Top-rated basement waterproofing pros.

Best basement waterproofing pros near Bethalto, IL

Enter your zip and get matched with up to 5 pros

TRUSTED BY BETHALTO, IL HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon34
    Verified basement waterproofing services reviews

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

Avatar for Roberts Foundation And Crack Repair
Roberts Foundation And Crack Repair
4.2(
164
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Bethalto, IL and surrounding areas

Approved

In business since 1991

Free estimates

Credit card accepted

"Everything about this repair job was wonderful - from Brad giving us the bid (and explaining exactly what would be done), to Will and Ree (sp?) doing the excellent work. Everyone was courteous, professional and left everything spotless. And the cost was surprisingly lower than I thought it would be."
.
Response time3 days
21 neighbors recently requested a quote
Recommended by82%of homeowners
Affordable Upgrades
5.0(
46
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bethalto, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Andrew did a fantastic job. He was very knowledgeable and explained the pros and cons of the different waterproofing methods he recommended I apply to my basement foundation to make sure it stayed sealed long term. He was very professional, a good communicator, cleaned up after himself, and made sure to provide updates throughout the work. He even repaired a cracked portion of my sewer while installing a sump pump. Would highly recommend! Not a lot of waterproofing companies out there like Affordable that are a one man show, which is the best part. One man job = one way communication and responsibility. It hurts me not to give him a full 5 stars, but the only minor con I can bring up was how the work was some charges tacked on at the close of the project, due to some extra cost he told me he incurred for the pipe/connections needed to repair/replace the cracked pipe. The labor materials for repairing the damaged pipe were listed on the original firm bid I received before the project started. As I said this was a VERY MINOR con and I feel you will not find a better contractor out there to replace Andrew for your waterproofing needs!"
Waterproofing system
Response time12 hrs
Response rate91%
16 neighbors recently requested a quote
Musick House Leveling, LLC
4.9(
29
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bethalto, IL and surrounding areas

Approved

In business since 1987

Free estimates

Credit card accepted

"The technician that did the service, let me know specifically one thing that turned not to be possible. I would never known, because the issue was below the ground. He also gave me post sales advice to recommend to my A/C who would be installing a unit near the repair."
Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Woods Basement Systems, Inc.
Woods Basement Systems, Inc.
4.5(
6
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bethalto, IL and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

We are a locally owned and family operated company that ensures each homeowner has a remarkable experience with their home improvement project. Our services are customized to the individual project, paying close attention to the details of each project that we're trusted to complete. We pride ourselves on having the best people and best products in our industry. Because of the quality of our work as well as our commitment to outstanding results we are the highest rated most reviewed "ALL THNNGS BASEMENTY!" contractor. We look forward to building lasting relationships and sustaining the peace of mind homeowners desire that restores the value of their homes.\nFully & Insured!\nTo speak with our appointment center specialists call (314) 965 - 1980 or\n(618) 344- 2288, thank you for considering Woods.

Corner From Sump
Before Photo
Dual Pump Station
Large Basement
Work Around

+20

144 neighbors recently requested a quote
...
Showing 1-10 of 69
Basement Waterproofing FAQs, answered by experts

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.

Regular inspections, maintaining proper grading around the foundation, and keeping gutters clear are advisable. Vapor barriers and sealants may need checking for wear after several years.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

It is better to have a crawl space that is tailored to the outside temperature, your needs, and the season. For example, it is much better to have a vented space when it’s very hot outside and your AC bills are sky-high. Conversely, when the temperature drops and humidity rises, it is almost always better to have your vents shut and covered if possible.

The Bethalto, IL homeowners’ guide to basement waterproofing services

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