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Best basement waterproofing pros near Sandoval, IL

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

Effingham Foundation Systems
5.0(
3
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Sandoval, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Offers commercial services

"My home (crawlspace) was inspected recently by Foundation Recovery Systems. We were given very helpful information on improving our situation with waterproofing/encapsulation of the space. The owner was professional with his presentation/service. We were very satisfied."
Response time1 day
16 neighbors recently requested a quote
TNT Turnover Services
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sandoval, IL and surrounding areas

Approved

TNT Turnover Services isn’t just remodeling spaces—we’re transforming them.\n\nWe take outdated, worn, or underperforming areas and turn them into clean, modern, high-impact spaces built to impress and made to last. From kitchens and bathrooms to full property turnovers, our work is driven by precision, quality craftsmanship, and attention to every detail.\n\nAt TNT Turnover Services, we don’t believe in shortcuts—we believe in results. We bring reliability, speed, and professionalism to every project, delivering a smooth, hassle-free experience from start to finish. On time. On budget. Done right.\n\nWhether you’re upgrading your home or preparing a property for its next chapter, we’re here to raise the standard and exceed expectations.

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 Sandoval, IL and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"I know of no other contractor who has total customer satisfaction as his top priority like Mr. Flanagan does. He is absolutely the best.
My basement sustained ankle-deep water as the result of an outdoor basement stairwell drain that violently backed up because its circa-1951 drain line led to the street storm sewer (by design). That sewer was overcome with water during a storm in the summer of 2010 that featured a tornado in my western-suburbs area. Soon after pumping the water out of my basement with a mobile pump, the mess prompted me to (once again*) call Mr. Flanagan (*His crawlspace crew had done a beautiful job finishing my dirt-floor crawlspace with a concrete floor and wall insulation a couple of years earlier).
After the basement waterproofing project described in this review was complete, however, I was disappointed with the workmanship: The concrete work looked less-than-professional (out-of-flush with sump flange and the stairwell drain, plus way too many swirl marks and splattering) in the stairwell and basement's appearance areas. In short, it just didn't look like his business's flawless concrete job that was done in my crawlspace just years earlier.
Mr. Flanagan agreed. With no questions asked, he immediately had a different crew come to my home, tear out all of the previously laid concrete and drain lines and replace it with the workmanship that he would expect his crews to use in their own homes. The re-do of the project at least had met my high expectations for its cosmetics. And, of course, I hoped it was a sufficient waterproofing solution for my basement.
Fast forward just a few short years. Affter having perhaps sustaining that 100-year event with the Chicago-area rain storm of April 17-18, 2012, while my neighbors are pumping water out of their basements, mine remains bone dry. Thank you Mr. Flanagan and Crawlspace / Basement Waterproofing Solutions for a job (design and installation) well done. Your basement waterproofing solution indeed deserves an A+.

"
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+13

Recommended by90%of homeowners
Avatar for Basement Seepage Solution Inc
Basement Seepage Solution Inc
3.6(
29
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sandoval, IL and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Basement Seepage Solutions was my fifth quote. I almost canceled because I was sick of getting quotes and all the big companies charge about the same $70-90 per foot of drain tiles. Matthew's company beat these quotes hands down. He charges $50 a foot plus $10 off a foot for Angies list members (a savings of $1000 for me.). This company beat the next lowest quote by $3,600 so this was a no brainer. Matthew's company did excellent work. They were on time and professional and communicated with me the entire time. Also, Matt is on site during the process and is not just a sales man who comes for a quote then sends out a crew. The job took two days mainly due to the Villages inspection schedule. But I think this is preferable over the big companies that want to do it all in one day but are in your house from 8-8. Highly recommend if you need any sort of basement work done"
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+8

Recommended by70%of homeowners
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Basement Waterproofing FAQs, answered by experts

Crawl spaces are prone to issues caused by excess humidity and improper ventilation, but that doesn’t mean you should avoid buying a house with a crawl space. A home that is encapsulated and well-maintained shouldn’t have any more issues than a slab or basement home.

Proper drainage prevents water damage, mold growth, and foundation settling, protecting your home’s structural integrity.

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

The Sandoval, IL homeowners’ guide to basement waterproofing services

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