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

Avatar for Thrasher, Inc.
Thrasher, Inc.
4.1(
182
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair

Serving Mendon, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"After putting up for years with an uneven driveway, I hired Thrasher to fix it. I was so impressed by the professionalism of both the estimator and the repair crew, and I am very pleased with the results."
Basement Waterproofing Before and After
Concrete Repair Before and After
Thrasher Services
Thrasher Services
Thrasher Services

+12

Response time2 days
902 neighbors recently requested a quote
Recommended by83%of homeowners
Next-Gen Concrete & Construction LLC
4.4(
4
)
Concrete Foundation - RepairConcrete Foundation - RaisePoured Concrete Wall - Repair

Serving Mendon, IL and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

4 neighbors recently requested a quote
Avatar for Crawlspace / Basement Waterproofing Solution
Crawlspace / Basement Waterproofing Solution
4.4(
256
)
Concrete Foundation - RaiseConcrete Foundation - RepairFoundation Drainage - Install or Replace+2 more

Serving Mendon, IL and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"RESPONSIVENESS TO NEEDS
There are different measures of success on any project and different constraints and issues that will challenge those measures.  My primary measure of success was a DRY basement, and Brian?s proposal to deliver it was comprehensive. He was committed to meeting my request while satisfying my second measure of success: do it at an affordable price.

ESTIMATE
Brian does all estimates himself instead of sending out salespeople (which I appreciate).  I scheduled Brian's first visit in the days following a large rainfall that caused flooding in neighboring areas, so his schedule was packed. Understandably, Brian was crunched between appointments when he arrived slightly behind schedule, but he had kept me updated in the hours preceding his arrival.  Brian quickly conveyed a focus on resolving the seepage problem.  He also listened to my concerns, identified primary and secondary issues, and said he would send a thorough e-mail containing precise details for a solution with a cost breakdown.  He arrived and left in about hour, and within a couple days he sent an e-mail estimate with two options. 1) A complete basement drain tile system with crack repairs, or 2) a partial system that he believed would resolve the problem at a lesser cost. He offered to allow me to "upgrade" to the full system in the future and pay the difference between the two estimates. This type of offer was not even discussed by the three other companies (two big names and one small business) that came for estimates.

With the exception of the extended (years-long) payment / financing options offered by the larger companies, Brian?s proposed solution was almost a hands-down winner.  The other small company was comparable, but after sending the initial estimate, Brian offered to return on the weekend to give me the opportunity to talk again when there was more time.  Other companies' approaches to doing exterior excavation ranged from doing minor reinforcement to not even wanting to touch it.  Brian, in contrast, said he can?t honestly guarantee a dry basement when he didn?t know what the previous repair looked like.  He offered to completely excavate the two walls that had work done previously and to replace (if necessary) any inferior quality materials with his own fix.  Now we're cooking with gas!  The cost of the job remained competitive, and this ?extra mile? effort on top of everything else fully satisfied my need to be 100% sure the seepage would be stopped.  I opted for the full drain tile system.

TIME
The timeframe Brian quoted was in line with all of his competitors: 2 days max.  The time element of the job met some challenges, taking 5 full working days to complete, (Tues-Fri plus half days Sat-Sun).  The reason?  The crew found the floor was new, dense 4-inch concrete poured on top of the original 4-inch concrete floor.  This meant twice the work for the breakup crew that was prepared for a conventional job, making it impossible to accommodate the original time frame. Brian promised to never leave a job unfinished, so he juggled his crews' schedules to make daily progress, and he never once raised his price despite the extra time or material (concrete) required. I was very grateful.  He also personally came to finish the job on the weekend rather than pushing it out to Monday or Tuesday.

EXTRAS AND RESPONSIVENESS
Some plumbing in the floor was impacted by the concrete breakup and required repairs due to its age and condition.  Brian took the time to find the exact materials I requested for the repair and installed them.  I was not present at installation so he took photos and video and sent them to me via smartphone so I could verify he got it right.  What other contractor does that?! He also paid attention to every detail for laying out the design of the downspout tie-ins, finishing touches, and every single special request I threw at him. He also spotted an additional leak in the corner of the foundation and sealed it up as well. His commitment to resolving every issue to my satisfaction was outstanding.

Brian made himself accessible via phone, e-mail and text, and he responded quickly to inquiries.  I wanted to know every detail of the work, and Brian accommodated. Another totally unexpected surprise came when Brian discovered that some of the promised work did not need to be performed, and he provided credit for this instead of using the difference for my extra requests.

SATISFACTION
"You'll be happy," is Brian's mantra.  He addressed a couple gripes - dust exposure to the first floor space; a few trampled plants outside - by providing equitable financial credits.  These professional oversights on his crew's part are unacceptable to Brian, and credit on the final bill was all he could do to make up for it.  Overall, the crew was polite, and one even brought a stack of extra floor tiles from his personal supply to replace some I'd lost during demolition work I had done weeks earlier!

From start to finish, despite delays and minor shortcomings, Brian executed on the proposed project by 100% nailing the two most important measures of success ? quality and cost. As for timing, the job ran long but Brian didn't quit until the job was done. I never expect perfection; nevertheless, Brian aimed to earn my satisfaction as his primary goal. I give an A+ on nearly every category, taking a point or two away for the issues mentioned.

Rain is coming in the next two days, and I'll only edit this review if the repairs fail to deliver a dry basement.  I am posting this review before the rain comes as a vote of confidence that I won't have to change a word.

The most important criterion to assess a job well done is whether you'd recommend a service provider to a family member or friend.  In Brian's case, I absolutely would."
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+13

Recommended by90%of homeowners
Avatar for AOM Remodeling and Restoration
AOM Remodeling and Restoration
4.6(
52
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Mendon, IL and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"David gave me what I thought was a fair price for the work to be done. He asked for 1/2 up front. As a previous small business owner I did not feel this was unreasonable so I paid him 500.00. He estimated the work would take 3 to four days and I thought the same. After several no shows the "mason" showed up. The first clue was he came in a car. According to my wife he was here 2 hours and left, came back for another 2 hours the next day and left again. He said nothing to my wife about leaving or when he would be back. David called a day later to ask about coming out to look over the job and get the rest of the other 500.00. I said he isn't finished and he's only been here 4 hours. So then I looked up the prevailing wage in IL for a mason and found out it is 28.50 an hour. The next day the guy comes back for another 3 hours. David came to look at the work and I walked him around and showed him all of the places that had not been done. So the guy comes back again for about an hour. All told it was 8 hours work, nothing to write home about but it was agreed up front that I wasn't looking for an exposed brick look. I need it tuck pointed well enough so that I could drylock and paint the exposed brick. I will say this was done in the end. The worker left a mess that I and my wife had to clean up, I pointed this out to David as well. I told him I felt he was overly paid for the amount of work preformed and that was the end of it. It's really to bad. It's difficult to get contractors to do small jobs and I had plenty for him to do. I'm not unhappy, just would not hire again"
Kitchen accent
picture 1
picture 2
tan and white trim room
blue and white trim room

+5

Recommended by90%of homeowners
Agape Construction & Improvement
4.0(
60
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / EncapsulationPoured Concrete Wall - Repair

Serving Mendon, IL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Mike came when he said he would and repaired a hole in the roof of my barn. It was a difficult job that took
two days. Mike did an excellent job and I would recommend him to any one who needs roof work.
"
Additional Photos
Additional Photos
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the home owners are very happy!
all done!!

+1

Recommended by90%of homeowners
Roundcount Dozing & Excavating
5.0(
6
)
Foundation Drainage - Install or Replace

Serving Mendon, IL and surrounding areas

In business since 2016

Free estimates

Offers commercial services

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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.

Response time1 day
Recommended by80%of homeowners
Avatar for Green Earth Enterprises Inc
Green Earth Enterprises Inc
4.7(
7
)
Poured Concrete Wall - Repair

Serving Mendon, IL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I hired the company to do a make ready [clean up & prep] on a single apartment in a building which I own in the  town where I live. I needed the property to be cleaned up so I could rent it again.  I have been a landlord for over 20 years & hadn't found a vacated property in such a mess in all my years. They did the complete interior clean-up which took about five hours. And, the complete prep of the property. they took out all the trash & junk, and cleaned up all debris left in the yard. They did such a great job with that I decided to use them for the yard maintenance also. They cleaned all my flowerbeds & got them ready for spring, placed mulch & trimmed the shrubs and flowering trees. On the inside they made everything look brand new! Cleaning the walls, painting, cleaned the carpets & stripped & polished the wood floors...making them look brand new. The appliances that stayed were cleaned inside & out. They even remembered to get all the light fixtures clean for me. Dusted all window seals & doorways. Shine mopped all they tile floors. To top it all off they even gave the bathrooms a fresh clean look by putting a new caulk seal around the tubs, sinks & shower...which gave the bathrooms a fresh face. All in all I found it to be a very stress free pleasant experience. And, I will definitely call on them for the next project because if they could do so well with a nightmare like that I'm sure the less difficult will be equally affordable and easily handled. Everything just looked so nice when they were finished. Thanks, Green Earth
"
Recommended by71%of homeowners
Avatar for American Custom Homes
American Custom Homes
5.0(
3
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / EncapsulationPoured Concrete Wall - Repair

Serving Mendon, IL and surrounding areas

In business since 2000

Emergency services offered

Credit card accepted

Welcome!\n \nAt American Custom Homes, our goal is not only help you design and build your dream bathroom, kitchen, basement or even add you a new room addition, but also making the process easy and enjoyable for you. We are a full-service design/build company with a wide range of experience. We can help you with all phases of a new bathroom or kitchen or basement or even complete remodeling. Build in steam showers, custom tile design, custom paints, and custom floors and so on... \nOur excellent reputation and long list of satisfied clients attest to our superior craftsmanship, attention to detail, clear communication, honesty and integrity. Just ask for our client reference list.\n \nLet's discuss your ideas! Your free consultation is just a phone call away.

Stone Travertine
12x6 Travertine hand cut
Complete Steamer
Recommended by100%of homeowners
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Foundation Repair FAQs, answered by experts

The actual foundation repair costs will depend on the extent of the damage, how many blocks you need, labor costs, and material costs. As an estimate, the average repair costs for a cinder block foundation fall between $350 and $25,000. Because the range is so large, it’s important to call a professional foundation repair company and have them assess the damage and estimate the repair costs.

Foundation repair costs $250 for a minor crack that doesn’t affect the structure’s integrity, although it can cost as much as $800 if it’s a major crack. Call a pro to get it fixed as soon as possible if your crack is bigger than 1/8 inch wide. Additionally, if you need to seal the foundation to fix leaks, it can cost approximately $2,000 to $7,000.

Most of the time, normal foundation settling will present as thin cracks in the foundation and minor creaks in the floorboards. In contrast, you can identify foundation issues by wide or uneven foundation cracks, horizontal or step-shaped gaps on the foundation wall, or cracks that go around corners of your foundation. Foundation problems can also cause changes in your living area, like increased humidity, uneven or sloping floors, nail pops in drywall, countertops pulling away from the wall, and windows and doors getting stuck. When in doubt, call in a professional to identify the underlying cause.

The average cost to repair a concrete driveway ranges from approximately $830 to $2,800, with a typical project costing around $1,765. The price varies widely depending on the type and extent of the damage. Minor crack repairs can be as low as $0.10 to $0.15 per linear foot and may be a DIY project. More significant repairs are priced per square foot: replacing a damaged slab costs about $6 to $14, while raising or leveling sunken concrete costs $3 to $25. Resurfacing is another option, costing around $3 to $5 per square foot. Factors influencing the total price include the size of the affected area, whether reinforcement is needed, and labor costs.

The average home foundation lasts between 80 and 100 years, but some can last much longer with proper maintenance and routine inspections. The lifespan depends on the foundation type, soil conditions, climate, and construction quality. Poured concrete walls can last up to 200 years, brick or stone foundations over 100 years, cement block foundations 80 to 100 years, and pier foundations about 75 years. Factors that can shorten a foundation's life include expansive clay soil, poor weather conditions, low-quality building materials, improper construction, and tree roots. Signs of damage include sloping floors, bowing walls, cracks, and doors or windows that stick.

The Mendon, IL homeowners’ guide to foundation repairs

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