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The Drawbacks of Basement Tanking: What You Need to Know

Basement tanking, often regarded as a practical solution to keep water and moisture at bay, is an essential process for homeowners looking to safeguard their underground living spaces. It involves creating a waterproof barrier on the outside of a foundation to prevent water infiltration. While basement tanking can be a game-changer for many homes, it’s essential to acknowledge that, like any construction technique, it comes with its set of disadvantages. In this article, we will explore some of the drawbacks of basement tanking, providing a balanced perspective on this waterproofing method.

Complex Installation on Homes with Obstacles

One of the significant disadvantages of basement tanking is the challenge it presents when dealing with homes that have numerous obstacles around the foundation. These obstacles can include decks, additions, trees, and other structures that make it difficult to access the exterior walls of the basement. The process of creating an external waterproof barrier requires ample space and a clear path around the foundation. With these obstacles in the way, the installation becomes more complicated, time-consuming, and costly.

Cost Considerations

Basement tanking is an effective but often expensive method to waterproof your basement. The materials and labour involved can drive up the cost significantly, especially if complications arise during the installation. The need for excavation, which may include removing decks or other structures, can add a substantial amount to the project’s budget. Homeowners should be prepared for the financial commitment required for basement tanking, as it can sometimes surpass other waterproofing alternatives.

Ongoing Maintenance

Despite being an efficient waterproofing technique, basement tanking requires ongoing maintenance to ensure its effectiveness over the long term. Over time, the external waterproof barrier can deteriorate due to factors like soil movement, tree roots, and even natural wear and tear. Regular inspections and maintenance efforts are necessary to repair any damage or breaches in the waterproofing system, adding to the long-term cost of this method.

Limited Aesthetic Appeal

Another drawback of basement tanking is its impact on the external appearance of your home. The installation process often involves excavation, which can disrupt landscaping and leave unsightly trenches around the foundation. While these issues can be mitigated with proper restoration, they can affect the curb appeal of your home during and after the waterproofing process. In some cases, the installation may also necessitate changes to the architectural features of your home, further compromising its aesthetic appeal.

Limited Compatibility

Basement tanking may not be suitable for all types of basements or foundations. Homes with specific construction materials or structural issues might not be good candidates for this waterproofing method. Additionally, in some instances, local regulations and zoning restrictions can limit the application of basement tanking. Homeowners must consult with professionals and local authorities to determine whether basement tanking is a viable option for their particular situation.


Basement tanking is a well-regarded method for preventing water and moisture from infiltrating your basement. However, it’s crucial to be aware of its disadvantages, especially if your home has obstacles around the foundation. The complexity of installation, high costs, ongoing maintenance, aesthetic concerns, and compatibility issues are all factors to consider when deciding on the best waterproofing solution for your home. It’s essential to consult with experienced professionals, who you can find at London Damp, who can provide guidance on the most suitable approach for your specific circumstances. Ultimately, making an informed choice will help you protect your basement and preserve your home’s structural integrity for years to come.

London Property Preservation
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