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  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon89
    Verified house leveling services reviews

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Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,521
)
Concrete - Injection Leveling - MudjackingConcrete Foundation - RepairConcrete - Injection Leveling - Mudjacking - For Business+1 more

Serving Flossmoor, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"I had my preventative maintenance appointment with Jim Ballard and he was great! I had a few questions about several services that PS offers and Jim thoroughly went over everything with me. I will definitely be booking an appointment again for poly leveling when the weather allows and have full trust that everyone I deal with will be just as great as Jim was!"
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
55 neighbors recently requested a quote
Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
597
)
Concrete - Injection Leveling - Mudjacking

Serving Flossmoor, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"Crew arrived on time and worked efficiently. As the project progressed, 2 foundation cracks were discovered which added $900 to the original estimate. Old insulation along foundation wall was removed and replaced with silvery foam sheets. Joints were taped. Some leveling of the floor was done. Sheets were laid over the gravel floor also (crawlspace is not used for storage). 2 window well covers were installed. Our main goal was to have a warmer floor in the room above. We haven't noticed a major improvement yet."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
28 neighbors recently requested a quote
Avatar for The Real Seal LLC
The Real Seal LLC
5.0(
252
)
Concrete - Injection Leveling - MudjackingConcrete Foundation - RepairConcrete Foundation - Raise

Serving Flossmoor, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"RealSeal installed new drainage tiles and a sump pump in my approx. 950 sq. ft. basement. They also installed a tough waterproof membrane around that periphery. In order to do this, they had to cut out the bottom 2-4 ft of the drywall and studs in 2 rooms down there, and dispose of the debris. The ONLY reason I'm not giving them 100% on quality is that, while replacing the cement and rebuilding the slab for my laundry tub, they did not make the slab level, which has resulted in adjustments that are difficult to make, as my laundry tub is extremely heavy and difficult to nudge. Other than the problem with the slab, the workers were professional in their manner, and it appears that RealSeal has equipped them with very good gear and conditions; they seemed to actually enjoy their work. Jose, the foreman, was extremely helpful in answering all of my questions. And Dan, the salesman, was also great in answering my many, many questions. The video on RealSeal's website was a good resource for me in envisioning the project. I would definitely recommend RealSeal to others."
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
353 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Atlas Restoration LLC
Atlas Restoration LLC
4.6(
205
)
Concrete Foundation - RepairConcrete Foundation - Raise

Serving Flossmoor, IL and surrounding areas

Approved

In business since 1979

Free estimates

Warranties offered

"We did not have the work done. We will monitor the situation to see if the front of the house sinks more. In the meantime, we will patch the cracks. I gave their pricing a "C," but I did not do a thorough check of competitive pricing; therefore, considering the helpfulness of Jason, I gave them an overall "A" rating."
Sump Pump Installation
Foundation Repair
Crawl Space Encapsulation
Sump Pump Installation
Crawl Space Encapsulation

+17

Response time12 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for Chicago Basement Systems
Chicago Basement Systems
5.0(
8
)
Concrete Foundation - RepairConcrete Foundation - Raise

Serving Flossmoor, IL and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I needed the sill plate and rim joist replaced, sister in the joist in the front of our house. They had many jobs going on so they brought in a crew Anthony, Jerry and Jose from New Jersey so the could get mine done. Anthony let me know what they were doing as things progressed. He asked me if I had questions as he worked. Everyone in the crew where so considerate. The laid down tarps to walk on so as not to damage my floors and they cleaned up everything and the end of the day. I would recommend Chicago Basement Solutions to anyone who needs work done in their crawl of basement."
Crack Repair Before
Crack Repair After
97 neighbors recently requested a quote
Avatar for Max Construction
Max Construction
4.8(
5
)
Concrete Foundation - Repair

Serving Flossmoor, IL and surrounding areas

Approved

In business since 2015

Free estimates

"I could not be more impressed with Max, his professionalism or the quality of his efforts. He made an appointment for 1:00 and arrived at 12:59, spent a great deal of time examining the MANY issues with our foundation, explained what was going on at ground level and below and gave me options regarding the extent of his work. He answered my many questions and quoted me a price that included more substantial repair work at a lower price than the 4 other contractors who provided estimates. His work was on time, on budget and exceeded my expectations. I highly recommend this company to help protect your home. PS He is a very pleasant young man and extremely easy to work with."
Max Construction
3 neighbors recently requested a quote
Avatar for The Real Seal, LLC
The Real Seal, LLC
4.5(
38
)
Concrete Foundation - RaiseConcrete Foundation - RepairConcrete - Injection Leveling - Mudjacking

Serving Flossmoor, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I had been having water leakage problems into my lower level family room for quite some time. Real Seal correctly diagnosed the problem, quoted a reasonable price, showed up to perform the work per agreed upon date and fixed it permanently. Even with the wet spring this year, I have not had any further water leakage problem. I highly recommend this 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
31 neighbors recently requested a quote
Recommended by94%of homeowners
The Civic Architectural Group, Inc.
5.0(
2
)
Find a Custom Home Builder

Serving Flossmoor, IL and surrounding areas

Approved

In business since 1974

Credit card accepted

Welcome to The Civic Architectural Group, Inc. where you can Expect the exceptional\n … because this is what we expect of ourselves as architects, as \nhuman beings. We recognize that each and everyone of our clients are \nindividuals with individual desires and expectations. We are passionate \nabout our services with compassion for each client: their budgets, \npersonalities, lifestyles, or business cultures are important to us. \nWe speak the loudest in the room by listening\n

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

3 neighbors recently requested a quote
Avatar for MasonMasters
MasonMasters
3.7(
3
)
Concrete Foundation - Repair

Serving Flossmoor, IL and surrounding areas

Approved

🏗️ Welcome to MasonMasters! 🏗️\n\nYour trusted experts in masonry repair and coatings. From restoring worn surfaces to giving your walls a fresh, durable finish, we specialize in quality workmanship that lasts.\n\n✅ Repairs & Coatings\n✅ Residential & Commercial Projects\n✅ Reliable, Professional Service\n\nLet us help you transform and protect your property—because every wall deserves a master touch.\n\n📞 Contact us today and see the MasonMasters difference!\n

45 neighbors recently requested a quote
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House Leveling questions, answered by experts

Pros often use mudjacking or polyurethane foam injection to level a sunken concrete patio. Both methods lift the slab by filling voids beneath it. After properly compacting the soil beneath it to prevent future settling, the concrete may need to be removed and re-poured for severe sinking.

The average cost for mudjacking is around $1,200, though prices can range from $300 to $3,400. On a per-square-foot basis, you can expect to pay between $3 and $8, with an average of about $5 per square foot. The final cost depends on several factors, including the square footage of the concrete, the type of slab, its accessibility, whether it is load-bearing, and the type of material used to lift it. Generally, lifting a driveway, small patio, or sidewalk is less expensive than lifting a slab foundation or garage floor.

Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer polyjacking over mudjacking for more damaged and delicate slabs.

Mudjacking typically takes 24 to 72 hours (one to three days) to dry and cure completely before you can resume normal use. The total drying time can vary depending on the size of the project. Because the slurry mixture contains cement, it needs to harden fully to prevent the concrete slab from shifting under added weight. You should avoid walking on the concrete or placing heavy items like furniture or vehicles on the surface until it has fully set. Your concrete contractor can provide a precise timeline. As a point of comparison, if you opt for polyjacking, the polyurethane foam can dry in minutes, but it's recommended to wait about an hour before use.

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.

The Flossmoor, IL homeowners’ guide to house leveling services

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