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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon255
    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 December 10, 2025

Find Basement waterproofing pros in Posen

Avatar for U.S. Waterproofing

U.S. Waterproofing

4.51(
449
)
•Approved Pro

U.S. Waterproofing

4.51(
449
)
•Approved Pro
Customers say: Super punctual
185 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 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
11 local quotes requested

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 Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.43(
1,404
)
•Approved Pro

Perma-Seal Basement Systems

4.43(
1,404
)
•Approved Pro
Customers say: Super punctual
1059 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

4.96(
243
)
•Approved Pro

The Real Seal LLC

4.96(
243
)
•Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
110 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 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

Avatar for Mr D's waterproofing and construction inc.

Mr D's waterproofing and construction inc.

5.00(
3
)

Mr D's waterproofing and construction inc.

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We have over 20 years of combined experience, ex employees of big named brand companies offering the same services, the same material, at a better price. Family owned buisness.

"Well so far so good. Must make sure gutter in area is cleaned out also."

Louie L on October 2019

We have over 20 years of combined experience, ex employees of big named brand companies offering the same services, the same material, at a better price. Family owned buisness.

"Well so far so good. Must make sure gutter in area is cleaned out also."

Louie L on October 2019

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Basement Waterproofing questions, answered by experts

While it’s possible to live in a damp basement, it’s usually not healthy to do so. Damp air affects your breathing, and it also promotes mold growth and pest infestation that can make living in a damp basement dangerous. You should plan to resolve any moisture issues and set up preventative measures before using your basement as a living space.

Sandbags are the most common and efficient way to create a flood barrier at home. Some local authorities pass them around to homes before the risk of a flood. Otherwise, you can use flood-proof house materials, like burlap or woven plastic bags, to make sandbags and fill them with sand or cat litter. Make sure that when you stack them, they’re tightly laid on top of each other, creating the effect of a firm wall against accumulating water.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

Preventing future basement flooding often involves installing sump pumps, improving drainage, sealing foundation cracks, and maintaining gutters. Costs vary, but preventive measures can range from a few hundred to several thousand dollars, depending on the solutions chosen. Investing in prevention can save you money on future flooded basement cleanup costs and repairs.

Mold growth is just one common sign of excess moisture in the bathroom. You may also see the paint in the room start to peel away from the walls, or that the walls remain wet for some time after you bathe.

Condensation on the windows is another sign that your bathroom has a potential moisture problem. The room itself may start to smell like mildew.

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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