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Small puddles of water, damp and musty air or moist wall surfaces in your basement are signs that this space in your home is facing water leakage issues. Now, what starts as a minor wet spot can often progress to create bigger problems in the long run. However, with the implementation of some smart basement waterproofing solutions, you can prevent as well as solve all kinds of wet basement problems, like leaks, humidity mold, and musty smells. But, before introducing you to the common basement waterproofing methods, let us try to answer some of the common questions posted by our customers.

Read More: Helpful Tips for Your Basement Renovation

How Much Does it Cost to Waterproof a Basement?

Just like calculating the costs of any home renovation project, estimating the expenses involved in basement waterproofing also involves several factors. It depends mainly on the extent of the project. Waterproofing contractors can charge around $4000 to seal a basement or foundation walls. Small repairs may start from as low as $600. If you go for an extensive revamp, such as tackling the foundation of the home or installing a French drain or new gutters, your cost may go up to $10,000 or more.

waterproofing basementPhoto by Decorative Concrete Kingdom on Flickr – theconcreteprotector.com is licensed under cc by 2.0

Does Waterproofing a Basement Work?

Of course! Basement waterproofing ensures that leakage water is directed outwards to a sump pump. A complete exterior waterproofing project — which involves excavating the bottom of your foundation, adding a foolproof drainage system, and protecting your exterior walls with waterproofing coatings — shall prevent any kind of structural damage from moisture.

Are you budgeting for your basement waterproofing project? We can help you! Explore among our easy and secured loan options for your remodel.

Can You Seal a Basement from the Inside?

It is not necessary that you always need to opt only for a comprehensive exterior waterproofing project. If the leakage is due to damp soil surrounding your house, simply waterproofing your interior walls is sufficient. Therefore, the first step is to locate the source of leakage so that you don’t overspend when you seek to keep your basement dry. And this is what we shall try to address in the following sections.

What Are the Essential Steps for Basement Waterproofing?

basement waterproofing costPhoto by Decorative Concrete Kingdom on Flickr – theconcreteprotector.com is licensed under cc by 2.0

Check Your Surrounding Soil & Drainage System

Poorly constructed drains and soil that retains water can lead to the build-up of moisture in your basement. This accumulated water then seeps into your home via the foundation.

Check Your Gutters

Strange as it may sound, sometimes most of the bottom problems begin at the top. Therefore, have a look at your gutters and note if they are functioning properly and directing rainwater away from your foundation. If not, water will again make its way into your house.

Check the Slope

See if your ground angle points away from the house in a downward direction. If it is the opposite, moisture will become stagnant around your foundation.

Note the Hydrostatic Pressure

basement water seepagePhoto by Decorative Concrete Kingdom on Flickr – theconcreteprotector.com is licensed under cc by 2.0

The hydrostatic pressure of water causes moisture to force itself through cracks on the basement walls and floors. Sometimes, this pressure is so great that it can result in the appearance of new cracks.

Look Out for Cracks in Your Basement:

Obviously, this is the most common reason for moisture accumulation. Cracks on the walls, windows, ceiling, and floor easily offer a perfect entry point for water, resulting in a wet basement.

Now that you know the basic causes behind moisture accumulation in the basement and the various sources for water seepage, let’s guide you through the best basement waterproofing methods.

Read more: Top Things To Do To Weatherproof Your Home

What Are the Best Basement Waterproofing Methods?

basement waterproofing methodsPhoto by Decorative Concrete Kingdom on Flickr – theconcreteprotector.com is licensed under cc by 2.0

Interior Waterproofing

Interior waterproofing methods are the most simple and cost-efficient. They are employed to fix cracks or water-entry points on the inside surface via sealants or coatings — after locating the source of moisture seepage.

Exterior Waterproofing

Exterior methods are much more comprehensive and costly as they tackle the root of the problem. You should always take the help of experienced professionals when embarking on this category of projects. The steps involved here include excavation of the surrounding soil using heavy tools and machinery. After this, workers apply a waterproof sealant on the external surface of the walls.

Another step can be to re-install your gutters if they are clogged and filled with debris. Usually, homeowners undertake this category of waterproofing technique during the construction or renovation phase.

Fixing the Drainage

If you have a drainage system that is not functioning efficiently, it is better to replace it. When the issue is minor, simple repair shall suffice. However, if the issue is major, you might require to overhaul the entire drainage network and install a new drainage system.


Basement waterproofing methods may differ from house to house as the situations for every home are different. Moreover, if you ignore the problem, it might progress to cost you heavily in the long run. Therefore, our recommendation is to not delay and search for a solution immediately. However, the best solution is to waterproof your home at the beginning itself. After all, prevention is always better than cure!

Read more: What You Need To Know Before Buying A Home With Water Damage

Basement Waterproofing: Steps for a Dry, Moisture-free Home was last modified: September 22nd, 2021 by Anisha Dutta

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