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  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon134
    Verified foundation repairs reviews

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

Avatar for Atlas Restoration LLC
Atlas Restoration LLC
4.6(
205
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Algonquin, 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%
10 neighbors recently requested a quote
Avatar for The Real Seal LLC
The Real Seal LLC
5.0(
252
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairFoundation Drainage - Install or Replace+1 more

Serving Algonquin, 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
249 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for LA Basement Waterproofing and Foundation Repair
LA Basement Waterproofing and Foundation Repair
5.0(
23
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Algonquin, IL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

We're a locally owned and operated company with several years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in Basement Waterproofing work and a variety of related service and repair projects. 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!

Response time5 hrs
Response rate85%
Recommended by100%of homeowners
Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Algonquin, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"If I had not had that put in, I would have been flooded a couple of weeks ago when we had water drainage here. I didn't compare the price to anything. I didn't take any other prices, so I don't know if that was a good price or not. It seems to be fine. It hasn't been in very long, but the sump pump works great. They were here right away. They did the work just like they said they would do it, in the time they said they would do it. Their work is guaranteed, so if something were to go wrong, I could call them and they would fix it."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
15 neighbors recently requested a quote
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,537
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairConcrete Foundation - Raise+1 more

Serving Algonquin, 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
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairFoundation Drainage - Install or Replace+1 more

Serving Algonquin, 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
33 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Everseal Basement, Inc.
Everseal Basement, Inc.
4.5(
130
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Algonquin, IL and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Everseal did a great job and cleaned up as best as possible after having 14 cracks fixed. It was a little hard initially to get the appointment scheduled but after that everything was ok. Probable because pretty busy lots of water so far this season. No leaks yet however only be a day."
Response time1 day
Response rate88%
4 neighbors recently requested a quote
Avatar for Best Solutions Basement Repairs & Waterproofing
Best Solutions Basement Repairs & Waterproofing
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Algonquin, 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
8 neighbors recently requested a quote
Avatar for Fern's Landscaping & Design
Fern's Landscaping & Design
4.5(
39
)
Foundation Drainage - Install or Replace

Serving Algonquin, IL and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Brian and his crew did great work installing our new sod and repairing our pavers. The work was done professionally and on time. I would recommend them and would use them again."
Aurora's project
Batavia's project
front yard renovation
front yard renovation
Plant design

+36

Response time1 day
31 neighbors recently requested a quote
Recommended by73%of homeowners
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Showing 1-10 of 242
Foundation Repair FAQs, answered by experts

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.

You'll find a slurry of natural and synthetic polymers, rubbers, epoxies, and resins used to bond old concrete to new concrete. The right bonding agent depends on the method of concrete pouring you choose and whether you're adhering concrete over concrete or concrete over sand and gravel. Some concrete resurfacing mixtures contain bonding chemicals as well.

Foundation repairs cost about $5,000, on average. Typically, prices range from $2,200 to $7,800, depending on the type and extent of repairs needed. Cost factors include foundation type, home size, soil stability, accessibility, and the ultimate cause of the problem and what methods and materials are required to fix it.

If improperly installed, an egress window can compromise your foundation’s structural integrity, so it’s important to work with a pro to ensure your foundation remains in good shape. Any money you may save on a DIY egress window installation may cost you in the long run if your foundation is damaged in the process.

Not all cracks in brick indicate foundation problems. For instance, small hairline cracks can occur as a new construction settles. However, larger cracks are often a sign of a more severe issue. Indicators of a potential foundation problem include long horizontal cracks, "stair-step" cracks, vertical cracks that appear indoors, or any crack that widens at the top. Other signs of structural damage to look for are uneven floors and doors or windows that stick. These issues could be caused by problems with the soil beneath the home or an overgrown tree.

The Algonquin, IL homeowners’ guide to foundation repairs

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