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4.6

(34 reviews)

Top-rated concrete leveling pros.

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Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,512
)

Serving Algonquin, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"The work went extremely well. The concrete is now properly raised and sloped for drainage. The gap between the slab and my front stairs is also sealed. It looks great. I highly recommend Perma-Seal."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate94%
56 neighbors recently requested a quote
J&F Concrete Lifting
4.7(
26
)

Serving Algonquin, IL and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"J & F did a great job. Julio was responsive, showed up on time and did a great job. They weren't able to shift over an extremely large piece of concrete that was out of alignment, but they did improve it, and we can landscape around the imperfection. We did have an estimate from another company that was a couple hundred dollars cheaper, but they never showed or contacted us back. So, there you go. Would hire J & F again."
Response time12 hrs
Recommended by92%of homeowners
Avatar for U.S. Waterproofing
U.S. Waterproofing
4.3(
596
)

Serving Algonquin, 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%
17 neighbors recently requested a quote
Avatar for The Real Seal LLC
The Real Seal LLC
5.0(
252
)

Serving Algonquin, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"It went pretty well. They tool longer than I thought, and they used a sealant (gray) that didn't match the color of our house (white) or the concrete stoop. We were planning on painting it anyway, so in the end it's not a big deal. We like Real Seal and would use them again."
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
184 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for The Real Seal, LLC
The Real Seal, LLC
4.5(
38
)

Serving Algonquin, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"The workers did a great job leveling my steps. I didn't know the quote did not include sealing the material used to lift my porch. I called the company and they sent someone out to apply concrete over the exposed space."
 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
19 neighbors recently requested a quote
Recommended by94%of homeowners
ProLift Concrete Raising, LLC
4.9(
4
)

Serving Algonquin, IL and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. We at ProLift Concrete Raising, LLC strive to maintain our reputation as a high quality, very service oriented company with our main focus being customer satisfaction.

Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
SS Construction
New to Angi

Serving Algonquin, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Hello! We’re SS Construction, a trusted masonry company dedicated to delivering high-quality craftsmanship and reliable service on every project. With years of experience in brickwork, stonework, concrete, and repair, we take pride in building strong, beautiful, and long-lasting results for our customers. Whether you need new construction, restoration, or custom masonry design, we handle each job with attention to detail and professionalism.\n\nOur goal is simple — to exceed your expectations with honest communication, fair pricing, and quality work that stands the test of time. No project is too big or too small — we treat every client like family. Contact us today to bring your vision to life!

Avatar for Crawlspace / Basement Waterproofing Solution
Crawlspace / Basement Waterproofing Solution
4.4(
256
)

Serving Algonquin, IL and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"Brian and his crew returned to my building on a warranty followup- their previous work done wonders for my flooding problems, but my foundation walls are apparently made of swiss cheese and there was one small seepage problem remaining which only shows up during a "100 year rain event".  Brian indicated that they go for 100%, not 99% and scheduled time to come back out to my building to address the issue under the warranty (a.k.a. free of charge) from the original work.  They came back out, dug up the foundation again, and found a crack hidden behind an old hasty concrete patching job that had been tarred over, which was determined to be causing the remaining seepage.  They repaired the crack and were done with the whole task in only hours.  I am a repeat customer, and can't say enough good things about Crawlspace and Basement Waterproofing solutions, they are friendly, helpful, and most of all, stand behind their work!
"
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+13

Recommended by90%of homeowners
Avatar for Local Concrete LLC
Local Concrete LLC
4.2(
118
)

Serving Algonquin, IL and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"The team from designers concrete was extremely prompt, professional, and courteous. I was traveling so they had to deal with my wife. They provided an accurate estimate, scheduled the work within a week of me contacting them, and completed the job on time on budget. Luis and his team we're complete professionals and the stamped concrete patio looks beautiful. Overall, excellent service."
Additional Photos
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+8

Recommended by92%of homeowners
Avatar for Midwest Spray Coatings A Perfect Crawlspace
Midwest Spray Coatings A Perfect Crawlspace
4.7(
193
)

Serving Algonquin, IL and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"When we bought this house we were planning to renovate the basement.  The previous owner had represented that it had never taken on water.  The first weekend we were here, however, a torrential rainstorm caused the basement to flood.  We realized we needed to waterproof it before we could do anything else, and decided that drain tiling was the safest way to go.
Greg was phenomenally responsive from the start.  He was very clear about what needed to be done and how they would do it.  He also described some optional work but was explicit that it was optional and if it didn't fit within our budget that was that, and he wasn't going to push it the slightest bit.  His quote blew away the bigger, well-known firm and was less than or on a par with some others.  He also agreed to demo the walls for a slight extra charge, which otherwise would have been a huge convenience for us.  Between then and the start of work I emailed him repeatedly with various questions and he responded almost instantly.  When his workers took down the paneling we got the unpleasant news that we had huge cracks in the walls that would need to be tuckpointed and in one area a big chunk of foundation was jutting from the wall.  That section of the foundation would need to be replaced and a support beam installed.  We were more or less at Greg's mercy at this point -- we weren't going to halt work and bring in a series of guys to quote the tuckpointing & repair -- but Greg gave us an estimate of $2,600-$3,000.  We can't know for sure, but suspect that this price was more than fair, and Greg stuck to it even though we think the work turned out to be more than they expected.
The project manager, Jim, was fantastic to work with throughout, very communicative and accomodating, and the crew of five guys or so was extremely friendly and professional.  All in all, A Perfect Crawlspace was a pleasure to work with and we could not be happier with the results.
"
Exposed stone foundation
Foundation repair and insulation
Polyurea Coating
Ineffective fiberglass
Repairs to Foundation - Same Day

+16

Recommended by98%of homeowners
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Concrete Leveling questions, answered by experts

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

Concrete leveling is absolutely worth it if you have sunken concrete slabs and want to restore them to level, especially if the slab is part of your home foundation. Concrete leveling is less than half the price of replacing concrete sidewalks, patios, walkways, and pool decks, and it’s about a quarter of the cost of replacing a foundation. If you also treat the underlying problem, it can be a worthwhile and permanent solution.

Polyjacking and mudjacking can both be effective solutions for sinking concrete, but they have key differences. Polyjacking, which uses expanding polyurethane foam, is often considered a better option because the foam is significantly lighter than the cementitious material used for mudjacking. This reduced weight puts less pressure on the underlying soil and lowers the risk of future sinking. Polyjacking is suitable for any sinking concrete slab, while mudjacking is typically only recommended for non-structural concrete, such as sidewalks, patios, pool decks, and driveways. The primary drawback of polyjacking is its cost, which can be up to four times higher than mudjacking—as much as $25 per square foot compared to a maximum of about $6 per square foot for mudjacking.

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.

Address drainage issues, avoid heavy loads, and seal cracks to prevent future settling.

The Algonquin, IL homeowners’ guide to concrete leveling services

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