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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%
29 neighbors recently requested a quote
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Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,524
)
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

"We had our basement waterproofed last year and were very happy. This year's project was adding two support beams. Again, we were very happy with the quality of the work and the people we dealt with. Both Gunnar and his team and Perfecto were skilled, efficient, and very professional. Highly recommend."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
53 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
303 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
35 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
81 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
7 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for A-1 Patrick's Sewer & Pipe Services
A-1 Patrick's Sewer & Pipe Services
4.5(
189
)
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%
Recommended by94%of homeowners
Request Quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,293
)
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 - RepairBasement Drainage Channels - Install

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
9 neighbors recently requested a quote
Recommended by83%of homeowners
Request Quote
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Basement Waterproofing questions, answered by experts

A sump pump can remove excess moisture from under a house if standing water is present. Other ways to protect your crawl space from moisture include installing a vapor barrier, using a dehumidifier, installing insulation, and using a fan to dry the space. Finally, keeping your gutters clear of debris and positioning your downspouts away from the home’s foundation can prevent moisture from getting into the crawl space in the first place.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

While a standard gutter system is widely considered the most effective way to prevent water damage to your home's foundation, several alternatives are available. These options can be used on their own in certain climates or as supplementary protection.

Common alternatives include:

  • Rain Chains: These are decorative chains that hang from the roof's edge, guiding rainwater to the ground.

  • Drip Edges: These metal strips are installed at the edge of the roof to direct water away from the fascia. While often used with gutters, they can be paired with a ground-level solution but are typically not sufficient on their own.

  • Rain Dispersal Systems: These systems work by breaking up the heavy sheet of water flowing off the roof, dispersing it over a wider area.

  • French Drains: This ground-level system uses a perforated pipe in a gravel-filled trench to collect and redirect water runoff away from the house.

  • Drip Paths: Placed directly below the roofline, these paths made of concrete, stone, or other materials prevent soil erosion and guide water away.

It's important to note that some alternatives like rain chains and dispersal systems may not be adequate in regions with heavy rainfall because they don't divert water away from the foundation as effectively as a full gutter system. Ground-based solutions like French drains can be very effective but are often more expensive and can affect your landscaping and curb appeal. Many experts recommend installing a full gutter system for maximum protection and using alternatives as supplementary measures.

Waterproofing or encapsulating protects against moisture, preventing mold growth and structural damage. These services also enhance energy efficiency and improve air quality by keeping humidity levels in check.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

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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