Foundation | Construction Services

Foundation Repair and Installation Services in California

A strong home begins with a solid foundation. At O’Brien & Sons Builders, we specialize in foundation repair, installation, and waterproofing services designed to protect your property for decades to come. Whether you’re building a new structure or addressing cracks, settling, or moisture problems, our team of licensed professionals brings the knowledge and experience to do the job right.

Why Choose O'Brien & Sons Builders for Your Foundation Needs?

We understand that foundation issues can be stressful and expensive if not handled properly. Our team uses advanced tools and proven techniques to ensure long-term stability and safety for your structure. Homeowners and business owners in Tarzana and greater Los Angeles count on us for foundation services that are thorough, transparent, and fairly priced.

  • Fully Licensed and Insured – Peace of mind on every job
  • Residential & Commercial – From single-family homes to commercial properties
  • Accurate Diagnostics – We identify the root causes before proposing a solution
  • Free Inspections & Estimates – No obligation and no pressure
  • Locally Trusted – Proudly serving Tarzana and Los Angeles neighborhoods

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Our Foundation Services

We offer complete solutions for both new construction and foundation problems in existing structures:

  • New Foundation Installation
  • Foundation Crack Repair
  • Slab & Stem Wall Foundations
  • Underpinning and Leveling
  • Waterproofing and Drainage Solutions
  • Earthquake Retrofitting
  • Basement & Crawlspace Repair

Benefits of Professional Foundation Services

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Personalize your space for the perfect fit.

Get a Free Foundation Inspection Today

Don’t let cracks, sinking, or water seepage go unchecked. Our team will evaluate your foundation and provide an honest, detailed estimate with no obligation.
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Frequently Ask Questions You Should Know

What are the warning signs of foundation problems?

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Do you provide inspections for homebuyers?
Yes, we offer pre-purchase foundation evaluations for real estate agents and buyers across Los Angeles and Tarzana.
How long does a foundation repair take?
Minor repairs take 1–2 days. Larger reinforcements or installs may take up to 1–2 weeks depending on complexity.
We assess soil, site, and structure size to recommend slab-on-grade, stem wall, or pier and beam options.

We assess soil, site, and structure size to recommend slab-on-grade, stem wall, or pier and beam options.

Is earthquake retrofitting necessary in California?
Yes. Retrofitting helps secure homes against seismic activity and may qualify you for insurance discounts.
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