HomeImprovement.Reviews
🧱 Top 5 · 2026📍 Riverside, CA

The 5 best foundation repair companies in Riverside.

Everything else sits on it.

Chosen by our review committee · Google ratings as of November 9, 2026 · Companies cannot pay to be listed

Foundation Repair Companies at work
1
Groundworks
★★★★★ 5.0 · 238 reviews

Cracks in the brick, doors that stick, floors that slope. The best foundation repair companies in Riverside start with an honest evaluation, use proven piers or drainage fixes, and back the work with a transferable warranty.

  1. 1

    Groundworks

    🏆 Best foundation repair company in Riverside
    ★★★★★ 5.0· 238 Google reviews

    Every one of Groundworks's 238 Google reviews averages out to a flawless 5.0. That many reviews is hard to fake and harder to keep that high. Based in Ontario, it takes the top spot among foundation repair companies in Riverside this year.

    📍 1850 S Parco Ave, Ontario, CA 91761
  2. 2
    ★★★★★ 4.9· 788 Google reviews

    With 788 Google reviews averaging 4.9, Dalinghaus Foundation Repair has earned its place here. That is one of the deepest review histories of any foundation repair company in the Riverside area. Based in Lake Elsinore, it lands at #2 on our Riverside list.

    📍 445 Birch St, Lake Elsinore, CA 92530
  3. 3
    ★★★★★ 4.9· 229 Google reviews

    Professional Foundation Repair carries a near-perfect 4.9 Google rating from 229 reviews. That many reviews is hard to fake and harder to keep that high. Based in Garden Grove, it rounds out the top three for Riverside.

    📍 7441 Anaconda Ave, Garden Grove, CA 92841
  4. 4

    Alvarez Construction Services

    ★★★★★ 4.9· 51 Google reviews

    With 51 Google reviews averaging 4.9, Alvarez Construction Services has earned its place here. A solid body of feedback for a local foundation repair company. Based right in Riverside, it rounds out the top four for Riverside.

    📍 7671 Mission Blvd, Riverside, CA 92509
  5. 5
    ★★★★★ 5.0· 16 Google reviews

    A 5.0 Google rating with 16 reviews behind it puts Berdoo Concrete in rare company. A newer listing that our committee still found worth a close look. Based in Redlands, it rounds out the top five for Riverside.

    📍 1740 Howard Pl, Redlands, CA 92373
How this list was made

Picked by people who read the reviews.

Our review committee researched foundation repair companies serving Riverside and the surrounding area, read consumer reviews across the web, and settled on these five. We look at how many people have reviewed a company, what they say, and how the company holds up over time. We keep the full recipe to ourselves so it cannot be gamed. Google ratings shown are as of November 9, 2026. No company paid to be here, and none can. More on how we choose →

Before you sign

How to hire a foundation repair company in Riverside

1

Get an independent engineer's opinion before committing to a large repair.

2

Ask whether the warranty transfers to the next owner and what it excludes.

3

Compare pier types: pressed concrete, steel, helical, and why they recommend one.

4

Ask about drainage and watering; many problems start with soil moisture, not the slab.

Good to know

Foundation Repair Company questions, answered

Do cracks always mean foundation problems?

No. Hairline cracks in brick or drywall are common with seasonal movement. Doors that stop latching, stair-step cracks and sloping floors deserve an evaluation.

How long does foundation repair take?

Most pier jobs take one to three days. Landscaping and drainage work may follow.

Will repair fix the cracks?

Lifting the foundation often closes cracks partly. Cosmetic repairs to brick and drywall are usually a separate step.

For the winners

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#1 Foundation Repair Company in Riverside, CA 2026
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#2 Foundation Repair Company in Riverside, CA 2026
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#3 Foundation Repair Company in Riverside, CA 2026
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#4 Foundation Repair Company in Riverside, CA 2026
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#5 Foundation Repair Company in Riverside, CA 2026
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