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Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:

• Using dehumidifiers 

• Silicate concrete sealers

• Vapor barriers 

• Baseboard channels 

• Drain tile systems

• Waterproofing paint

• Drainage systems

• Epoxy injection

• Interior French drains

• Exterior excavation and waterproofing

• Cement waterproofing

• Weep tiles

• Liquid membrane

• Sheet membrane 

• Yard grading

• Gutters and downspouts

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

• Water in your basement, including damp walls or puddles on the floor

• Mold spots in your basement

• Musty smells or odors

• Warped doors or walls

• Cracks in walls

• Insect issues, such as cockroaches and termites

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.