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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon229
    Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Posen, IL

*The Angi rating for Basement Waterproofing companies in Posen, 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 Posen, 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 November 18, 2025

Find Basement waterproofing pros in Posen

Avatar for U.S. Waterproofing

U.S. Waterproofing

4.30(
572
)
•Approved Pro

U.S. Waterproofing

4.30(
572
)
•Approved Pro
Customers say: Super punctual
189 local quotes requested
68 years of experience

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

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
899 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
219 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 Everseal Basement, Inc.

Everseal Basement, Inc.

4.76(
101
)
•Approved Pro

Everseal Basement, Inc.

4.76(
101
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
10 years of experience

Everseal Basement, Inc., specializes in residential and commercial waterproofing. We are locally owned and operated out of Aurora, IL, offering the best prices and quality service. Customer service is our top priority. Call today for your free estimate!

"Ernesto was great. His guys were prompt and professional, job went well from start to finish. Would recommend 100%."

Jeff H on May 2025

Everseal Basement, Inc., specializes in residential and commercial waterproofing. We are locally owned and operated out of Aurora, IL, offering the best prices and quality service. Customer service is our top priority. Call today for your free estimate!

"Ernesto was great. His guys were prompt and professional, job went well from start to finish. Would recommend 100%."

Jeff H on May 2025

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
431 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

Avatar for l&P Basement Waterproofing LLC Bonded and Insured

l&P Basement Waterproofing LLC Bonded and Insured

5.00(
6
)

l&P Basement Waterproofing LLC Bonded and Insured

5.00(
6
)
Customers say: Quick response
Free onsite estimate

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

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!

Waterstop systems inc

No reviews yet

Waterstop systems inc

No reviews yet

A family owned company specializing in residential, commercial and industrial roofing, waterproofing and sealants. Fully licensed, insured and bonded. Diverce staff that is bilingual and ready to start working

A family owned company specializing in residential, commercial and industrial roofing, waterproofing and sealants. Fully licensed, insured and bonded. Diverce staff that is bilingual and ready to start working

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

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Basement Waterproofing questions, answered by experts

It depends on what caused your basement flooding, the extent of the problem, and the risk of the flood continuing. If your flood is coming from a septic system or sewer line, breathing in the sewer gasses can be dangerous, so you should vacate. If the flood occurs from an ongoing natural disaster, relocating to a safe area might be wise. If you just have a plumbing leak or rainwater coming in, you can likely stay in the house if you don’t have electrical lines down there, but make sure you call in professionals to fix the issue immediately.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

Yes, many repair services include reapplying waterproofing and UV-resistant coatings.

It’s not safe to live in a house with water damage until a trained professional gives you the all-clear to return. Mold can grow within one to two days after water damage and weaken your home’s structural integrity. Always have your home inspected after water damage to ensure it’s safe to live in.

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

The Posen, 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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