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Helping Modesto Homeowners Fix Foundation Cracks, Wet Basements, and Sagging Floors

Foundation issues are more common in Modesto than many homeowners realize. Whether it’s shifting soil, high water tables, or aging construction, the damage adds up over time—causing cracked foundations, sagging floors, and wet basements.

At Stronghold Foundation Repair, we provide permanent solutions to stabilize your home, seal out moisture, and protect your investment. If you’re searching for Foundation Repair in Modesto, you’re in the right place.

Our Services

Foundation Repair Modesto

Our structural repair team fixes cracked foundations in Modesto and addresses settling foundations using helical piers, push piers, and structural bracing designed to restore long-term support.

Modesto Crawl Space Repair & Encapsulation

Sagging floors, moisture buildup, or poor air quality? Our Modesto crawl space repair services include encapsulation systems, vapor barriers, and support jacks to keep your crawl space dry and stable.

Modesto Basement Waterproofing

Tired of a wet basement in Modesto? We install sump pumps, drain tile systems, vapor barriers, and dehumidifiers to stop water from damaging your home.

Modesto Concrete Leveling

Uneven concrete slabs or walkways? We lift and level surfaces using polyurethane foam, a clean, fast, and reliable Modesto concrete leveling solution that eliminates tripping hazards and improves curb appeal.

Framing & Structural Repairs

We repair sagging beams, joists, and other structural components caused by settlement, rot, or age-related wear.

Why Choose Stronghold Foundation Repair?

Engineer-Designed Repairs

U.S.-Made Helical and Push Piers

Certified Local Technicians

Clear Communication and Respectful Crews

Backed by the Stronghold Foundation Repair Warranty

About Stronghold Foundation Repair

Stronghold Foundation Repair serves Modesto with decades of combined experience in structural and waterproofing work. We understand the local soil conditions—particularly expansive clay and loose sediment that put your foundation at risk.

We don’t just repair the symptoms; we fix the underlying problems causing damage. Every solution is engineered, customized, and designed to last.

What Sets Us Apart:

  • Free, no-pressure inspections
  • Lifetime transferable warranties
  • Expert installation teams
  • U.S.-made steel products

Modesto Neighborhoods We Serve

We serve Northern California including Sacramento, Vacaville, Fairfield, Stockton, Davis, and the surrounding areas. Whether you’re dealing with cracks in your foundation, uneven floors, problems with doors and windows, or other structural issues, our team is here to help.
Top Cities We Serve

Hear What Your Neighbors Have To Say About Us

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lorena juarez
28 August 2026
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I was skeptical that the cracks in my walls would close up, but they did. They were fair and explained the process better than every other company I had come out. I will definitely recommend to friends and family. Adam was very patient and helpful.
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Steven Almaraz
23 August 2026
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Very professional company. Would 100% recommend to any and all in need of their services.
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NIK Prawdzik
23 August 2026
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The Stronghold team did an excellent job in explaining the process to me for my home as well as some preventative measures to ensure this doesnt happen in the future! Forever grateful for an honest professional experience!!!
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Milton Kalish
18 August 2026
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Adam Porter was friendly and professional, I was very impressed when he told me that no repair was needed at this time-- he carefully explained how foundation repair works, and discussed possible strategies moving forward.
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Jon Hurwitz
3 August 2026
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Adam Porter came out and took a look at my situation - was super honest and guided me in the right direction. I didn't need a large foundation repair and he gave me tips on how I could get the job done myself (since it ended up being a small one). Super honest crew - you don't see that much anymore.
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Connor Mawhinney
24 July 2026
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Adam came out to look at a crack in our slab after we'd received several quotes in the $7,000–$10,000 range. I was completely surprised to learn we actually had a small fix that I could do myself! The honesty blew me away, and I'd recommend Stronghold if you're looking for someone to take care of your foundation issues.
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Heather Johnson
17 July 2026
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I had an outstanding experience with Stronghold Foundation Repair from start to finish. Their team was professional, knowledgeable, and incredibly honest throughout the entire process. They took the time to thoroughly inspect my properties, explain the cause of the foundation issues in terms I could understand, and presented solutions without any pressure or unnecessary upselling. Communication was excellent, the crew arrived on time, kept the work area clean, and completed the project with exceptional attention to detail. It’s clear they take pride in the quality of their work and genuinely care about their customers. I now have complete confidence in the stability of my home’s foundation and the value of the repairs they performed. Finding a contractor you can truly trust isn’t easy, but Stronghold exceeded my expectations in every way. If you’re looking for a foundation company that is honest, reliable, highly skilled, and committed to doing the job right, I highly recommend Stronghold Foundation Repair. They have earned my trust, and I wouldn’t hesitate to use them again or recommend them to family, clients, and friends.
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Crystal V
10 July 2026
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Adam came out and explained the issue wasn’t my foundation but my driveway. He was honest and said I could get someone else to do it cheaper and gave me a referral. I appreciated his honesty. I’d work with him again.
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Grace Lattuada
6 July 2026
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Excellent customer service, fair pricing, honest owners, and premium quality of work.
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InTheZone Outdoors
2 July 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great customer service, a the crew doing the repairs where great an helpful with all the questions I had once’s again thank you !
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Foundation Repair Costs in Modesto

Your foundation repair costs will depend on the damage severity, home type, and solution needed. Most jobs fall within $5,000 to $15,000 but can vary based on:

  • Crawl space vs. basement access
  • Extent of settling or cracks
  • Need for waterproofing or drainage upgrades

Every inspection is free, and every estimate is straightforward.

Flexible financing available.

Honest Pricing. Zero Guesswork.

How To Get Started With Your Foundation Repair Project

To Do

Request Your Free Estimate

Give or a call or fill out our online form. We will contact you to schedule your appointment and will provide you with our recommendations and an estimate.

To Do
To Do

Review Estimate and
Schedule Your Project

Feel free to ask us any questions you may have regarding your project. Our team will assist you in exploring financing options that suit your budget and preferences. Once you have decided to proceed, we will promptly schedule your project for completion.

To Do
To Do

Enjoy Your Stabilized Home

Once the foundation work is completed, you can have peace of mind knowing that your property is fortified against future foundation issues.

Modesto Foundation Repair FAQs

What causes foundation problems in Modesto?

Modesto soils expand and shrink due to weather changes and water retention. Over time, this leads to cracked or settling foundations—especially in older homes or homes built on expansive clay.

How can I tell if my crawl space needs repair?

Common signs include musty smells, visible mold, sagging floors, or increased humidity. If you notice any of these, a Modesto crawl space repair or encapsulation system can help prevent bigger issues.

Do you offer waterproof crawl space systems?

Yes. We install vapor barriers, drainage matting, sump pumps, and full crawl space encapsulation in Modesto to prevent water damage and improve air quality.

Contact Us