How To Fix A Leaky Basement Wall From The Inside: Learn To Repair Cracked Surface

A leaky basement can be really troublesome if left unchecked. Water damage due to simple leakage can gradually lead to mold or other serious fungi issues. This is why it is mandatory to learn how to fix a leaky basement wall. Even if you have a top notch clean basement, preparing for the future will always come in handy.

You can fix a leaking basement both from the outside and inside. When fixing from the outside, it will cost you much more. This is because taking care of the wall outside may require excavating some parts of your foundation.

Today, we will cover how to fix a leaky basement wall from the inside.

How To Fix A Leaky Basement Wall From The Inside

Fix A Leaky Basement

Fixing your leaky basement is a periodic job every 3 to 5 years. It doesn’t matter how many times you refurbish them, and wet basements will be back. There will always be basement wall crack, damped wall, or water leakage after a certain time.

Fortunately, fixing a basement wall leak from the inside doesn’t cost more than renovating it from the outside. And it is always wise to keep an overall idea on this issue in advance. Here are some simple steps on how you can fix a wet basement wall from the inside.

Find The Source Of The Leak

First, you have to discover where the source of the leakage is. There can be two possible reasons why your basement is leaky.

1) Humidity from inside.
2) Outdoor water vapor.

Indoor humidity entirely depends on the internal environment of your home. Wet surfaces are a common cause for raising indoor humidity.

Whereas, water vapor from outside can be caused by any natural phenomenon such as rain or snowfall. In any case, water will be soaked from the foundation soil near your basement. And in order to complete the water cycle, it will enter into your concrete wall in a vaporized form.

If you notice mold, color change or pests beginning to flock around specific parts of your basement wall, it is high time to take the aluminum foil test.

To carry out the test, you have to place aluminum foil on your basement wall. If you notice moisture in front of the foil, you are facing high indoor humidity. And moisture on the backside of the foil means it is an outdoor vapor that’s causing the water leakage.

Repair Crack With Caulk Or Concrete

Usually, most of the leakage in your basement wall is average and can be easily handled with simple caulk or by filling them with hydraulic concrete. To use hydraulic cement or caulk, you need to clean the affected area first.

In the case of hydraulic concrete, you need to expand the affected part. Make a V shape area cut. And also, remove all the debris around and from the internal part of the excavation. Then apply hydraulic concrete there following proper instructions. It is a very durable and long-lasting method.

Seal Interior Walls

However, if the leakage in your basement is beyond repair, it can no longer be fixed with caulk and concrete only. And it will require professional help.

Masonry sealants like Stormdry or Clear Seal are specially made to block leaky porous walls and reduce humidity from your basement. They can also decrease water vapors.

However, you have to be certain that your basement wall is without paints before applying masonry sealant. You need to apply it thickly over the basement wall and let it dry overnight. Then again, apply another layer of masonry sealant to ensure no pores in the concrete wall are left due.

With professional help, it can cost you a total of around $200-$250.

What Is The Best Sealant For Leaky Walls?

When using a waterproof sealant in interior basement walls, it is wise to aim for premium quality and high potential sealants. Even if it cuts a few bucks extra from you, they will offer the most reliable and durable protection to your basement for a long time. And a good sealant will also provide an ultimate shield against high moisture in your basement.

Based on the thousands of positive reviews from users all over the world, the ideal choice would be Liquid Rubber Concrete Foundation Wall and Basement Sealant.

We enlisted Liquid Rubber Foundation Sealant as one of the best answers to your wet basement crack is it is easily adaptable to concrete, metal or woods, even for your shower pipes. It has a high-quality adhesive property that ensures a strong surface adherence to almost any ground.

This sealant is easy to use and has over 900% elongation in its waterproofing membrane resulting in zero failure in every sealing project. It causes no odor or hard feeling in breathing. And what’s more, is, it is entirely an environment-safe sealant. It doesn’t bear any toxic chemicals or VOCs and is entirely safe for humans and other animals.

Once the can is opened, you can always use the leftover sealant later.

How To Stop Water From Seeping Through Basement Walls

You can stop water from seeping through your basement walls in various ways. But some of the most effective ways are mentioned here.

Sump Pump

You can install a sump pump to transport water away from your basement floor and walls. Sump pumps work better with a subfloor pressure relief system. They both will cost you not more than $1500 in total.

French Drains/ Weeping Tile

French drain tile can be installed on both the exterior and interior of your basement. They collect water before it reaches your basement wall and channel them somewhere else.

Installing a french drainage system releases the hydrostatic pressure inside your basement wall to a large amount. And this is considered one of the most effective ways to reduce water damage besides the installation of a sump pump.

Other methods also include vapor barriers, epoxy injection, and dehumidifiers. Epoxy injection and dehumidifiers are two immediate remedies and need to be implemented again in the near future.

Reasons for Water Seeping

There are several reasons behind water seeping. Old houses or foundations that are several decades old will gradually start to show symptoms of water damage. However, there are other possible reasons also. Here are some relevant causes of water seeping other than having an old house:

Gardening Slope

An outdoor garden attached to your foundation can be really refreshing and enjoyable. However, if your garden slopes directly lead to your foundation, additional garden water will gradually find its way to your basement. And result in sloppy and damp walls.

Leaks in Washroom

Research says, around 25-35% of households face leakage issues in their washroom or toilet. Some of them may go unnoticed if it involves the seal beneath your toilet seat or bathtub or if they are internally located. And these leakages will slowly release pressure on your sewer system that is located in the basement. All these issues will finally grow a large damp area in your basement and degrade its environment.

Water Pressure

Your internal foundation structure is meant to withstand 80 psi of water pressure at most. This limit can cross if your home is located near large hills or tall buildings. In this case, you should talk to your plumber about how you can bring modifications to withstand a large amount of water pressure.

Corrosive Pipeline

Corrosive pipes are one of the invincible phenomena. It doesn’t matter how careful or premium the pipeline you insert. You have to face these issues at one phase.

You can, at most, maintain the pH level of your household water to delay the rate of corrosion. Pipelines are affected due to the acidic nature of your household water. Usually, the pH level of the residential water supply should remain between 6.5 to 8.5. If the limit surpasses, the corrosion rate will fasten in your pipeline.

Solution For Stopping Water Seeping

Water seeping is a very common issue in regular households. However, you can check some factors to prevent frequent seeping of water. They are:

1. Proper Maintenance of Sump Pump

Proper regulation and monitoring of your sump pump will maintain a smooth and jot-free water flow throughout your flooded basement. Hence, it is important to keep your sump pump under regular monitoring.

2. Keep Your Gutters Clean

Gutter systems throughout your home should be kept clean on a regular basis. You have to monitor if the interior channel of the gutter is dirty or if there is anything stuck that can be the reason for water seeping in the near future.

3. Installation of Smart Water Leak Detectors

We are privileged as we live in the era of technology. Nowadays, cellular based water leak detectors are available near us. They are quite cheap on budget and really easy to use. The system alerts you using a global hub when there is any leakage in your home.

4. Keep Rainflush Away

Frequent rainwater can damage your basement walls. It is wise to keep surplus rainwater away from your foundation. You can do so by inserting a downspout extension or by adding a false roof over your windows.

How Much Does It Cost To Fix A Leaky Basement?

Have a look at basement waterproofing costs details to get a thorough idea about detailed costing. However, on average, it can cost you between $2000 to $7000 for a total makeover of a poor basement wall.

Does Insurance Cover A Leaky Basement?

In most cases, a basement leak is likely to be considered a maintenance issue and will not cover any insurance policy.

Final Words

Having a wet leaky basement can gradually deteriorate the healthy environment of your home. This is why it is wise to know how to fix a leaky basement wall from the inside. Information shared here will always come in handy for your precious home.

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