water in basement

Water in the Basement: What to Do, Causes & Prevention

Water in the basement can lead to various problems, including mold growth, musty odors, damaged walls and floors, and ruined belongings. It’s crucial to immediately remove the water, address underlying issues, and implement preventive measures to keep your basement dry. In this blog post, we will discuss what to do when there’s water in your basement, common causes of basement water problems, and preventive steps you can take.

What to Do Immediately When There’s Water in Your Basement:

When faced with water in your basement, it’s important to take immediate action to minimize damage and address the issue promptly. Here are the steps you should take immediately when there’s water in your basement:

water in basement

  1. Prioritize safety: Your safety is paramount. Ensure that you stay safe while dealing with water in the basement. Do not enter standing water if there is a risk of electrical shock. Wear rubber boots and protective clothing to avoid direct contact with the water if it is safe.
  2. Identify the source: Try to determine the source of the water. Is it a one-time event caused by heavy rain or a plumbing leak? Understanding the source will help you address the underlying problem effectively.
  3. Stop the water source (if possible): If the water comes from a plumbing leak, shut off the water supply to prevent further flooding. Contact a plumber or repair professional for immediate assistance if the source is a broken pipe or appliance.
  4. Remove standing water: If your basement is partially flooded, you can use a wet-dry vacuum to remove standing water. Avoid overloading electrical circuits or using electrical devices while standing in water. For more extensive flooding, it is advisable to call a professional plumber or a disaster mitigation specialist with the equipment to pump out the water safely.
  5. Salvage important belongings: If the water does not yet damage items in the basement, remove them and place them in a dry area. Prioritize items susceptible to water damage, such as documents, electronics, and valuable possessions.
  6. Address potential mold growth: Materials like paper, fabric, wood, and leather that remain wet for over a day or two can become breeding grounds for mold. Dry out and save what you can, and discard any severely damaged items. Consider using a dehumidifier to help remove moisture from the air and prevent mold growth.
  7. Document the damage: Take photos or videos of the water damage in your basement. This documentation can be useful for insurance purposes and when filing claims.
  8. Contact professionals if needed: If the water damage is extensive or if you’re unable to determine the source of the water, it is advisable to contact professionals such as basement waterproofing experts, plumbers, or restoration companies. They can assess the situation, provide guidance, and offer the necessary repairs or waterproofing solutions.

Remember, addressing water in the basement promptly is crucial to prevent further damage, mold growth, and potential health hazards. Act swiftly and seek professional assistance to ensure a safe and dry environment.

Causes of Basement Water Problems:

Various factors can cause Baltimore basement water problems. Understanding the underlying causes is crucial in addressing and preventing water infiltration in your basement. Here are some common causes of basement water problems:

Surface water issues:

  • Poor exterior drainage: If the slope of the ground around your foundation is inadequate or if your gutters and downspouts are not functioning properly, water can accumulate near your foundation and seep into the basement.
  • Improper grading: If the soil around your foundation is not properly graded to direct water away from the house, it can lead to water pooling and eventually finding its way into your basement.
  • Window well problems: Window wells not properly installed or maintained can allow water to enter the basement through cracks or gaps around the windows.

Subsurface groundwater:

  • Hydrostatic pressure: Rising groundwater during wet weather or poor drainage can create hydrostatic pressure against the foundation walls and floor, leading to water seepage through cracks and openings.
  • Cracks in the foundation: Over time, foundation walls may develop cracks due to settlement, soil expansion, contraction, or other factors. These cracks can become pathways for water to enter the basement.
  • Clogged or failed perimeter drains: Perimeter drains, such as French drains, are designed to collect and redirect groundwater away from the foundation. Water can accumulate and penetrate the basement if these drains become clogged or fail.

Plumbing issues:

  • Leaky pipes or fixtures: Plumbing leaks, such as a burst pipe, leaking supply lines, or faulty fixtures in the basement, can introduce water into the space.
  • Sewer backups: In cases where the municipal sewer system becomes overwhelmed with water during heavy rainfall, sewage can back up into basements through floor drains or plumbing fixtures.

Structural problems:

  • Foundation cracks: Structural issues like cracks in the foundation walls or floor can allow water to enter the basement. These cracks can occur due to foundation settlement, shrinkage, or other forms of foundation movement.
  • Basement wall leaks: Improperly constructed or deteriorating basement walls can develop leaks and allow water infiltration.

External factors:

  • Heavy rain or flooding: Excessive rainfall or flooding in the surrounding area can cause water to seep into the basement, especially if the property lacks proper waterproofing measures.
  • Melting snow or ice: During the thawing of snow or ice, water can enter the basement if the surrounding soil is not adequately drained or if there are vulnerabilities in the foundation.


Identifying the specific cause or combination of causes contributing to your basement water problems is important to implement effective solutions. If you’re unsure about the cause or need assistance, consulting with a basement waterproofing professional can help diagnose the issue and provide appropriate remedies.

Prevention Tips to Keep Your Basement Dry:

Preventing water from entering your basement is essential to avoid potential damage and costly repairs. Here are some preventive measures you can take to keep your basement dry:

Improve outside drainage: Ensure that water flows away from your foundation by taking the following steps:

  • Clean your gutters regularly to prevent overflow and clogging.
  • Install downspout extensions to direct water at least 10 feet away from the foundation.
  • Check the slope of the soil around your foundation and make sure it slopes away from the house to prevent water pooling.

Install or replace a sump pump: A sump pump is a crucial component of a waterproofing system. Consider the following:

  • Install a reliable sump pump in your basement. Look for a model with cast-iron construction and a backup battery system to ensure continuous operation even during power outages.
  • Regularly test your sump pump to make sure it’s functioning properly.

Add interior drainage: An interior drainage system can effectively manage water entering your basement. Consider the following options:

  • Install a basement drainage system such as the WaterGuard® Basement Drainage System. It collects water from the walls and floor and channels it to a sump pump for removal.
  • A French drain system can also be effective in managing water seepage. It involves installing a perforated pipe along the interior perimeter of the basement, which redirects water to a sump pump or a drainage outlet.

Protect against plumbing leaks: Plumbing failures can cause significant water damage. Take the following precautions:

  • Regularly inspect and maintain your plumbing system. Look for leaks in pipes, connections, and fixtures.
  • Replace old or damaged water heaters, as they can rust and lead to leaks.
  • Replace rubber washing machine supply hoses with steel-braided ones less prone to cracking or bursting.

Install new windows and well covers: Basement windows can be vulnerable to water infiltration. Consider these steps:

  • Clean window wells regularly to prevent clogging from leaves and debris.
  • Replace old, leaky basement windows with energy-efficient, watertight windows.
  • Install window well covers to protect against water intrusion and debris buildup.

Repair foundation cracks: Cracks in your foundation can allow water to enter your basement. Address them by:

  • Inspecting your foundation regularly for cracks, both vertically and horizontally.
  • Consulting a professional foundation repair expert to assess the severity of the cracks and determine the appropriate repair method.

Check the roof for damage: A damaged roof can lead to water leaks affecting your basement. Take the following steps:

  • Regularly inspect your roof for missing or damaged shingles.
  • Address any signs of roof damage promptly to prevent water from entering your home.


Implementing these preventive measures can significantly reduce the risk of a wet basement and protect your home from water damage. If you need more clarification on any of these steps or need expert advice, it’s recommended to consult with a basement waterproofing professional who can provide personalized solutions for your specific situation.


Water in the basement can lead to serious damage and should be addressed promptly. Following the immediate steps outlined above, identifying the causes of basement water problems, and implementing preventive measures, you can keep your basement dry and protect your home and belongings. Remember, consulting a basement waterproofing expert can provide tailored solutions for your situation.


If you need professional assistance, Basement Systems offers proven waterproofing solutions and expert installation to ensure a consistently dry basement. Contact a basement waterproofing contractor near you for a free evaluation and cost estimate.

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