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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon228
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Thornton

"Good work in general; our basement no longer sees water for over 3 years now, which is the most important thing. But there were some real issues: The biggest issue is that USW did not adhere to local electrical codes, and did not arrange for a final inspection of the project. So we didn't find out that it wasn't to code until years later, and now it's a big hassle and minor cost to fix and get the permits. Ask your local gov yourself what you need to do for permits and inspections; don't rely on USW! USW said they would seal any foundation cracks found along the way; they didn't do this until I bugged the warranty dept about it (but they did do it eventually). USW sent someone out for the "annual checkup"... over 2 years after the install. It's a good thing they (eventually) did, because they discovered the backup battery wasn't charging. Now I know to check this stuff better myself. Prices also vary wildly and are kind of negotiable (I'd give more detail but I'm out of space)"

Andrew D on October 2023

Basement waterproofing and foundation repair company. Family operated since 1957 with over 500,000 dry basements. Free consultations. Lifetime warranties available. Award winning company.

"Good work in general; our basement no longer sees water for over 3 years now, which is the most important thing. But there were some real issues: The biggest issue is that USW did not adhere to local electrical codes, and did not arrange for a final inspection of the project. So we didn't find out that it wasn't to code until years later, and now it's a big hassle and minor cost to fix and get the permits. Ask your local gov yourself what you need to do for permits and inspections; don't rely on USW! USW said they would seal any foundation cracks found along the way; they didn't do this until I bugged the warranty dept about it (but they did do it eventually). USW sent someone out for the "annual checkup"... over 2 years after the install. It's a good thing they (eventually) did, because they discovered the backup battery wasn't charging. Now I know to check this stuff better myself. Prices also vary wildly and are kind of negotiable (I'd give more detail but I'm out of space)"

Andrew D on October 2023


Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.55(
1,156
)
Approved Pro

Perma-Seal Basement Systems

4.55(
1,156
)
Approved Pro
Customers say: Super punctual
929 local quotes requested
46 years of experience

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"Jose and the team did a great job. Very professional and communicative. We're happy with the result and would recommend them."

ELAINE O on September 2025

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"Jose and the team did a great job. Very professional and communicative. We're happy with the result and would recommend them."

ELAINE O on September 2025


Avatar for The Real Seal LLC

The Real Seal LLC

4.98(
224
)
Approved Pro

The Real Seal LLC

4.98(
224
)
Approved Pro
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
245 local quotes requested

2015, 2016, 2017, 2018, 2019, and 2020 Super Service Award Recipient. Do we ever stop?? NO! We are an HONEST Basement Waterproofing and Foundation Repair company with a simple philosophy: Happy Employees Make Happy Customers. Our customer service is second-to-none. Please call our office to schedule an estimate at (847)-769-8240

"Real Seal are very professional. Came out when they said, sent estimate and set up to have work done in a timely matter. The technician sealed two cracks in our foundation crawl space. Did a excellent job and was very friendly and knowledgable. I will be using them again for another crack."

Pat M on December 2024

2015, 2016, 2017, 2018, 2019, and 2020 Super Service Award Recipient. Do we ever stop?? NO! We are an HONEST Basement Waterproofing and Foundation Repair company with a simple philosophy: Happy Employees Make Happy Customers. Our customer service is second-to-none. Please call our office to schedule an estimate at (847)-769-8240

"Real Seal are very professional. Came out when they said, sent estimate and set up to have work done in a timely matter. The technician sealed two cracks in our foundation crawl space. Did a excellent job and was very friendly and knowledgable. I will be using them again for another crack."

Pat M on December 2024


Avatar for AccuLevel Chicago

AccuLevel Chicago

5.00(
1
)

AccuLevel Chicago

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Acculevel is your foundation repair expert, serving Indiana, Illinois, Kentucky, and Ohio and been in business since 1996. Most of our repairs come with a life of the structure warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- possibly the most valuable investment you'll ever make. A dry home is a healthy home. Acculevel is committed to providing the most technologically advanced repairs to help keep your home dry and on a safe foundation. A strong foundation protects your home's structure, lowers utility bills and maintains the value of your property. Check our pictures for the signs & symptoms of foundation & water damage, and then call Acculevel for your free visual inspection. 1-866-669-3349

"Good communication, timely arrival, and work completed with excellence."

Wolali N on June 2024

Acculevel is your foundation repair expert, serving Indiana, Illinois, Kentucky, and Ohio and been in business since 1996. Most of our repairs come with a life of the structure warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- possibly the most valuable investment you'll ever make. A dry home is a healthy home. Acculevel is committed to providing the most technologically advanced repairs to help keep your home dry and on a safe foundation. A strong foundation protects your home's structure, lowers utility bills and maintains the value of your property. Check our pictures for the signs & symptoms of foundation & water damage, and then call Acculevel for your free visual inspection. 1-866-669-3349

"Good communication, timely arrival, and work completed with excellence."

Wolali N on June 2024


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

3.99(
561
)

Roto-Rooter Plumbing & Water Cleanup

3.99(
561
)
Customers say: Quick response
454 local quotes requested

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"They had to come two extra times to fix the work that was done."

Jamal J on April 2025

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"They had to come two extra times to fix the work that was done."

Jamal J on April 2025


"Pedro was amazing! Responsive, prompt, informative, and clean. Highly recommend!"

Mollie L on May 2024

Drain Tile Systems Inside And Outside Foundation Crack Repair Window Wells Sump Pumps Downspout And Discharge Extencion

"Pedro was amazing! Responsive, prompt, informative, and clean. Highly recommend!"

Mollie L on May 2024


Avatar for RK Masonry and Tuckpointing

RK Masonry and Tuckpointing

No reviews yet

RK Masonry and Tuckpointing

No reviews yet
30 years of experience

RK Masonry provides stone & brick masonry services for homeowners of Chicago, Chicago suburbs and NW Indiana. We're experts in foundation repair, porch repair, fireplace installation & refinishing, cultured stone & stone veneer, chimney repair, brick mailboxes, stone mailboxes, masonry pillars, outdoor kitchens & patios, interior masonry accents and refinishing, porch repair and retaining walls. We've been in business over 20 years, and we still love what we do: leveraging the beauty, value and durability of brick and stone for the Chicagoland homeowner. We're owner-operated and family-owned. We have hundreds of happy customers and think you'll appreciate the RKMAT difference, too!

RK Masonry provides stone & brick masonry services for homeowners of Chicago, Chicago suburbs and NW Indiana. We're experts in foundation repair, porch repair, fireplace installation & refinishing, cultured stone & stone veneer, chimney repair, brick mailboxes, stone mailboxes, masonry pillars, outdoor kitchens & patios, interior masonry accents and refinishing, porch repair and retaining walls. We've been in business over 20 years, and we still love what we do: leveraging the beauty, value and durability of brick and stone for the Chicagoland homeowner. We're owner-operated and family-owned. We have hundreds of happy customers and think you'll appreciate the RKMAT difference, too!



Avatar for Area Wide Waterproofing

Area Wide Waterproofing

5.00(
6
)

Area Wide Waterproofing

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a team of experienced waterproofing experts specializing in foundation crack repairs and many other waterproofing needs. Your business and trust is important to us. Our professional team continually exceeds our client's expectations and is ready to serve.

"Fast, quick and clean."

Jeff T on February 2023

We are a team of experienced waterproofing experts specializing in foundation crack repairs and many other waterproofing needs. Your business and trust is important to us. Our professional team continually exceeds our client's expectations and is ready to serve.

"Fast, quick and clean."

Jeff T on February 2023


Avatar for Beyond The Four Walls Construction

Beyond The Four Walls Construction

5.00(
18
)

Beyond The Four Walls Construction

5.00(
18
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family-owned and operated company that brings that attention to detail and care that makes you feel heard, understood, and appreciated as a client. We know how personal your projects are and we respect and honor that. We service both commercial and residential clients. Please feel free to call, email, or send a text so that you can get on our schedule. We offer free estimates and flexible financing with deposit. We look forward to serving you on your next project. All the Best!

"The project went great. They removed a wall and relocated 2 outlets and a light switch. I also had them do several barndoors for my pantry, closet, and utility room."

Erik P on August 2024

We are a family-owned and operated company that brings that attention to detail and care that makes you feel heard, understood, and appreciated as a client. We know how personal your projects are and we respect and honor that. We service both commercial and residential clients. Please feel free to call, email, or send a text so that you can get on our schedule. We offer free estimates and flexible financing with deposit. We look forward to serving you on your next project. All the Best!

"The project went great. They removed a wall and relocated 2 outlets and a light switch. I also had them do several barndoors for my pantry, closet, and utility room."

Erik P on August 2024

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Basement Waterproofing questions, 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.

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

If a crawl space isn’t vented, there can be moisture buildup, which can lead to mold damage, easily destroying the foundation of your home. A closed-off crawl space can trap heat, which can be useful in the winter, but can also trap dangerous gases and prevent clean air from entering the home through the floorboards.

Most people consider a French drain to be one of the most effective solutions for foundation leaks, but it’s not always a standalone solution. French drains will help keep water away from your foundation to reduce the risk of leaking and structural damage from soil expansion, but depending on your foundation type and location, you might need other systems or techniques—like soil gradation and gutter and leader installation—to resolve the underlying problem.

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.

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.