Your project just reached substantial completion. The punch list is closed out. The owner has the keys. Your team moves on to the next build.
But your insurance compliance obligation? That’s just entering its longest phase.
In most states, general contractors carry warranty exposure for years after a project is complete. In California, that window can extend to 10 years depending on the project type and the nature of the defect. During that entire period, every subcontractor who performed work on the project needs to maintain active, compliant insurance coverage. If they don’t — and a claim comes in — the general contractor is exposed.
This is one of the most significant liability gaps in construction today. And almost nobody is talking about it.
in California
per 25 warranty projects
warranties — until now
What’s Inside
- The Compliance Gap After Project Completion
- What Happens When a Warranty Claim Hits
- How Most GCs Manage Warranty Compliance Today
- Why Your Current Compliance Tool Doesn’t Solve This
- How Billy’s Warranty Mode Works
- Getting Started: What You Need to Know
The Compliance Gap After Project Completion
During active construction, most GCs have a clear process for insurance compliance. Subcontractors submit certificates of insurance before mobilizing. Someone on the team — an insurance coordinator, contract administrator, or compliance manager — reviews the certs, verifies coverage limits and endorsements, and tracks renewals throughout the project.
The problem starts the day the project is marked complete.
In most firms, the compliance workflow simply stops. The project is archived. The team moves on. And the warranty clock starts ticking — silently — on an obligation that could last five, seven, or ten years depending on the jurisdiction and project type.
During that warranty period, every subcontractor who performed work on the project needs to maintain active insurance coverage that meets the original contract requirements. If their general liability lapses, if they drop their additional insured endorsement, if they let their completed operations coverage expire — and a defect claim comes in during the warranty window — the general contractor may have no coverage to fall back on.
The sub’s insurance was supposed to be the first line of defense. But if nobody was watching, that line of defense may no longer exist.
What Happens When a Warranty Claim Hits
Let’s walk through a realistic scenario.
A commercial project was completed three years ago. The owner discovers a water intrusion issue in the building envelope — a defect that traces back to the waterproofing subcontractor’s work. The owner files a warranty claim against the GC.
The GC’s risk manager pulls up the project file. The waterproofing sub had a valid COI at the time of construction. But that was three years ago. The sub has since changed insurance carriers, and the new policy doesn’t include additional insured coverage for the GC on completed operations. The CG2010 endorsement that was in place during construction was never renewed on the new policy.
The result: the GC’s own insurance has to respond to the claim — or worse, the GC is paying out of pocket. A compliance gap that nobody noticed for three years just became a six-figure problem.
How Most GCs Manage Warranty Compliance Today
The honest answer: most don’t.
Among the firms that do make an effort, the approach typically looks like this:
- Spreadsheets — An Excel file listing every subcontractor on every completed project, with columns for policy expiration dates. Someone is responsible for checking it periodically and reaching out to subs whose policies are approaching renewal.
- Cloud folders — A shared drive with project-by-project folders containing the original certificates. These serve as an archive, but they don’t track whether the policies are still active.
- Institutional memory — The compliance manager “just knows” which projects have warranty obligations and which subs need to be checked. This works until that person takes a different role, goes on leave, or leaves the company.
None of these approaches scale. And all of them depend on someone remembering to check — which means the moment that person gets busy with active projects (which is always), warranty compliance slides to the bottom of the priority list.
Why Your Current Compliance Tool Doesn’t Solve This
If you’re already using a COI tracking platform — whether it’s TrustLayer, myCOI, or another tool — you might assume this is handled. It’s not.
Most compliance platforms are designed around the active project lifecycle. They’re excellent at collecting certificates when a subcontractor is onboarding, verifying coverage during construction, and sending renewal reminders while the project is in progress. But once the project status changes to “complete,” the tracking workflow typically ends.
These platforms weren’t built with construction warranty obligations in mind. They were built for insurance verification across all industries — most of which don’t have multi-year post-completion compliance requirements. A property management company doesn’t need to track a vendor’s insurance for 10 years after a lease ends. A staffing firm doesn’t carry warranty exposure on temporary workers. But a general contractor does.
The result is a structural blind spot. Your compliance tool handles the 12–18 months of active construction, and then your team is back to spreadsheets and manual tracking for the 5–10 years that follow.
How Billy’s Warranty Mode Works
Billy is the only construction compliance platform with built-in warranty tracking. Here’s how it works:
The key difference is that Billy treats warranty tracking as a first-class feature, not an afterthought. The same AI-powered review, CRIS-certified team, and automated follow-up workflows that handle your active projects also handle your warranty projects — for as long as the warranty period runs.
Getting Started: What You Need to Know
If you’re a GC currently managing warranty compliance on spreadsheets (or not managing it at all), here’s how to get started:
Step 1: Inventory your warranty obligations. List every completed project that still has an active warranty period. Note the warranty end date, the number of subcontractors on each project, and the insurance requirements from the original contracts. Most firms are surprised by how large this list is.
Step 2: Assess your current risk. For each warranty project, determine whether you have current, verified certificates of insurance for every subcontractor. If you’re relying on original COIs from the time of construction, those policies have almost certainly been renewed (or not) since then. The certificate in your file may represent a policy that no longer exists.
Step 3: Evaluate your tools. If your current compliance platform doesn’t offer post-completion warranty tracking, you have a structural gap that manual processes can’t reliably fill at scale. This is where a construction-specific platform like Billy makes the most difference.
Billy’s Managed Service team can import your warranty projects, set warranty end dates, upload existing documentation, and begin automated tracking within your first two weeks on the platform. Your team’s job is to validate — Billy’s team does the heavy lifting.
Don’t Wait for the Next Warranty Audit
The question for most GCs isn’t whether they have warranty compliance gaps — it’s whether they’ll discover those gaps on their own terms or during a claim. One approach is proactive and costs time. The other is reactive and costs money.
See How Billy Handles Warranty Tracking →
Related resources: Compliance Tracking Software · AI Review Assistant · Managed Service Plan · Case Studies · Subcontractor Warranty Form Template · Free 2026 Audit Ready Checklist
