I see this all the time: a straightforward mess (wet drywall, damaged finishes, ruined materials) turns into a debate about calendars. Insurance follows policy wording and timing. So, a loss that started during construction but shows up after move-in quickly becomes: which policy year is this actually in?
The three coverages that usually show up (sometimes all at once)
Builder’s Risk (Course of Construction) is the first-party property coverage for the works while you’re building — materials, labour, temporary structures and sudden accidental physical damage. The part people miss is the timing: it often ends at substantial completion, occupancy or intended use… not when the last contractor leaves.
Wrap-Up liability (OCIP/CCIP) is the project-specific third-party liability coverage for enrolled contractors and trades. It usually comes with a completed-operations tail (often 12, 24 or 36 months), and the aggregate limits are shared across everyone enrolled — which matters a lot once claims start stacking up.
Trade contractor CGL can be the next stop if the Wrap-Up doesn’t respond — like when a contractor isn’t enrolled or when a claim lands after the Wrap-Up completed-ops period ends.
Where things get awkward: Builder’s Risk can end before the work feels “done”
Here’s where it gets awkward. Builder’s Risk can end while the job still feels very much “alive” — punch-list work, finishing work, trades everywhere.
In practice, it typically terminates around substantial completion, partial or full occupancy, or when the building starts being used for its intended purpose.
When a loss hits in that in-between window, I usually see the file pivot fast: now we’re talking liability coverage, either the Wrap-Up program or a contractor’s CGL depending on what’s in force and who’s enrolled.
The sneaky stuff: Hidden damage doesn’t care what policy you wished you had
Then there’s the sneaky stuff: water infiltration, structural issues, installation failures, the kind that starts during construction and stays hidden inside wall assemblies or building systems.
It can show up months (or years) later. Occurrence-based coverage generally cares about when the damage happened, not when someone noticed it, which is why timing arguments get real, real fast.
If damage develops gradually, pinning down the “trigger” can be tough, and multiple policy periods can get pulled in sometimes with different insurers each year. That’s when multi-year allocation discussions show up, defence costs climb and policy aggregates start to matter in a very practical way.
Add provincial limitation periods for Builder’s Risk, plus the Wrap-Up completed-operations tail expiring, and you can end up with a gap where the loss has real origins, but no policy is clearly obligated to respond.
Seen it, lived it
Picture a project mid-stream. The roof isn’t finished yet and then the weather shows up at exactly the wrong time. Rain hits the unfinished roof, insulation and interior materials get soaked, and suddenly everybody wants answers. That’s usually the clean one: first-party damage to the works while the project is under construction. Builder’s Risk territory.
Now fast-forward. Water infiltration started during construction, but it stayed hidden in wall assemblies. Months after substantial completion, once occupants have moved in, the damage finally shows. And this is where things slow down: Builder’s Risk may already be off, so everyone has to work backwards to figure out when the damage began and whether the answer is Builder’s Risk, the Wrap-Up program or a contractor’s CGL.
What I push for is simple: don’t wait for the claim to find the policy seams. Get clear on when Builder’s Risk terminates, how you’ll handle losses that emerge late and when responsibility shifts from construction to completed operations.
When we do that upfront, the claim moves faster later, less second-guessing, less delay and a lot fewer surprises.
Bottom line: in construction claims, coverage is determined by policy periods and termination triggers — not project timelines.
