An umbrella, or excess, policy does one thing no primary policy does: it extends the limit. When a jobsite loss, an auto claim, or a serious injury exhausts the underlying general liability, commercial auto, or employer’s liability policy, the excess layer responds above it, generally following the same terms. A contractor’s program is therefore a tower — a primary layer at the base, then successive excess layers stacked to whatever height the contract, the lender, or prudence requires. The tower is only as sound as its weakest attachment, and in 2026 the weak point has a specific address.
That address is the lead layer. The first $1 million to $2 million of excess — the lead umbrella that attaches directly above the primary — has become the firmest and most difficult part of the tower to place. Carriers price this layer closest to the loss activity, and it is where the year’s increases concentrate. Higher excess layers, above roughly $10 million, are stabilizing as more carriers compete for the remote risk, but the lead layer sets the tone for the whole placement. Willis Towers Watson’s 2026 construction outlook puts excess liability increases in a range of 7 to 40 percent and umbrella at 5 to 30 percent, against general liability at flat to 10 percent.
The pressure behind those numbers is not abstract. Nuclear verdicts — jury awards exceeding $10 million — reached roughly $14.5 billion in aggregate in 2023, a fifteen-year high, and the count of awards above $100 million has continued to climb. United States liability claim costs rose 57 percent over the past decade, and social inflation, the growth in claim severity beyond ordinary economic inflation, reached a twenty-year high near 7 percent annually. For construction, where a single catastrophic injury or a structural failure can produce a nine-figure demand, that severity lands squarely on the excess tower rather than the primary.
This reframes what limit adequacy even means. A limit that looked generous five years ago may now sit below a plausible verdict. Contractors who set their tower height by habit — the same $5 million that satisfied a general contractor’s requirement a decade ago — are quietly underinsured against the very awards driving the market. The question is no longer what the contract requires; it is what a bad day would actually cost, and the two answers have diverged.
The tower’s integrity also depends on the underlying limits the excess requires. If a primary general liability policy carries a $1 million per-occurrence and $2 million aggregate limit while the umbrella demands that same amount as underlying, a gap can open the moment the aggregate erodes mid-year on an unrelated claim — the umbrella may decline to drop down. Employer’s liability and commercial auto must also be scheduled as underlying, or a serious auto loss can pierce a gap the contractor never knew existed. Some of the largest nuclear verdicts have come from commercial auto, which makes the auto attachment a frequent failure point for contractors running fleets.
Construction liability is long-tail, and that lengthens the exposure the tower must answer. A defect or an injury can surface years after a project closes, and the layer that responds is the one whose completed-operations coverage still reaches. Tennessee’s statute of repose bars most construction-defect actions four years after substantial completion, one of the shorter windows in the country, and that period shapes how long a contractor’s tail exposure actually runs. Aligning excess limits and completed-operations coverage to that window is a discipline, not a formality.
For contractors who enroll in owner- or contractor-controlled wrap-ups on large projects, the excess conversation grows another layer. The wrap provides project-specific excess for the enrolled work — and nothing else. The contractor’s own practice-program tower must still answer for everything outside that project: off-site fabrication, smaller jobs, and the automobile fleet. Assuming the wrap covers the whole business is a common and expensive error, and it is precisely the kind of gap that surfaces only after a loss.
Our four-step Strategic Process is built to keep the tower honest. Strategic Discovery maps the contract requirements, the fleet, and the underlying limits the excess must sit above. Risk Assessment models the plausible severe loss rather than the historical average, so the tower’s height reflects today’s verdict environment rather than yesterday’s. Solution Design structures attachment points, underlying schedules, and the completed-operations tail against Tennessee’s repose period. Ongoing Optimization revisits the height as revenue, fleet size, and exposure change between renewals. In a market repricing severity this quickly, the contractors who treat limit adequacy as an owned decision, not a contractual minimum, are the ones who will not discover the ceiling of their tower in a courtroom.
— Ryan Mefford, President & Risk Advisor
Sources
- Willis Towers Watson — Insurance Marketplace Realities 2026: Construction
- Grit Insurance — 2026 Construction Insurance Market Outlook
- Claims Journal — Nuclear Verdicts and Social Inflation Data
- Marsh — Nuclear Verdicts and Their Impact on Casualty Insurance
- Swiss Re Institute — Social Inflation and Litigation Trends
- IRMI — Commercial Umbrella and Excess Liability
- Tenn. Code Ann. § 28-3-202 — Construction Statute of Repose