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Best basement waterproofing pros near Dekalb, IL

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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon14
    Verified basement waterproofing services reviews

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

Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dekalb, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"My sump pump goes off all the time; I think there is a natural spring around my house. Joe Silverberg, my local U.S. Waterproofing rep., has been wonderful in advising me on my sump pump replacement, (which works beautifully by the way and gives me so much peace of mind!), and on sealing cracks in my basement walls. Whenever I have needed him, Joe comes over right away to address the situation. I highly recommend Joe and U.S. Waterproofing, who does excellent work and stands by that work!"
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
26 neighbors recently requested a quote
Avatar for Everseal Basement, Inc.
Everseal Basement, Inc.
4.5(
130
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dekalb, IL and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Ever seal did a fantastic job figuring out what my problem was, quoting a decent price and fixing my problem. I highly recommend them for wAterproofing; I'm only sorry I didn't call them earlier."
Response time1 day
Response rate88%
4 neighbors recently requested a quote
Avatar for Best Solutions Basement Repairs & Waterproofing
Best Solutions Basement Repairs & Waterproofing
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dekalb, IL and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

before
after picture
Response time2 days
8 neighbors recently requested a quote
Avatar for Copper Sky Plumbing
Copper Sky Plumbing
4.8(
55
)
Basement Drainage Channels - Install

Serving Dekalb, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Emergency services offered

Family owned and operated. Owner, David Torres is a registered Master Plumber. Licensed, Bonded & Insured. 20 years of experience. Don't get flooded by plumbing problems! We can fix it. *FREE PLUMBING INSPECTION INCLUDED WITH ANY SERVICE*~ Just mention this ad!\nCopper Sky Plumbing addresses each job with attention to detail and excellent customer service. You can be confident in a company that is honest and fair with the experience to get the job done right the first time.\nAccepting cash, credit cards, check or PayPal. * FINANCING OPTIONS AVAILABLE*

Electric to Gas
Original bathtub before
Demolition has begun
Shower walls are removed, bathtub is sawed in half for removal.
Ready to begin installation of new shower.

+39

Response time11 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for U.S. Allied Plumbing & HVAC
U.S. Allied Plumbing & HVAC
4.8(
17
)
Basement Drainage Channels - Install

Serving Dekalb, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Called because of carbon monoxide alarm in the basement and the need to replace 2 ancient water heaters. 3 hours later job completed! Surprised by how quickly they responded and completed the job. Best price of all responders by far. Clean, courteous, and non intimidating. Would highly recommend this company, and will use them for all future needs. Thanks guys."
US Foods
US Foods
US Foods
US Foods
US Foods

+17

Response time10 hrs
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Klock Home Services
Klock Home Services
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dekalb, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hi, I’m Kevin with Klock Home Services, proudly serving the Fox Valley area. I provide reliable, detail-oriented handyman and home repair services at fair prices. From furniture and drywall repair to minor carpentry, fixture installs, and general maintenance, I treat every project like it’s in my own home. Whether it’s a small fix or a larger task, you can count on quality work done right the first time.

Avatar for ASI Salvage and Demolition
ASI Salvage and Demolition
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dekalb, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

At ASI Salvage & Demolition, no job is too big or too small. We specialize in demolition, commercial cleanouts, junk removal, scrap metal recycling, hauling, and industrial dismantling. Our experienced crew is known for dependable service, competitive pricing, and completing projects safely and on time. We treat every project as if it were our own and are committed to exceeding our customers’ expectations from start to finish.

3 neighbors recently requested a quote
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Basement Waterproofing FAQs, answered by experts

Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.

Mold and other fungi love moisture, so the best way to prevent mold growth after water damage is to remove as much moisture as possible. First, find the source of the water or moisture, such as a leak or clogged gutters, and correct the problem. Next, remove standing water, vacuum up puddles with a shop vacuum, and run blower fans and dehumidifiers for 24 to 72 hours. Once you've removed all traces of moisture, disinfect the area using either vinegar or bleach to kill any remaining mold spores.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

Several types of insulation are effective for crawl spaces, with spray foam and rigid foam boards being two of the best options. Closed-cell spray foam insulation is a strong choice because it effectively repels moisture, resists biological growth, seals the air, and provides excellent thermal protection, especially in hard-to-reach areas. Rigid foam insulation boards are another excellent material as they insulate well, resist water damage, and will not settle over time like fiberglass or cellulose.

The Dekalb, IL homeowners’ guide to basement waterproofing services

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