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    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Oswego

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
15 years of experience

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 Ulb-Dry Waterproofing Inc

Ulb-Dry Waterproofing Inc

4.93(
98
)
Approved Pro

Ulb-Dry Waterproofing Inc

4.93(
98
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
15 years of experience

With over 25 years experience in all facets of both residential and commercial foundation waterproofing we have developed a reputation as the waterproofer's waterproofer. All work is performed by our own trained technicians and is with unconditional warranty. We use a line of green products. Our technicians are trained to treat your home as if it is their own. Our estimators are trained to prescribe only the repair designed for your individual problem. We will never try to up-sell to a higher-dollar job.

"Very impressive team. They accomplished everything required Very quickly with minimal intrusion. Very polite and professional."

Greg R on July 2025

With over 25 years experience in all facets of both residential and commercial foundation waterproofing we have developed a reputation as the waterproofer's waterproofer. All work is performed by our own trained technicians and is with unconditional warranty. We use a line of green products. Our technicians are trained to treat your home as if it is their own. Our estimators are trained to prescribe only the repair designed for your individual problem. We will never try to up-sell to a higher-dollar job.

"Very impressive team. They accomplished everything required Very quickly with minimal intrusion. Very polite and professional."

Greg R on July 2025


"Excellent honest work!"

Nick O on August 2024

Structural Design Corporation (SDC) is a licensed consulting engineering firm located in Libertyville, Illinois. We have been providing engineering & inspection services since 1979. We are a licensed design firm in the state of Illinois.

"Excellent honest work!"

Nick O on August 2024


Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.42(
1,405
)
Approved Pro

Perma-Seal Basement Systems

4.42(
1,405
)
Approved Pro
Customers say: Super punctual
47 years of experience
Free onsite estimate

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.

"I have hired Permaseal to fix my unleveled patio concrete floor that was and still causing rain water to get to my basement, I have paid them $2,014.33 as down payment, they showed up one month later for the job, which is injecting foam under the concrete slab to lift it back to its original correct level. I came back home that day to find out that they have left and that the concrete slab was not only still unleveled, but they cracked it and patched it on multiple locations. I have called their customer care number more than a dozen times in attempt to understand what is going on, and on each occasion, I was told that the project manager was going to contact me back, which never happened until i made the next call, They have finally explained to me over the phone that it was the best they could do and that they could not fix my patio floor. I asked for a refund and did not hear back. I have documented pictures of before and after showing that the job was not done and cancelled the check with the remaining balance. I have not heard anything back from them since then, until i started getting debt collectors' emails on December the 5th from a business called FCR Services."

Sami M on December 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.

"I have hired Permaseal to fix my unleveled patio concrete floor that was and still causing rain water to get to my basement, I have paid them $2,014.33 as down payment, they showed up one month later for the job, which is injecting foam under the concrete slab to lift it back to its original correct level. I came back home that day to find out that they have left and that the concrete slab was not only still unleveled, but they cracked it and patched it on multiple locations. I have called their customer care number more than a dozen times in attempt to understand what is going on, and on each occasion, I was told that the project manager was going to contact me back, which never happened until i made the next call, They have finally explained to me over the phone that it was the best they could do and that they could not fix my patio floor. I asked for a refund and did not hear back. I have documented pictures of before and after showing that the job was not done and cancelled the check with the remaining balance. I have not heard anything back from them since then, until i started getting debt collectors' emails on December the 5th from a business called FCR Services."

Sami M on December 2025


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 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


"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 The Real Seal, LLC

The Real Seal, LLC

4.67(
35
)
Approved Pro

The Real Seal, LLC

4.67(
35
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
15 years of experience

The Real Seal is a Next Generation company committed to bring customer service back to the industry. We specialize in keeping you Basement Dry and, quite importantly, customer service. We never leave a customer unsatisfied. From speaking with our office, to the evaluation by a Certified Waterproofing Specialist, through the work performed by our technicians and crews, we keep your satisfaction and health of your home our top priority.

"crew was great"

Sean H on April 2025

The Real Seal is a Next Generation company committed to bring customer service back to the industry. We specialize in keeping you Basement Dry and, quite importantly, customer service. We never leave a customer unsatisfied. From speaking with our office, to the evaluation by a Certified Waterproofing Specialist, through the work performed by our technicians and crews, we keep your satisfaction and health of your home our top priority.

"crew was great"

Sean H on April 2025


Avatar for AccuLevel, Inc. - Rochelle

AccuLevel, Inc. - Rochelle

4.43(
168
)
Approved Pro

AccuLevel, Inc. - Rochelle

4.43(
168
)
Approved Pro
Customers say: Quality work
30 years of experience
Free onsite estimate

Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime 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-- the most valuable investment you'll ever make.

"The job got completed but it wasn’t repaired the way it was originally quoted. The financing offers they had were very helpful to budget for this project. "

Doug H on December 2025

Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime 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-- the most valuable investment you'll ever make.

"The job got completed but it wasn’t repaired the way it was originally quoted. The financing offers they had were very helpful to budget for this project. "

Doug H on December 2025


My Property Masters

4.30(
154
)
Approved Pro

My Property Masters

4.30(
154
)
Approved Pro
Customers say: True professional
18 years of experience
Emergency services offered

My Property Masters Inc, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and responsibility in all of our jobs. We are a locally owned and operated business with more than 10 years of experience serving Northlake and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"Pipe broke and the whole kitchen had to be torn down to the studs and completely rebuilt. Installed new sound deading insulation new cabinets counter tops sink and faucet Plus installed new floor and snd trim They did a beautiful job and I will hire them again . They also cleaned up great "

Craig J on December 2025

My Property Masters Inc, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and responsibility in all of our jobs. We are a locally owned and operated business with more than 10 years of experience serving Northlake and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

"Pipe broke and the whole kitchen had to be torn down to the studs and completely rebuilt. Installed new sound deading insulation new cabinets counter tops sink and faucet Plus installed new floor and snd trim They did a beautiful job and I will hire them again . They also cleaned up great "

Craig J on December 2025


Avatar for Best Solutions Basement Repairs & Waterproofing

Best Solutions Basement Repairs & Waterproofing

5.00(
5
)
Approved Pro

Best Solutions Basement Repairs & Waterproofing

5.00(
5
)
Approved Pro
4 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Basement Waterproofing questions, answered by experts

Water leakage through window openings is much more common in older homes, but it can also create issues with window frames that are improperly installed. If left unattended, water buildup can cause damage to surrounding fixtures, lead to harmful mold, and compromise the architectural integrity of your home. The potential damage that a water leak poses makes investing in weather- and water-proofing your window frames entirely worthwhile.

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

Typically, waterproofing a basement should last up to 10 years. However, it’s worth noting that with proper maintenance and depending on the waterproofing method and installation quality, you can probably squeeze another decade out of it.

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.

If there is standing liquid on your concrete, remove it before attempting any of the above cleaning methods. For small amounts of water, use rags, a bucket, and a mop. For larger areas of liquid, lay down cat litter or baking soda to soak up the water first. If you have extremely large pools of water sitting on your concrete, break out the wet vac and get to work.

The Oswego, IL homeowners’ guide to basement waterproofing services

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

What do you need done? We’ll find top pros.
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