In California’s fast-paced and high-demand construction industry, builders face increasing pressure to deliver quickly, competitively, and at scale. Yet with every project comes a degree of risk—especially when it comes to construction defect claims. For contractors, developers, and builders, these disputes can be costly, time-consuming, and damaging to both your bottom line and your reputation.
At Stone LLP, we believe the best defense is a strong foundation of quality, clear communication, and proactive legal awareness. In this guide, we explore how California contractors can not only avoid defect claims but also handle disputes professionally, leveraging tools like the Right to Repair Act (SB 800) to protect their interests and maintain client trust.
Understanding Construction Defects: What Builders Need to Know
A construction defect is more than just a minor issue—it’s typically defined as a failure in design, workmanship, materials, or systems that leads to physical damage or a loss of intended function. Common defects include:
- Leaking roofs or windows
- Soil movement affecting foundations
- Improper drainage and waterproofing
- Defective stucco, siding, or cladding
- Cracked slabs or failing decks
- Mold and water intrusion from poor sealing
For builders, the challenge isn’t just about avoiding mistakes—it’s about proving you followed proper procedures, complied with code, and responded to complaints responsibly.
California’s Legal Framework: What Is SB 800?
Known as the Right to Repair Act, SB 800 (Civil Code §895–945.5) governs construction defect claims in California for residential new construction built after January 1, 2003.
Why this matters for builders:
- SB 800 provides performance standards for building components (e.g., windows must not leak, roofs must resist water intrusion, etc.).
- It also requires homeowners to give you notice and an opportunity to repair before they sue.
- This gives you the chance to resolve disputes early, avoid litigation, and maintain client satisfaction.

As a contractor, complying with SB 800 is one of the most powerful tools in your legal defense strategy.
1. Proactive Risk Management Starts During Construction
A. Documentation Is Everything
Start building your legal defense on Day 1.
- Keep detailed daily logs of work performed.
- Maintain records of inspections, approvals, and corrections.
- Save photos and videos of key construction milestones (e.g., waterproofing membrane installations, flashing details, structural connections).
- Record all change orders and client approvals in writing.
This documentation is your shield if a claim arises later. Courts and insurers rely heavily on what’s documented, not what’s remembered.
B. Use Qualified Subcontractors & Suppliers
Vet your trades. Make sure subcontractors are:
- Licensed and insured
- Familiar with relevant California codes
- Willing to sign subcontracts that include indemnity provisions, scope clarity, and SB 800 compliance
The quality of your work is only as good as the people you rely on.
C. Conduct Third-Party QA/QC Inspections
Hire independent inspectors for key systems:
- Roofing and waterproofing
- Windows and doors
- Framing and structural assemblies
Third-party quality control (QC) reports not only help you catch issues early, they become strong evidence of compliance if you’re later accused of negligence.
2. When a Homeowner Files a Construction Defect Claims: How to Respond Legally & Professionally
When a defect claim arises, especially under SB 800, the law gives you an opportunity to respond constructively.
A. Take All Notices Seriously
Under SB 800, homeowners must serve you with a Notice of Claim before initiating litigation. Once received:
- Don’t ignore it—failure to respond can waive your repair rights.
- Immediately notify your insurance carrier.
- Consult a construction law attorney to guide your response and ensure deadlines are met.
B. Offer Timely Inspections
You have the right to inspect the claimed defects, typically within 14 days of receiving notice. This is your chance to:
- Understand the scope of the issue
- Assess whether the defect exists
- Determine the cause and responsibility
Bring your project manager, subcontractors involved, and a third-party expert if necessary.
C. Choose to Repair or Settle
After inspecting, you may:
- Offer to repair the issue at your own cost
- Offer a monetary settlement
- Dispute the claim (though this may escalate to litigation)
The key is to respond within the statutory timeframes and document every step.
3. Common Pitfalls for Builders — And How to Avoid Them
❌ Ignoring Early Signs of Defect Allegations
Whether it’s a callback for a leak or a complaint about a cracked patio, don’t brush it off. Even minor issues can lead to major claims if not addressed.
✅ Instead: Take every complaint seriously and document your investigation and response.
❌ Poor Communication with Clients
A breakdown in communication can turn a small defect into a major lawsuit. Clients want to feel heard, respected, and informed.
✅ Instead: Maintain professional, polite, and written communication throughout the warranty period. Set expectations early and follow up regularly.
❌ Assuming You’re Covered by Insurance
Many builders assume that if a defect arises, their general liability (GL) insurance will step in. However:
- Many GL policies exclude construction defects
- Some insurers dispute whether a defect was caused by an “occurrence”
- Coverage can be denied if you fail to follow SB 800 procedures
✅ Instead: Review your policy with a construction attorney. Ensure you have completed operations coverage, and consider builders’ risk and wrap-up insurance for large projects.
4. The Role of Legal Counsel for Builders
Partnering with a construction law attorney isn’t just for when you’re sued. Legal counsel can help you:
- Draft better contracts with protective clauses
- Understand SB 800 timelines and compliance
- Guide pre-litigation communications
- Defend claims cost-effectively if they escalate
Good legal strategy is about prevention as much as defense.
5. Enhancing Your Reputation by Handling Claims Responsibly
Believe it or not, how you handle a construction defect says more about your company than the defect itself. Builders who:
- Respond promptly
- Take responsibility (when warranted)
- Offer quality repairs
- Maintain professionalism under pressure
…are far more likely to maintain client relationships and avoid lawsuits.
In fact, many defect cases are born out of frustration, not damage. Prevent this by being a responsive and responsible builder, even after the final invoice is paid.

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Final Thoughts: Build It Right. Stand Behind It.
In California, construction is a high-stakes game. With every project comes potential legal exposure—but also the opportunity to stand out as a builder of integrity, quality, and professionalism.
At Stone LLP, we believe that smart construction isn’t just about structures—it’s about protecting relationships, brands, and bottom lines.
By documenting your work, understanding SB 800, responding to claims strategically, and investing in quality at every step—you can reduce your legal risk and increase your competitive advantage.
Need Help Construction Defect Claims Compliant Processes?
Looking to upgrade your construction defect response policies? Need help drafting solid contracts or handling a claim?
📞 Contact Stone LLP for a free consultation on risk management and legal best practices for California builders.
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📞 Call Us: 949-477-9100
🌐 Visit: https://stonellp.com/california-construction-defect-lawyers-near-me/