Basement Masters | Waterproofing & Foundation Repair Experts

What is Exterior Basement Waterproofing?

Basement waterproofing sounds simple enough but requires extensive knowledge and skill to execute properly. Each home is unique, and as such, requires customized exterior basement waterproofing solutions. What works for one basement might not work for every basement!

Exterior basement waterproofing methods focus on preventing water from entering the basement by applying waterproofing materials and implementing drainage systems on the outside of the foundation walls.

Why Do You Need to Waterproof the Exterior of Your Basement?

Modern basements are not equipped to handle moisture. When water gets into your basement, it can snowball into a much larger issue. A wet basement attracts nasty pests, such as termites, ants, and cockroaches, which will further damage your property. 

A damp basement is also the perfect environment for mold and mildew. Not only will this mold cause odors and compromise the structural integrity of your home, but it will also affect the air you breathe. 

Excess moisture around the outside foundation of your home will cause the soil to settle, creating uneven floors and foundation cracks in your home. These cracks will upset the foundation of your home and allow even more water into your basement, creating a cycle of damage and deterioration.

Example of exterior basement waterproofing importance with standing water outside a house

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6 Signs You Need Exterior Basement Waterproofing

There are several things to look for that may signal you’d benefit from waterproofing the exterior of your basement. These include a musty smell, wet carpet or drywall, water stains on the floor or walls, moisture in your basement, and even bowing walls and foundation cracks.

Musty Smelling Basement

Musty-smelling basement with water stains

Wet Basement Carpet

Blue basement carpet with wet water stains

Wet Drywall

Wet stains on drywall

Water Stains on Floor or Walls

Water stains on wood flooring

Basement Moisture

Moisture marks coming from a basement floor

Bowing Walls and Foundation Cracks

Cracks in a bowing wall and foundation, and cracks on the concrete floor.

What Causes Water in Basements?

Man working to install a drain to help with basement waterproofing

What is the Process for Exterior Basement Waterproofing?

Once you have identified the signs and causes of a wet basement, waterproofing the exterior can take anywhere from a day to a few days, depending on the project’s size and severity. Typically, the process is broken down into these seven steps:

Excavation

Our team begins by carefully removing the soil from around the perimeter of your foundation walls. It’s necessary to expose the walls in order to assess and fix the damage.

Clean & Prep Walls

It’s important to prepare the foundation walls by removing debris because this aids in the adhesion of waterproofing materials in step four. Once your walls are cleaned, our team fills in any foundation cracks with a waterproofing cementitious material.

Apply Membrane

Once the foundation cracks are filled, we apply a rubberized membrane. This step is important because concrete is porous, so if we put your soil back now, water would still seep into your basement. Our team will decide if you need a liquid membrane, a sheet membrane, a dimple board, or a combination of the three.

Window Well Installation

A common cause of wet basements is poorly installed window wells. When we perform external basement waterproofing, we take care to properly install your window wells to prevent leakage.

Drainage Installation

Now that we’ve built up your foundation against water, we need to prevent moisture from pooling against your walls. We extract the water around the foundation of the house by installing a drainage system. This helps eliminate additional pressures caused by the soil around your home, which could otherwise cause cracking and shearing.

Backfill

Once we install the proper drainage system, our work is almost done. After a final inspection, our team will replace and compact the soil around your foundation.

Downspout Upgrade

As a final precaution against flooded basements, we recommend Virginia and Maryland homeowners bury their downspouts and extend them out from the house. Typically, downspouts dispel water right at the foundation of the home. By burying downspouts, we deposit water farther away from your foundation to prevent pooling.

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Exterior Basement Waterproofing

When you choose Basement Masters, you will always get reliable customer service and installation. Our goal is to efficiently install your exterior waterproofing system and allow you to return to your daily life as quickly as possible. Contact us today for your free evaluation and never worry about water in your basement again!
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