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TRUSTED BY THORNTON, IL HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon139
    Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Thornton, IL

*The Angi rating for Basement Waterproofing companies in Thornton, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Thornton, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on August 18, 2026

Find Basement waterproofing pros in Thornton

Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
597
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Thornton, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"Called company on Monday and got an appointment for an inspection on Wednesday. That following Monday, the technician arrived and went through each step is sealing off the concrete foundation to the water leak. The fix worked well and was put to the test with the recent record rains. Not one drop of water came into the basement."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
32 neighbors recently requested a quote
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Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,522
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Thornton, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"I must say Victor and his team of professionals from Perma Seal did an emaculent job, explained every little detail to my understanding and l didn't have to keep asking questions..l would definitely recommend him and his team to anyone who needs their home waterproofed, and l will request him and his team if l ever need similar work again..5 STARS TO VICTOR AND HIS TEAM*****"
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
55 neighbors recently requested a quote
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Avatar for The Real Seal LLC
The Real Seal LLC
5.0(
252
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Thornton, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"My husband and I had a wonderful experience with The Real Seal in July 2024. They fixed a bowing foundation and waterproofed the basement for future finishing. Their team was prompt, respectful, organized and thoroughly educated us on the drainage tile system, installation process and prevention. Thank you, Real Seal for being the flawless first step to our dream basement/family space!"
Before and After Crack Repair
I Beam Supports
Polyjacking in Darien
Our Carbon Fiber Straps Repair Before, During, and After
Crack repaired with Carbon Fiber Staples

+39

Response time10 hrs
351 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for The Real Seal, LLC
The Real Seal, LLC
4.5(
38
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Thornton, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I am extremely pleased with the work that Real Seal Performed. They were right on time, curtious, performed everything as agreed and did a good quality work. The quality was tested quickly, since it rained real hard that same day, and we have stayed dry."
Interior Foundation Crack Repair
Exterior Drain Tile System
PHCC 1730 Battery Backup System w/ 1033 sump pump
Interior Foundation Crack Repair
Cut-out of Interior Drain Tile System

+74

Response time10 hrs
40 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Chicago Basement Systems
Chicago Basement Systems
5.0(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Thornton, IL and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Devin Rhoades was excellent at explaining in detail about our needs and possibilities in fixing our support wall and encapsulating our crawl space and draining the water away from our house. He was well informed on all aspects of our situation. I would recommend Devin and Chicago Basement Systems to anyone needing help with basements or crawlspace issues."
Crack Repair Before
Crack Repair After
101 neighbors recently requested a quote
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Avatar for Best Price Sewer and Plumbing
Best Price Sewer and Plumbing
4.9(
137
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Thornton, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

Welcome to Best Price Sewer and Plumbing, your number one plumbing contractor. We pride ourselves on our excellent customer service and the attention to detail we put into every job we do. Serving all of the CHICAGOLAND area!

Response time5 hrs
10 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Avatar for A-1 Patrick's Sewer & Pipe Services
A-1 Patrick's Sewer & Pipe Services
4.6(
188
)
Basement Drainage Channels - Install

Serving Thornton, IL and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"We called Patrick to fix a sewer smell in our basement. After digging out a section of the floor, he found a pipe installed by the previous owner that had never been correctly attached to the sewer main. He and his crew worked on a Friday and Saturday to fix the issue. They jackhammered out the floor, dug up the old pipe and replaced it. Patrick was very attentive and showed me all the steps he was taking, carefully explaining everything that needed to be done. Cleaned up afterward and finished the job without issue. Highly recommended."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time2 days
Response rate100%
Recommended by94%of homeowners
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All Service Calls, LLC
4.5(
41
)
Basement Drainage Channels - Install

Serving Thornton, IL and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

Here at All Service Calls LLC, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

Response time3 hrs
Response rate99%
4 neighbors recently requested a quote
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Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,291
)
Basement Drainage Channels - Install

Serving Thornton, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Had a flood in basement when sump pump failed..  They installed new sump pump."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
33 neighbors recently requested a quote
Recommended by86%of homeowners
Request Quote
Avatar for Preban Farm Drainage & Excavating, LLC
Preban Farm Drainage & Excavating, LLC
4.1(
10
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Thornton, IL and surrounding areas

Approved

In business since 2018

Emergency services offered

Credit card accepted

We are a full on drainage and excavating contractor. We do everything from grading, excavating, and various types of drainage work from agricultural, commercial, and residential.\nWe pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!\n

Response time5 days
10 neighbors recently requested a quote
Recommended by83%of homeowners
Request Quote
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Basement Waterproofing questions, answered by experts

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

Proper basement ventilation is very effective at reducing humidity. Without enough ventilation, your basement is prone to mold and moisture damage. Your basement should have as much natural ventilation via windows and doors as possible, and if your budget allows, you should also consider installing an ERV system to keep basement humidity levels at bay.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

It’s not the number of weep holes that should be of concern to builders but rather their spacing. Weep holes are usually spaced anywhere between 16 inches on center when using round tubes or wicking materials and 24 inches on center when using open-head joints. This is a more conservative spacing than the 33-inch maximum spacing on center that’s mentioned in the International Residential Code. All in all, the total number of weep holes a brick exterior should have will depend on the size of the structure.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation. 

The Thornton, IL homeowners’ guide to basement waterproofing services

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

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