Basement Waterproofing & Foundation Repair Chicago

25+ Years Serving
Chicagoland

A-Proseal branded work truck and crew on a job site in Chicagoland

Family Owned Since 2000

Basement Waterproofing and Foundation Repair Done Right

A-Proseal is a family-owned company based in the Chicagoland area. We have been fixing wet basements and damaged foundations since 2000. Every job is done by our own trained crew, not subcontractors.

A wet basement or a cracked foundation can get much worse over time. Water damage leads to mold. Foundation cracks can grow. The sooner you call, the less it costs to fix. We give you an honest look at the problem and a clear price before any work starts.

We are fully licensed and insured. We are proud members of the Better Business Bureau. And we back every job with a 100% satisfaction guarantee.

25+ Years in Chicago

100% Satisfaction Guarantee

5.0 Google Rating

Request a Free Inspection

Free Basement
Risk Assessment

Answer 5 quick questions to find out if your basement needs attention.

30 sec To complete

5 Questions

Free Always

Question 1 of 5

Do you see water, dampness, or stains on your basement walls or floor?

Have you noticed any cracks in your foundation walls or basement floor?

Does your basement have a musty smell or signs of mold?

How old is your home?

Do you have a working sump pump in your basement?

What We Do

Our Basement and Foundation Services

See All Services

Basement Waterproofing

We stop water from getting in. Our drain tile systems, crack repairs, and moisture control keep your basement dry for good. No more wet floors or water stains.

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Foundation Repair

Clay soil and freezing winters are hard on foundations here. We fix cracks, bowing walls, and settlement problems using crack injection, wall bracing, and helical piers.

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A-Proseal crew leveling a concrete driveway with polyurethane foam

Concrete Leveling

Uneven driveways, sidewalks, and patios are a trip hazard. We use polyurethane foam to lift and level sunken concrete in a few hours at a much lower cost than full replacement.

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Window well installation on Chicago home exterior

Window Wells

A leaking window well can flood your basement fast. We install, repair, and replace window wells with proper drainage so you get light without the water damage.

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Sump pump installed in basement sump pit

Sump Pumps

A good sump pump is your last line of defense against flooding. We install primary pumps, battery backups, and water-powered systems that keep running even when the power goes out.

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Crawl Space Encapsulation

A damp crawl space causes mold, bad air quality, and higher energy bills. We seal it tight with a vapor barrier, drainage system, and dehumidifier so you can breathe easy.

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Foundation Crack Repair

Even a small crack can let in gallons of water over time. We use epoxy and polyurethane injection to fill cracks from the inside, restoring the wall and stopping leaks for good.

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A-Proseal crew installing steel piers for foundation underpinning

Underpinning Systems

If your foundation is sinking or shifting, underpinning gives it permanent support. We install helical piers and push piers that go deep into stable soil and stop further movement.

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Exterior foundation waterproofing on a home

Exterior Foundation Repair

Sometimes the best fix is done from the outside. We excavate, repair cracks, apply waterproof coatings, and add drainage to keep water away from your foundation before it gets inside.

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Where We Work

Serving Chicago and All Surrounding Suburbs

We cover the whole Chicagoland area. If you have a wet basement or a cracked foundation, we can come out the same day you call. No matter which part of the metro you are in, we have you covered.

Cook County Chicago, Evanston, Skokie, Oak Park, Berwyn

DuPage County Naperville, Wheaton, Downers Grove, Elmhurst

Lake County Waukegan, Wauconda, Libertyville, Lake Zurich

Will County Joliet, Bolingbrook, Romeoville, Plainfield

Kane County Aurora, Elgin, St. Charles, Geneva

McHenry County Crystal Lake, Algonquin, Woodstock, Cary

Check If We Serve Your Area

Chicago suburban home protected by A-Proseal basement waterproofing

Same-Day Estimates, No Obligation

Call (847) 525-7394

Simple and Clear

How It Works

Get Started Today

Step One

We Come Out to Look

Call or fill out the form and we will set up a free visit. We look at your basement or foundation, explain what we find, and give you a written quote. No cost and no strings attached.

Step Two

We Walk You Through the Plan

One of our advisors sits down with you and explains the fix in plain language. We answer your questions, go over the price, and talk about financing if you need it. No pressure.

Step Three

We Get the Job Done Right

Our own crew shows up on time and gets to work. We clean up when we are done and walk you through everything we did. You get a full warranty and a dry, stable home.

Real Reviews from Real Neighbors

What Chicago Homeowners Say About Us

5.0

100+ Reviews

Google Verified

★★★★★

"A-Proseal did a fantastic job. The crew came out the same day, explained everything clearly, and the work was done right. My basement has been dry ever since. Highly recommend them to anyone in the Chicago area."

Roger Giza

Google Review · Chicago, IL

Verified

★★★★★

"I called A-Proseal after my basement flooded during a heavy rain. They came out immediately, assessed the problem, and fixed it fast. Professional, clean, and fair pricing. I could not be happier with the results."

Lisa Callahan

Google Review · Lake County, IL

Verified

★★★★★

"The team did a great job. They were on time, worked clean, and were very respectful of my home. I would not think twice about calling them again or telling a friend to use A-Proseal."

Deidre Wassilak

Google Review · Cook County, IL

Verified

★★★★★

"A-Proseal was great to work with from start to finish. They showed up when they said, did the job right, and the price was fair. The crew was kind and professional. I could not be more pleased."

Anne Groh Beckman

Google Review · DuPage County, IL

Verified

Basement Waterproofing and Foundation Repair in Chicago

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