step two.

Reasons to Choose Tidal Wave

We Bill Your Insurance Directly

We Bill Your Insurance Directly

We Accept All Insurance Claims

We Accept All Insurance Claims

Licensed & Certified Technicians

Licensed & Certified Technicians

30 Minutes Response Time

30 Minutes Response Time

Locally & Family Owned

Locally & Family Owned

24/7 Emergency Service

24/7 Emergency Service

Never an Overtime Charge

Never an Overtime Charge

Remove Old Paint

If there's old paint on your basement walls, it needs to come off before you can apply the new waterproofing coating. The best way to do this is with a heat gun or an orbital sander. Heat guns are better for removing thicker coats of paint, while orbital sanders are better for finer coats of paint that may have been applied more recently.

Plug All Holes

After cleaning up the walls and removing all old paint, it's time to plug all holes and cracks in the concrete with cement sealer or caulking compound. This will help prevent moisture from seeping through small openings in your basement walls later down the road when there's already water inside them!

Reseal All Openings

Reseal all the openings in the wall. These include cracks, gaps, and holes around pipes, electrical outlets, and light fixtures. Also, include vents that might let water in or out of your basement.

Apply Waterproof Coating

Once you've sealed all the openings, apply a waterproof coating on the walls' exterior surface. This coating should be thick enough to prevent water from seeping through but thin enough to allow moisture vapor to escape through evaporation. An asphalt-based coating is a good option that comes in several colors and textures depending on what look you want for your basement walls.

Tidal Wave Response

The key is to prevent water from entering your basement in the first place, as this is by far the easiest and most affordable approach. This can be accomplished with rock-solid waterproof basement walls that prevent the water from penetrating your basement. If you already have water damage, the first thing you need is Tidal Wave Response for water damage removal, then restore and prevent any future events.

Our Services

We understand that the aftermath of a flood or fire can be very stressful for you and your family, so we strive to provide our customers with the best service possible.

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