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Is Interior Basement Waterproofing My Best Option?

interior basement waterproofing company in Toronto

Basement flooding is a huge problem that concerns homeowners and business owners alike in Toronto and the GTA. Floods cause extensive damage to property, leads to mold growth, a health concern, and results in costly repairs. There are ways to prevent basement flooding. In this post we’re going to discuss interior basement waterproofing. Follow this link to read more about exterior basement waterproofing.

Why Waterproofing the Interior of Your Basement Matters

Waterproofing the interior of your basement is essential to keeping your basement dry. A thorough inspection helps you identify current basement flooding issues and potential problems you might not be aware of yet. If you are faced with factors such as; high moisture levels in the soil or proximity to neighboring properties that make exterior waterproofing impractical.

Here are some steps you can take to waterproof your basement’s interior

  1. Expose the Basement Wall: Exposing the basement wall and excavating the floor along the foundation walls is the 1st step. This gives you access for installing new weeping tile pipes and helps you see problems that were covered up before.
  2. Install Drainage Membrane: There are several different brands. Apply the drainage membrane to direct water towards the new filtered plastic weeping tile pipes.
  3. Install Weeping Tiles: Weeping tiles help by directing water away from your foundation. It reduces the risk of water accumulating under the concrete slab.

What are the Benefits of Interior Basement Waterproofing?

More Cost-Effective

Interior basement waterproofing is generally more cost-effective than exterior basement waterproofing. This is due to excavation, landscaping, and other expenses associated with waterproofing the exterior of your basement.

Targeted and Precise

Waterproofing your basement’s interior focuses on sealing cracks and holes from the inside while also helping you identify other issues you may not have been aware of. This effectively prevents water entry. Interior waterproofing helps protect your basement’s structural integrity.

Mold and Mildew Prevention

Waterproofing the interior of your basement helps you create a mold-free environment and improve your air quality. I’m sure you’re already aware that mold and mildew can cause significant health issues. In addition to that, Mold can weaken your basement’s foundation, cause or expand cracks in walls, and affect your electrical and plumbing systems. That doesn’t include the damage to household items such as clothing, furniture, and carpets.

Concrete Protection

Most foundations are made of porous concrete. Interior basement waterproofing, including the use of sealants, protects your basement from seepage and keeps your foundation from degrading over time. Interior waterproofing methods also helps direct water away from your home’s interior to prevent flooding.

Should I Choose Interior Waterproofing Over Exterior Waterproofing

It depends on your specific situation:

  • Excessive Soil Moisture: When there is high moisture content in the soil under the basement slab interior waterproofing may be the best solution.
  • Deep Basements: If your basement is very deep, excavation can be challenging or even impossible.
  • Proximity to Neighbors: If your property is too close to your neighbors, it may be impractical or impossible to do exterior waterproofing.

Signs You Need Interior Basement Waterproofing

Damp or Moldy Odors

Musty or moldy odors in your basement is an obvious sign you have a moisture problem in your basement.

Visible Water Stains

Another obvious sign is visible water stains on walls, floors, or ceilings. These stains usually appear discolored and indicate the need for interior basement waterproofing.

Cracks in Walls or Foundation

Cracks in interior walls or the foundation allow water to seep into your home. If you notice cracks, especially if there is also dampness, you may have a problem.


A powdery white substance forming on walls or surfaces indicates the need for waterproofing. This happens when water dissolves the salt in construction materials and leaves them behind as it evaporates

Pooled Water or Dampness

Of course, puddles of water, damp spots, or consistently high humidity in your basement are red flags that you should not ignore.

Peeling Paint or Wallpaper

Moisture can cause paint or wallpaper to peel, blister, or bubble. If you notice these issues, there might be bigger problems that require your attention.

Sump Pump Overuse

If your sump pump is running more often than necessary, its a sign that water is building up and it can be expensive for your sump pump to run all the time.

Professional vs. DIY: When to Call the Basement Waterproofing Experts

Some things that protect your basement can be done by you, the homeowner. However, certain tasks require interior basement waterproofing professional expertise and equipment.

DIY Tasks

  • Regular Inspection: You should inspect the interior of your basement for visible cracks or signs of water damage on a regular basis. If you notice any of the issues listed in this post, you should inspect your basement and the foundation. You can do this yourself or you can get a free basement inspection from a Toronto basement waterproofing company.
  • Minor Crack Repairs: Hydraulic cement is available at most hardware stores. You can seal small cracks easily, however, be aware that they may be indicators of a larger problem, especially if you’ve had to do this often.

Professional Tasks

  • Comprehensive Basement Waterproofing: Installing membranes and weeping tiles is a daunting task to do by yourself. It should be done by professionals to make sure they fit correctly and function properly.
  • Drainage System Check: Basement waterproofing professionals will assess and improve the connection between weeping tiles and your drainage system or sump pump. They look at the whole system vs just patching one problem at a time.
  • Emergency Battery Backup System and Sump Pump Alarm: Installing these systems makes sure your basement remains dry during power outages, often associated with severe weather, and alerts you to potential basement flooding issues.

Choosing the Right Interior Basement Waterproofing Professional

When hiring a professional for interior basement waterproofing, ensure they are experienced, licensed, and insured. Look for the following qualities:

  • Years of Experience: A well-established company with a proven track record. Draincom is the top basement waterproofing company with more than 20 years of experience in the GTA. They are familiar with the unique challenges Toronto homeowners face.
  • Proper Licensing: They should be licensed to operate in your city. Draincom is fully licensed to perform basement waterproofing and plumbing in Toronto and the GTA.
  • Full Insurance: This protects you in case of any accidents or damage during the project. Draincom is fully insured.
  • Warranty: A reputable company will offer a warranty on their services, giving you peace of mind that the work will stand the test of time. Draincom offers the best basement waterproofing guarantee in the business. They offer a 25-year warranty.

At DrainCom, we specialize in comprehensive interior and exterior basement waterproofing solutions. Our team of experts is dedicated to protecting your home from water damage. Contact us today to learn more about our services and how we can help you safeguard your basement.

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