Last updated: March 1, 2026
The Numbers Behind the Headline
Construction-related general liability claims in Southern California increased 22% year-over-year in 2025, according to combined data from the Insurance Information Institute and the Workers' Compensation Insurance Rating Bureau of California. The spike continues a trend that began in 2023 and shows no sign of reversing in 2026.
The dollar value of those claims rose faster than the count — average claim severity is up 31% over two years, meaning claims are not only more frequent but more expensive when they happen.
Three Factors Driving the Increase
1. Residential construction volume
The LA County residential building permit count has been elevated since 2023, driven in part by ADU (accessory dwelling unit) construction and post-fire rebuild activity in parts of the county. More active job sites mean more opportunities for third-party claims. A 20% increase in active construction sites correlates almost directly with the claim count increase.
2. Higher medical and legal costs
The cost of resolving a bodily injury claim — medical treatment, lost wages, and legal fees — has risen sharply. Emergency room visits in Los Angeles County average $3,800 per incident, up from $2,900 in 2021. Plaintiff attorney fees have also risen, and more claimants are retaining counsel earlier in the process, increasing the ultimate cost of settlement.
3. Completed operations tail exposure
A growing share of claims are "completed operations" claims — filed months or years after a project finished. Roofing, waterproofing, and HVAC installations account for a disproportionate share of this tail exposure. A roof installed in 2023 that leaks in 2025 generates a claim against the contractor's policy, sometimes after the contractor has already switched carriers.
What This Means for Contractors in SE LA County
If you're a contractor in Santa Fe Springs, Norwalk, Downey, or the surrounding cities, several practical responses are worth considering.
First, review your completed operations aggregate. This is a separate sublimit within your CGL policy that caps total payout on after-the-fact claims. If it's set at $1M and your annual volume is growing, that sublimit may no longer reflect your actual exposure.
Second, verify that your subcontractors carry their own coverage — and that you're named as an additional insured on their policies. When a subcontractor causes a claim and their policy doesn't pay, the general contractor's policy absorbs the loss.
Third, document everything. Claim disputes increasingly come down to documentation: photos, signed change orders, inspection sign-offs. Good documentation doesn't prevent claims, but it does reduce the cost of defending them.
A Note on Premium Trends
The increase in claim frequency and severity is putting upward pressure on CGL premiums for construction trades in California. Contractors renewing policies in 2026 should expect rate increases of 8–18% compared to 2024 premiums, depending on claims history and trade classification. Shopping coverage at renewal — rather than auto-renewing with the same carrier — is more valuable now than it was two years ago.
Source: Insurance Information Institute (iii.org) and WCIRB California 2025 Annual Report. This summary is for informational purposes only.