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TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon23
    Verified house leveling services reviews

Top-Rated House leveling pros in Cortland - Updated Nov 2026

Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,538
)
Concrete Foundation - RepairConcrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business+1 more

Serving Cortland, 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 U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)
Concrete - Injection Leveling - Mudjacking

Serving Cortland, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"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)"
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
14 neighbors recently requested a quote
Avatar for AccuLevel, Inc. - Northern Illinois
AccuLevel, Inc. - Northern Illinois
3.9(
215
)
Concrete Foundation - RepairConcrete Foundation - Raise

Serving Cortland, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"As far as I know the work is good. I haven t been under the house to look yet. I m waiting for it to dry out and warm up. But I can tell from the inside of the house that my floor is more solid and I have less cold air entering my home from the insulating they did. Workers were nice and courteous. I do feel like if I have a problem that they will address it honorably."
Wall Anchors
Exterior Foundation Repair
Bowed Wall Foundation Repair AFTER
Horizontal Wall Crack BEFORE
Exterior Wall Anchors

+31

Response time4 days
55 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Klock Home Services
Klock Home Services
New to Angi
Concrete Foundation - Repair

Serving Cortland, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hi, I’m Kevin with Klock Home Services, proudly serving the Fox Valley area. I provide reliable, detail-oriented handyman and home repair services at fair prices. From furniture and drywall repair to minor carpentry, fixture installs, and general maintenance, I treat every project like it’s in my own home. Whether it’s a small fix or a larger task, you can count on quality work done right the first time.

Avatar for Huber Construction
Huber Construction
5.0(
5
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For BusinessFind a Custom Home Builder

Serving Cortland, IL and surrounding areas

Free estimates

Emergency services offered

"Chris Huber supervised the crew that build a sunroom on the back of our townhouse. We had a very good experience working with him and he was an excellent communicator. He wanted us to be completely happy with the addition to our home, and we definitely were. ."
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+22

Recommended by100%of homeowners
Trendy Builders & Remodeling Co
5.0(
4
)
Find a Custom Home Builder

Serving Cortland, IL and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Quality windows were installed in my garage. Contractor matched the exterior painting perfectly. He fixed the bannister and wood planks on my deck using like kind and quality materials. He also secured a soffit where wasps had entry to my attic. He tiled areas in my lower level that required new tile after a drain tile contractor did their work. In addition to tile work that needed to be done he replaced the base boards. His work was professional and he went to all lengths to perform quality work with quality product. This work was done over the course of a few months, approximately, March through July 2019"
Additional Photos
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Recommended by100%of homeowners
Avatar for Kirt Johnson Construction
Kirt Johnson Construction
3.8(
45
)
Find a Custom Home Builder

Serving Cortland, IL and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"Kirt gave us an estimate that was much more reasonable than another we had gotten so we decided to have him do the work.  We are very glad that we did!  He and Shawn were great to work with and the subcontractors that he chose were very good also.  The new front stoop was completed first and that is beautiful.  Kirt and Shawn tore out the closet and built a new header wall in a few hours which really opened up our interior space.  The front door and one of the windows presented some unexpected challenges but they were able to find solutions easily.  Building the roof over the front door was more complicated of course, and that took about a week to complete, but they kept us in the loop the entire time - telling us what they were doing and why they were doing it and asking our opinion every step of the way. They pay a lot of attention to detail. It turned out great!  We love our "new" house and we would definitely use Kirt Johnson Construction again."
Additional Photos
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Backsplash/cabinets/sink

+3

Recommended by85%of homeowners
Professional Roofing & construction services - Home Facebook
5.0(
3
)
Find a Custom Home Builder

Serving Cortland, IL and surrounding areas

In business since 2000

Free estimates

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of general contractor home improvement services that are customizable to each individual project. We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other 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 and guarantee your satisfaction!

Dental office
Kitchen
Winfiel IL Modern Kitchen
Kitchen
Response time2 days
Recommended by100%of homeowners
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House Leveling FAQs, answered by experts

A slurry of cement, sand, and water is injected beneath the concrete to lift and stabilize it.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.

The method involves lifting settled concrete using pressurized cement slurry via drilled holes. This solves uneven surfaces and prevents further settling.

Mudjacking can be an expensive foundation repair process, but in many cases, it’s well worth the investment. This is especially true if you’re lifting a portion of sunken foundation slab back into place. In that case, mudjacking can help avoid major structural damage and even home collapse by restoring the integrity of your structure with minimally invasive procedures. Mudjacking a concrete patio, walkway, or sidewalk can be worthwhile because it removes tripping hazards and makes your outdoor area more aesthetically appealing.

The Cortland, IL homeowners’ guide to house leveling services

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