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Verified Reviews for Concrete Leveling pros in Ontario, CA

*The Angi rating for Concrete Leveling companies in Ontario, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Leveling needs.

*The HomeAdvisor rating for Concrete Leveling companies in Ontario, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Leveling needs.

Last update on October 24, 2025

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Avatar for Loma Designs Concrete Work
Loma Designs Concrete Work
5.0(
8
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

Approved

In business since 2024

Free estimates

Customers say: True professional

"Ralph did an amazing job! I had a difficult and stylish slab that I wanted poured and stamped. This was the first time I wanted colored and stamped concrete. Ralph consulted with me, and understood what I wanted. He then showed me exactly what my finished product would look like. It was a big pour (10 yards), but he got it perfect! I wouldn't hesitate to use him again (I've actually got several other concrete projects). The guy is an artist with something as mundane as concrete. If you hire him, you will definitely be satisfied with the outcome."
Additional Photos
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Additional Photos

+29

2 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Just Stamping Concrete
Just Stamping Concrete
5.0(
28
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"I recently had the pleasure of working with Just Stamping Concrete for a landscape design project, and I cannot recommend them enough! They are a true gem in the industry, and their work speaks for itself."
Concrete
Response time2 hrs
Response rate100%
2 neighbors recently requested a quote
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Avatar for Groundworks
Groundworks
3.5(
176
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Warranties offered

"My project was too small for them. They told me who to look for to get my problem fixed. I was pleased they took the time to help me."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time11 hrs
102 neighbors recently requested a quote
Recommended by38%of homeowners
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Avatar for Dalinghaus Construction, Inc
Dalinghaus Construction, Inc
4.4(
7
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Was getting a home inspected before selling and had them fix a few concrete issues and foundation. Was very pleased with the outcome and pricing."
Completed retaining wall repairs with helical tiebacks
Lifting a San Clemente hillside home that had settled or sunk 16 inches
Team work makes the dream work in foundation repairs!
Foundation repair in Avalon on Catalina Island
Foundation repair project at hillside home in San Clemente overlooking the Shorecliffs Golf Club

+128

Response time4 days
8 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for AP Concrete LLC
AP Concrete LLC
5.0(
9
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

"The project was done with excellency. AP Concrete was very understanding of what I wanted within a timely manner. My driveway has stamped & decorative concrete. And I now have a beautiful patio in my backyard as well. AP Concrete was able to work with my budget and gave budget friendly suggestions. I will be hiring them again for any other future projects."
Additional Photos
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Additional Photos

+17

Recommended by100%of homeowners
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Avatar for Rocha Legacy Builders
Rocha Legacy Builders
4.5(
24
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"Very professional and fair price. Honest, and gave very good advice to save me money and time. Would hire again on future projects. Very responsive and even came out on a Sunday on short notice. What a champ."
Lawn Irrigation Project
Tree Service Project
Tree Service Project
Landscaping Project
Tree Service Project

+148

Recommended by86%of homeowners
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Avatar for Thomas Parks Contracting
Thomas Parks Contracting
4.8(
100
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

In business since 1976

Free estimates

Emergency services offered

"I have a tile roof that did not qualify for the offer."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Recommended by94%of homeowners
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Avatar for CXC Contracting
CXC Contracting
4.5(
52
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"They are probably the most honest. Mr. Crawford came to my home. Very patient and took time to look at the whole situation. Willing to work with us. I would not hesitate to use him."
Additional Photos
Recommended by85%of homeowners
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Avatar for TLS Builders Inc.
TLS Builders Inc.
4.6(
19
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Ontario, CA and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"They did an amazing job! The driveway came out amazing as well as the process was easy and non disruptive. They were very nice and easy to work with with and the final product came out outstanding. Definitely would recommend for any future projects similar to mine. The turf in the front yard as well came out wonderful. There were no folds in at all and it looks very natural and elegant. Thank you guys very much for the work."
before
Pet Turf Installation - Encino
Bathroom Remodel in Malibu Art Studio Before Photo
Backyard Pavers Install Before Photo
Bathroom Remodel After Photo

+82

Recommended by100%of homeowners
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Concrete Leveling questions, answered by experts

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.

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 timeframe is generally a few hours, allowing for immediate use post-hydration, ensuring minimal disruption to surrounding activities.

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.

It’s best not to perform mudjacking in the winter unless the ground temperature remains above freezing. Freezing temperatures can cause the slurry to harden too quickly, compromising its strength and longevity. Concrete is also more susceptible to cracking and splitting in cold temperatures, so there’s a higher risk of damaging the slab during the drilling and lifting process in winter.

The Ontario, CA homeowners’ guide to concrete leveling services

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

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