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Best basement waterproofing pros near Seneca, IL

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Top-Rated Basement waterproofing pros in Seneca - 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 Seneca, 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%
14 neighbors recently requested a quote
Avatar for Everseal Basement, Inc.
Everseal Basement, Inc.
4.5(
130
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Seneca, 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 Copper Sky Plumbing
Copper Sky Plumbing
4.8(
55
)
Basement Drainage Channels - Install

Serving Seneca, 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%
1 neighbors recently requested a quote
Avatar for Thrasher, Inc.
Thrasher, Inc.
4.1(
182
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Seneca, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Putting in an egress window in basement is not easy unless you are professionals like thrasher is guys are very neat & particular on doing the job right the first time!! Clean up was fantastic & even seeded where they drove equipment over lawn Iam so thankful I hired the professionals thanks"
Basement Waterproofing Before and After
Concrete Repair Before and After
Thrasher Services
Thrasher Services
Thrasher Services

+12

Response time2 days
940 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Klock Home Services
Klock Home Services
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Seneca, 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 Seneca, 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
Avatar for Crawlspace / Basement Waterproofing Solution
Crawlspace / Basement Waterproofing Solution
4.4(
256
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Seneca, IL and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"It was fine, he came on time and evaluated the basement area for moisture.  I was concerned about a long crack down the wall, but he assured me that no water was coming through and provided a waterproof material to seal the crack.  He finished, cleaned up the area, and left.  He was very personable and professional.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Recommended by90%of homeowners
Avatar for Everdry Waterproofing of Illinois
Everdry Waterproofing of Illinois
4.1(
239
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Seneca, IL and surrounding areas

In business since 1989

Free estimates

Credit card accepted

"Last year, I got service on my basement from Everdry Waterproofing, Illinois. Until now, I have not encountered any problem since the service received. Also, the service was superb from the company. And I was enjoying my dry basement a lot and recommended them to my friends."
Before
Interior System/Sump Pump - After
Sealed
Sealed
Exterior Waterproofing System

+5

Response time8 hrs
Recommended by93%of homeowners
Showing 1-10 of 41
Basement Waterproofing FAQs, answered by experts

Yes, water coming up from the floor should be treated as an emergency. If you're unable to either identify or stop the source of the water on your own, contact an emergency plumber right away. In addition to harming your flooring, standing or pooled water can lead to water-damaged concrete.

No, everything doesn’t get wet if the bathroom is well-designed and the fixtures are properly installed. It’s important that the floor of a wet room drains correctly, and proper waterproofing and slip-resistant flooring are used to avoid creating slipping hazards. Since the shower isn’t housed in an enclosed space, you’ll need to make sure the towel rack and toilet paper holder are placed in areas where they won’t get wet.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

If you notice standing water under the deck after rainstorms, you may need a drainage system to efficiently move this water. You do not want standing water to rest against your foundation or against support posts for the deck, as this could cause significant structural problems over time. Make sure the area has proper grading, too.

The Seneca, IL homeowners’ guide to basement waterproofing services

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