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Top-Rated Foundation repair specialists in Union - Updated Nov 2026

Avatar for Atlas Restoration LLC
Atlas Restoration LLC
4.6(
205
)
Concrete Foundation - Repair

Serving Union, IL and surrounding areas

Approved

In business since 1979

Free estimates

Warranties offered

"The estimator (Kaz) was prompt, informative, and responsive to my many queries before I signed a contract. The project manager and workers were all very prompt, professional, and courteous. They were respectful of our property and that of our neighbors, taking off their shoes when inside and cleaning up their work. I asked them to run an additional line from one of my downspouts, which was done without incident. We also worked together to problem solve an issue related to the sump discharge line. On day 1, they cut our buried cable line because it was marked incorrectly. However, the foreman called the company and it was resolved/fixed within a few hours (it has taken more than a day in the past when I’ve called!). I was quite surprised at how they cleaned up after excavating for the 6 inch drainage pipes. They estimated 5 days to complete the work and finished in 3 days. While I was not excited to spend that much to fix the problem, we knew we needed to address the improper drainage. Additionally, while I feel that I know what needed to be done and probably could have done so myself for less money, it would have taken me 3 months, not 3 days with my schedule. Overall, I’ve been pleased with the work and may have them come back and address an additional drainage issue in our yard in the future."
Sump Pump Installation
Foundation Repair
Crawl Space Encapsulation
Sump Pump Installation
Crawl Space Encapsulation

+17

Response time12 hrs
Response rate100%
16 neighbors recently requested a quote
Avatar for The Real Seal LLC
The Real Seal LLC
5.0(
252
)
Concrete Foundation - Repair

Serving Union, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"We were getting some water in our basement, which The Real Seal determined was coming from a crack in the foundation. They identified and repaired the crack quickly. Our technician worked neatly and efficiently, and all staff were pleasant and responsive throughout the process."
Before and After Crack Repair
I Beam Supports
Polyjacking in Darien
Our Carbon Fiber Straps Repair Before, During, and After
Crack repaired with Carbon Fiber Staples

+39

Response time10 hrs
232 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,540
)
Concrete Foundation - Repair

Serving Union, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"I'm proud to hear my son, Robert Wolfrum, is working for Perma-Seal. I first used Perma-Seal in the 80's for a foundation crack repair in our South Holland, IL home and then again at our Tinley Park, IL home. Both experiences were memorable and professional and fixed our basement water problems. It is good to know that my son is working for a reputable company that has been doing quality work for decades. I was surprised to hear that they do insulation and concrete leveling."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
47 neighbors recently requested a quote
Avatar for The Real Seal, LLC
The Real Seal, LLC
4.5(
38
)
Concrete Foundation - Repair

Serving Union, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"The worker who came over saw my situation and unoffically suggested a repair that would be cheap for me rather than have him and his crew come out and charge me a few thousand. I appreciated that he wanted what was best for me and not necessarily best for his company."
 Interior Foundation Crack Repair
Exterior Drain Tile System
 PHCC 1730 Battery Backup System w/ 1033 sump pump
 Interior Foundation Crack Repair
Cut-out of Interior Drain Tile System

+74

Response time10 hrs
27 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)

Serving Union, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"Called company on Monday and got an appointment for an inspection on Wednesday. That following Monday, the technician arrived and went through each step is sealing off the concrete foundation to the water leak. The fix worked well and was put to the test with the recent record rains. Not one drop of water came into the basement."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
17 neighbors recently requested a quote
Avatar for Everseal Basement, Inc.
Everseal Basement, Inc.
4.5(
130
)

Serving Union, IL and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Very knowledgeable and did a fantastic job. Very polite and the owner Ernesto is very knowledgeable. I would highly recommend them to anyone who has a water leak in the foundation or needs a new sump pump."
Response time1 day
Response rate88%
4 neighbors recently requested a quote
Avatar for AccuLevel, Inc. - Northern Illinois
AccuLevel, Inc. - Northern Illinois
3.9(
215
)
Concrete Foundation - Repair

Serving Union, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"This company is top notch. They fixed my sagging floor and it now looks beautiful. My house was built n 1902 and can be a challenge at times to work on. They were professional and did the job in less time then they original thought. I am so very pleased with their work. I would hire them again in a minute for any foundation and floor leveling needs. Thank\ you Acculevel!!!!!"
Wall Anchors
Exterior Foundation Repair
Bowed Wall Foundation Repair AFTER
Horizontal Wall Crack BEFORE
Exterior Wall Anchors

+31

Response time4 days
87 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,299
)

Serving Union, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"on time, and knowledgeable the technician did the job well. Also, I had a problem changing the furnace filter. The filter was getting stuck when taking it out or installing. He repaired that too."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Best Solutions Basement Repairs & Waterproofing
Best Solutions Basement Repairs & Waterproofing
5.0(
5
)

Serving Union, IL and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

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.

before
after picture
Response time2 days
5 neighbors recently requested a quote
Avatar for Daybreaker, Inc.
Daybreaker, Inc.
4.2(
18
)

Serving Union, IL and surrounding areas

Approved

In business since 2002

Warranties offered

Credit card accepted

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. We offer a variety of lawn care and landscaping services that are customizable to each individual property. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction! \n

Before 1
Before 2
Sidewalk 1
Sidewalk 2
Rear sidewalk/patio

+54

Response time4 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
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