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Top-Rated Basement waterproofing pros in Cambridge - Updated Nov 2026

Scott's Construction
4.5(
11
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, IL and surrounding areas

In business since 1985

Free estimates

"Scott had to repair/reinforce/replace floor joists in the crawl space and replace a basement window, repair cracks in the basement foundation, and replace a rotting wood post with a steel one. This was a complex job requiring Scott and his workman two days. They did an excellent job and did more than the contract specified, including wrapping foil tape around loose connections in the furnace ducts, shoring up unsupported floor joists in areas other than the original work order, etc. Scott is hardworking, knowledgeable, friendly and honest. I would recommend his company to anyone needing foundation, basement, and floor joist repair."
Response time3 days
Recommended by100%of homeowners
Avatar for Midwest Basements, LLC
Midwest Basements, LLC
4.0(
4
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, IL and surrounding areas

In business since 2005

Free estimates

Emergency services offered

Midwest Basements LLC should be your first choice when it comes to any of your foundation needs. We take the same pride in our work as you do in your own home. Please call and ask about our in house financing and our emergency response service. Thank You!

Crawl Space
Ramp & Door
Digging out
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

Underfloor insulation alone will not cause moisture and mold, but improper installation can. Although the purpose is to seal any drafts, your subfloor still needs ventilation. If you seal the area too tightly and prevent all airflow, this can cause moisture to get trapped. This moisture eventually leads to mold and—if your floors are wood—rotting.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

Crawl spaces are prone to issues caused by excess humidity and improper ventilation, but that doesn’t mean you should avoid buying a house with a crawl space. A home that is encapsulated and well-maintained shouldn’t have any more issues than a slab or basement home.

The Cambridge, IL homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.