Foundation Repair in Ontario, California

28 verified foundation specialists serving Ontario. Every listing shows the credentials we verified.

Informational only. This page helps you find certified professionals. It is not medical, legal, or structural safety advice. For any health or safety hazard, consult a certified/licensed expert. See our verification methodology.

Typical cost in Ontario

$2,000–$25,000

Credentials to expect

Licensed Structural Engineer, State Contractor License, Foundation Repair Certified

Key fact

Foundation issues are among the most expensive home repairs — early action limits cost.

Foundation specialists in Ontario

28 listings

Groundworks Riverside

Ontario, California

Featured
✓ Groundworks Network Member

Groundworks Riverside provides professional foundation repair contractor in Ontario, CA. The company holds Groundworks Network Member certification. Contact Groundworks Riverside for more information.

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K A R Construction Inc

Ontario, California

Featured
✓ CSLB B | C-8

K A R Construction Inc provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 certification. Contact K A R Construction Inc for more information.

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Legend Construction Services Inc

Ontario, California

Featured
✓ CSLB B | C-8 | C39

Legend Construction Services Inc provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 | C39 certification. Contact Legend Construction Services Inc for more information.

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M & R Construction Services Inc

Ontario, California

Featured
✓ CSLB B | C-8 | C27 | C29

M & R Construction Services Inc provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 | C27 | C29 certification. Contact M & R Construction Services Inc for more information.

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Nexera Concrete

Ontario, California

Featured
✓ CSLB C-8

Nexera Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Nexera Concrete for more information.

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Strong Base Concrete Construction

Ontario, California

Featured
✓ CSLB C-8

Strong Base Concrete Construction provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Strong Base Concrete Construction for more information.

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Pro
✓ CSLB C-8 | C29

Ajb Concrete & Masonry Construction provides professional home safety services in Ontario, CA. The company holds CSLB C-8 | C29 certification. Contact Ajb Concrete & Masonry Construction for more information.

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Douma Concrete

Ontario, California

Pro
✓ CSLB C-8

Douma Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Douma Concrete for more information.

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Garcon Construction Inc

Ontario, California

Pro
✓ CSLB A | C-8

Garcon Construction Inc provides professional home safety services in Ontario, CA. The company holds CSLB A | C-8 certification. Contact Garcon Construction Inc for more information.

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K P Construction Co Inc

Ontario, California

Pro
✓ CSLB B | C-8 | C51

K P Construction Co Inc provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 | C51 certification. Contact K P Construction Co Inc for more information.

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Old School Masonry Inc

Ontario, California

Pro
✓ CSLB C-8 | C29

Old School Masonry Inc provides professional home safety services in Ontario, CA. The company holds CSLB C-8 | C29 certification. Contact Old School Masonry Inc for more information.

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Tom'S Concrete Inc

Ontario, California

Pro
✓ CSLB C-8 | C53

Tom'S Concrete Inc provides professional home safety services in Ontario, CA. The company holds CSLB C-8 | C53 certification. Contact Tom'S Concrete Inc for more information.

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A G Construction

Ontario, California

Free
✓ CSLB B | C-8 | C10 | C29

A G Construction provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 | C10 | C29 certification. Contact A G Construction for more information.

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Apex Concrete

Ontario, California

Free
✓ CSLB C-8

Apex Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Apex Concrete for more information.

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Cano Architecture Concrete Repair

Ontario, California

Free
✓ CSLB B | C-8

Cano Architecture Concrete Repair provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 certification. Contact Cano Architecture Concrete Repair for more information.

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Coastline Outdoor Solutions

Ontario, California

Free
✓ CSLB C-8 | C27

Coastline Outdoor Solutions provides professional home safety services in Ontario, CA. The company holds CSLB C-8 | C27 certification. Contact Coastline Outdoor Solutions for more information.

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Free
✓ CSLB A | B | C-8

Commercial Concrete Constructors Inc provides professional home safety services in Ontario, CA. The company holds CSLB A | B | C-8 certification. Contact Commercial Concrete Constructors Inc for more information.

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Correa Construction

Ontario, California

Free
✓ CSLB B | C-8

Correa Construction provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 certification. Contact Correa Construction for more information.

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Darracq R A Concrete

Ontario, California

Free
✓ CSLB C-8

Darracq R A Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Darracq R A Concrete for more information.

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F C Formsetter & Concrete

Ontario, California

Free
✓ CSLB C-8

F C Formsetter & Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact F C Formsetter & Concrete for more information.

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Jewett W H Inc

Ontario, California

Free
✓ CSLB B | C-8

Jewett W H Inc provides professional home safety services in Ontario, CA. The company holds CSLB B | C-8 certification. Contact Jewett W H Inc for more information.

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Mana Concrete

Ontario, California

Free
✓ CSLB C-8

Mana Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Mana Concrete for more information.

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Marlu Construction

Ontario, California

Free
✓ CSLB A | B | C-8

Marlu Construction provides professional home safety services in Ontario, CA. The company holds CSLB A | B | C-8 certification. Contact Marlu Construction for more information.

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Mc Ghee Construction Inc

Ontario, California

Free
✓ CSLB A | B | C-8

Mc Ghee Construction Inc provides professional home safety services in Ontario, CA. The company holds CSLB A | B | C-8 certification. Contact Mc Ghee Construction Inc for more information.

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Moe'S Concrete

Ontario, California

Free
✓ CSLB C-8

Moe'S Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Moe'S Concrete for more information.

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Pacific Edge Concrete

Ontario, California

Free
✓ CSLB C-8

Pacific Edge Concrete provides professional home safety services in Ontario, CA. The company holds CSLB C-8 certification. Contact Pacific Edge Concrete for more information.

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Robert Alan Construction Inc

Ontario, California

Free
✓ CSLB A | C-8

Robert Alan Construction Inc provides professional home safety services in Ontario, CA. The company holds CSLB A | C-8 certification. Contact Robert Alan Construction Inc for more information.

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Spec Construction Co Inc

Ontario, California

Free
✓ CSLB A | B | C-4 | C-8 | C-9 | C10 | C15 | C17 | C20 | C33 | C35 | C36 | C39

Spec Construction Co Inc provides professional home safety services in Ontario, CA. The company holds CSLB A | B | C-4 | C-8 | C-9 | C10 | C15 | C17 | C20 | C33 | C35 | C36 | C39 certification. Contact Spec Construction Co Inc for more information.

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Foundation Repair in Ontario — FAQ

Do I need a structural engineer or a contractor?
For diagnosis and a neutral repair spec, a licensed structural engineer is best; the repair itself is done by a licensed foundation contractor.
How much does foundation repair cost?
Minor crack sealing can be ~$2,000; helical piers or full underpinning can reach $25,000+.
Are foundation cracks always serious?
Not always — hairline cracks are common, but horizontal cracks, stair-step cracks, and doors that stick warrant a professional assessment.

Other services in Ontario

Mold Remediation

in Ontario, California

Asbestos & Lead Abatement

in Ontario, California

Well Water Testing

in Ontario, California

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