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Risk Management
8 min readDecember 28, 2023

Protecting Your Business from Construction Defect Claims

Learn how to prevent construction defect claims and ensure your insurance provides adequate protection when allegations arise.

Construction Defect Claims Can Destroy Your Business

I've seen solid contractors with decades of clean work history lose everything to a single construction defect claim. These cases are expensive, time-consuming, and emotionally draining. Understanding how they work helps you avoid them and survive if one finds you.

Types of Defects

Design Defects

Plans that are inadequate for their intended use. Engineering errors in structural calculations. Specification problems that lead to material or system failures. These typically flow to architects and engineers, but design-build contractors share this exposure.

Material Defects

Using materials that don't meet specifications. Products that fail despite proper installation. Material substitutions that create problems. Sometimes the manufacturer is at fault, sometimes the contractor who selected or approved the materials.

Workmanship Defects

Installation that doesn't meet industry standards. Failure to follow specifications or manufacturer instructions. Cutting corners that create problems later. This is where most contractor claims land.

Geotechnical Issues

Soil analysis errors that lead to foundation problems. Improper grading and drainage. Water table issues that weren't properly addressed. These often involve multiple parties and experts.

California's Legal Framework

Statutes of Limitation and Repose

California allows construction defect claims for up to 4 years after discovery of patent defects and 10 years after substantial completion for latent defects under the statute of repose.

What this means practically is that you can face a claim for work done a decade ago. Your insurance and records need to extend that far.

California Civil Code Section 895-945.5

California's Right to Repair Act (SB 800) establishes pre-litigation procedures for residential construction defects. Homeowners must provide written notice before filing lawsuits. Contractors get an opportunity to inspect and potentially repair before litigation. Specific procedures must be followed. This creates opportunities to resolve disputes before they become court battles.

Right to Repair

Contractors who respond properly to pre-litigation notices can sometimes repair defects instead of paying damage claims. This can significantly reduce overall costs and is worth pursuing when feasible.

How Insurance Responds

What's Typically Covered

Damage to other property caused by your defective work. Defense costs when you're sued for defect allegations. Third-party injury claims if defects cause injuries.

What's Typically Not Covered

The cost to repair or redo your own defective work. Your materials and labor to correct problems. Pure economic losses without physical damage.

This distinction matters enormously. If your faulty roof installation causes water damage to the building interior, the interior damage may be covered. But tearing off and replacing the roof itself isn't covered.

Completed Operations Coverage

Claims arising after project completion are covered under the products-completed operations portion of your policy. This coverage has its own aggregate limit. On large projects or with multiple claims, exhausting this aggregate is a real concern.

Protecting Yourself During Construction

Document everything. Photograph each phase before it's covered up. Maintain quality control procedures with written checklists. Get written approvals from owners, architects, and inspectors. Keep records organized and accessible.

When a Claim Arises

Immediate Actions

Notify your insurance carrier immediately. Don't delay, don't try to handle it yourself first, don't hope it goes away. Your policy requires prompt notice, and late notice can void coverage.

Don't admit fault or make promises to repair. Cooperate with the claimant's inspection requests, but let your carrier guide the process.

Preserve all documentation related to the project. Pull contracts, change orders, inspection reports, correspondence, and photographs.

Working With Your Carrier

Cooperate fully with your adjuster and assigned defense counsel. Provide requested documents promptly. Attend inspections and depositions as directed. Don't settle or make agreements without carrier approval.

Common Questions

Does my GL cover the cost to fix my defective work?

Generally no. GL covers damage your work causes to other property, not the repair of the work itself.

What if multiple contractors are involved?

Claims often name everyone remotely connected to the project. Your carrier will determine your share of responsibility through investigation and negotiation.

How long do I need to worry about defect claims?

In California, claims can arise up to 10 years after project completion. Maintain coverage and records accordingly.

Published by Construction Pros Insurance Services. Founded by a former California tradesman with over a decade of construction experience. Meet our team →