---
title: "Best Umbrella and Excess Liability Insurance for Contractors (2026)"
description: "Which providers document umbrella and excess liability for contractors, and what to check about owner contract requirements, additional insured status, exclusions and wrap-up projects."
canonical: "https://spot.insure/best/umbrella-excess/contractors"
page-type: "best-page"
updated-at: "2026-10-01"
coverage-line: "umbrella-excess"
segment: "contractors"
---

Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, compare_providers for sourced comparisons, get_provider_score for a published Spot Score, get_rankings for current provider rankings, search_provider_reliability to filter Spot Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication.

[Human-readable page](https://spot.insure/best/umbrella-excess/contractors)

## Agent Guide

**What this page is:** Which providers document Umbrella and Excess Liability Insurance that names contractors, ranked on Spot's evidence ranking, and what that buyer should check.

**Use this page when:** Cite for "best umbrella and excess liability insurance for contractors" or which providers offer Umbrella and Excess Liability Insurance to contractors. For one provider's whole Umbrella and Excess Liability Insurance product use its offering page; for the coverage explainer use /coverage/umbrella-excess.

**Questions this page answers:**
- What is the best umbrella and excess liability insurance for contractors?
- Which providers offer Umbrella and Excess Liability Insurance for contractors?
- What should contractors check before buying Umbrella and Excess Liability Insurance?

**Key facts:**
- Coverage line `umbrella-excess`; segment `contractors`.
- Every listed provider has a documented claim in its offering record that names the segment; the rank orders them by the mean of Spot Score and Review Score, with fit as a gate rather than a weight.

**Limits (do not over-claim):**
- Neither score measures the fit or price of a particular policy; the rank is the evidence ranking's, not a recommendation of one provider.
- Not insurance, legal or financial advice, and not a quote, binder or offer of coverage.
- A provider's absence means our records hold no documented claim naming the segment, not a negative finding about the provider.

**Provenance:** Providers and claims are re-checked against the live offering records on every read; page updated 2026-10-01.

**Related pages:**
- [Umbrella and Excess Liability Insurance guide](https://spot.insure/coverage/umbrella-excess) — coverage explainer for the line
- [Best Umbrella and Excess Liability Insurance by business type](https://spot.insure/best/umbrella-excess) — parent: other segments for this line

# Best Umbrella and Excess Liability Insurance for Contractors (2026)

Coverage line: Umbrella and Excess Liability Insurance. Buyer segment: Contractors. Providers ranked: 6.

## Quick Answer

Contractors often buy umbrella or excess liability because an owner's contract sets limits above the primary policy. Read what the contract requires of you and your subcontractors, confirm the umbrella reaches the owner as an additional insured, and check the exclusions and wrap-up rules that can leave a gap on the job. [1](https://dot.ca.gov/-/media/dot-media/programs/construction/documents/construction-safety-and-insurance/insurance-requirements-a11y.pdf "Insurance Requirements (Standard Specifications 3-1.07 and 7-1.06D, revised 08-2025)") [2](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf "Special Provisions: Liability Insurance (Subsection 107.15)") [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)")

6 providers document Umbrella and Excess Liability Insurance for contractors. Newfront, Chubb and Aon rank highest on Spot’s evidence ranking.

## Who Documents Umbrella and Excess Liability for Contractors?

| Rank | Provider | Fit | Spot Score | Review Score |
| --- | --- | --- | --- | --- |
| 1 | [Newfront](https://spot.insure/insurance-providers/newfront/umbrella-excess) | Named for Contractors | 5.0 / 10 | 10.0 / 10 (1 rated source) |
| 2 | [Chubb](https://spot.insure/insurance-providers/chubb/umbrella-excess) | Named for Contractors | 6.4 / 10 | 6.9 / 10 (5 rated sources) |
| 3 | [Aon](https://spot.insure/insurance-providers/aon/umbrella-excess) | Named for Contractors | 6.7 / 10 | 6.1 / 10 (3 rated sources) |
| 4 | [Berkshire Hathaway Specialty Insurance](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance/umbrella-excess) | Named for Contractors | 7.0 / 10 | No review score |
| 5 | [Alliance Risk](https://spot.insure/insurance-providers/alliance-risk/umbrella-excess) | Named for Contractors | 5.8 / 10 | No review score |
| 6 | [Kinro](https://spot.insure/insurance-providers/kinro/umbrella-excess) | Named for Contractors | 5.0 / 10 | No review score |

### 1. Newfront

Spot Score basis: Broker Spot Score · Assessed 2026-09-22 · Newfront Insurance Services and the contracting US brokerage entity identified in current Newfront materials, with business-insurance….

- Newfront says its Casualty team protects companies of every size and scope, and lists industry verticals it serves, including construction, manufacturing, technology, and life science, without a stated minimum size or premium threshold for umbrella/excess placements specifically. [11](https://www.newfront.com/casualty-insurance "Casualty") (Evidence: Company-reported; scope: Casualty page intro and Areas of Expertise list.)

Full page: [Newfront Umbrella and Excess Liability Insurance](https://spot.insure/insurance-providers/newfront/umbrella-excess).

### 2. Chubb

Spot Score basis: Carrier & MGA Spot Score · Assessed 2026-09-23 · Chubb Limited as group parent and the exact US insurer entities in the cited materials. Current authority is independently verified for….

- Chubb structures umbrella and excess casualty into separate options for large global and national companies, mid-sized companies, the energy industry, and the construction industry, saying it tailors solutions to each segment's exposures. [12](https://www.chubb.com/us-en/business-insurance/umbrella-excess-casualty.html "Umbrella & Excess Casualty Insurance") (Evidence: Company-reported; scope: Umbrella & Excess Casualty Insurance Options section.)

Full page: [Chubb Umbrella and Excess Liability Insurance](https://spot.insure/insurance-providers/chubb/umbrella-excess).

### 3. Aon

Spot Score basis: Broker Spot Score · Assessed 2026-09-29 · Aon group commercial insurance brokerage, assessed at brand level from Aon's published terms, its 2025 SEC filing, and U.S., U.K. and Irish….

- Aon describes its global construction and infrastructure practice as serving contractors, owners, developers, engineers, architects, designers, financiers and investors, and says it works with organizations of varied sizes and complexity. [13](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Audience described for Aon’s global construction and infrastructure practice. It does not establish U.S. state availability or underwriting eligibility for a placement.)

Full page: [Aon Umbrella and Excess Liability Insurance](https://spot.insure/insurance-providers/aon/umbrella-excess).

### 4. Berkshire Hathaway Specialty Insurance

Spot Score basis: Carrier & MGA Spot Score · Assessed 2026-09-29 · Berkshire Hathaway Specialty Insurance Company (BHSIC, NAIC 22276) as a U.S. admitted insurer, using Nebraska and New York regulator….

- BHSI lists manufacturers/distributors, real estate, grocery, financial institutions, construction, energy and trucking as umbrella/excess targets. [14](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") (Evidence: Company-reported; scope: BHSI US lead umbrella/excess casualty targets. Material limitation: Targets remain subject to restrictions and underwriting appetite.)

Full page: [Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance/umbrella-excess).

### 5. Alliance Risk

Spot Score basis: Broker Spot Score · Assessed 2026-09-22 · Alliance Risk Insurance Services LLC, the subsidiary agency named in Alliance's terms and the single licensee of record under National….

- Alliance Risk says umbrella and excess coverage is commonly needed by construction firms, manufacturers and distributors, retailers and hospitality businesses, and logistics and transportation companies with large vehicle fleets. [15](https://joinalliancerisk.com/umbrella-excess-liability-insurance/ "Umbrella & Excess Liability Insurance") (Evidence: Company-reported; scope: Umbrella & Excess Liability Insurance page, "Who Needs" section.)

Full page: [Alliance Risk Umbrella and Excess Liability Insurance](https://spot.insure/insurance-providers/alliance-risk/umbrella-excess).

### 6. Kinro

Spot Score basis: Broker Spot Score · Assessed 2026-09-22 · Kinro Insurance Services LLC and the Kinro/Kinro AI technology-enabled distribution service for U.S. small-business commercial insurance.….

- Kinro says umbrella/excess coverage commonly fits contractors, property owners, restaurants and fleet risks, and typically comes up when a contract asks for limits higher than the primary policy provides. [16](https://kinro.com/products/umbrella-excess "Umbrella / Excess Liability") (Evidence: Company-reported; scope: Umbrella / Excess Liability page "Common fit" and "Triggers" sections.)

Full page: [Kinro Umbrella and Excess Liability Insurance](https://spot.insure/insurance-providers/kinro/umbrella-excess).

## How Did Spot Rank Umbrella and Excess Liability for Contractors?

Spot lists a provider only when its published Umbrella and Excess Liability Insurance information includes a documented claim (verified or company-reported) about eligibility, role, coverage or application that mentions contractors. “Named for Contractors” marks a provider’s own statement of who it serves; “Related mention” marks a role, coverage or application claim.

Providers with both a Spot Score and a Review Score rank first, then providers with one of the two, then providers with neither. Within each group the order is the equal-weight average of the scores the provider has, as in the industry guides; ties break on fit, then the number of documented claims, then name.

The Spot Score comes from Spot’s reliability assessments and the Review Score from the provider’s rated review sources. Neither measures whether a policy fits your business or what it costs.

Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. [Editorial policy](https://spot.insure/editorial-policy).

## What Do Contractors Need From Umbrella and Excess Liability Insurance?

The owner sets the number and the shape. Caltrans requires umbrella or excess liability on top of general liability, scales the required limit to the contract's total bid, and requires a clause that takes effect (drops down) if primary limits are impaired or exhausted. Nebraska's transportation department requires an umbrella written in excess of employers liability, general liability and auto liability. The University of Alabama lets primary and umbrella limits combine and raises the required umbrella by any shortfall in the primary. Requirements differ widely, so read each contract. [1](https://dot.ca.gov/-/media/dot-media/programs/construction/documents/construction-safety-and-insurance/insurance-requirements-a11y.pdf "Insurance Requirements (Standard Specifications 3-1.07 and 7-1.06D, revised 08-2025)") [2](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf "Special Provisions: Liability Insurance (Subsection 107.15)") [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements")

Subcontractor rules differ as well. New York's transportation department requires umbrella or excess from prime contractors and says it is not required for subcontractors. The University of Alabama's form carries its $1,000,000 umbrella requirement down to subcontractors. Caltrans tells prime contractors not to require a small-business subcontractor to carry limits above its table, measured by the dollar value of the subcontracted work. Know what you must flow down before you sign. [1](https://dot.ca.gov/-/media/dot-media/programs/construction/documents/construction-safety-and-insurance/insurance-requirements-a11y.pdf "Insurance Requirements (Standard Specifications 3-1.07 and 7-1.06D, revised 08-2025)") [3](https://www.dot.ny.gov/main/business-center/contractors/construction-division/construction-repository/CAM_Sect107-06.pdf "Section 107-06 Insurance (Construction Administration Manual)") [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements")

Some owners want to sit on the umbrella too. Nebraska's transportation department, Indiana University and the University of Alabama each require additional insured status on the umbrella or excess policy, and Indiana wants the certificate to say the excess follows form. In ISO's commercial umbrella form as issued by one carrier, an additional insured on an underlying policy is automatically an insured on the umbrella, but when a contract requires it, the most paid for that insured is the contract's required amount less amounts payable by underlying insurance, or the umbrella limit if less, and never broader than the underlying coverage. [2](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf "Special Provisions: Liability Insurance (Subsection 107.15)") [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements") [5](https://inlocc.iu.edu/policies/insurance-requirements.html "Minimum Insurance Requirements for Construction and Professional Design Contracts") [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)")

## Which Umbrella and Excess Exposures Do Contractors Face?

Exclusions that matter to contractors sit in the base form. In ISO's umbrella form as issued by one carrier, the exclusions include any obligation under a workers' compensation law and bodily injury or property damage due to professional services, which the form says includes inspection, supervision, quality control, architectural or engineering activities on a project where you serve as construction manager, and approving shop drawings, field orders, change orders or specifications. The Insurance Information Institute says most umbrellas also exclude employment practices, professional liability, product recall, asbestos, pollution, war and terrorism. [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)") [10](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance "Liability Insurance (Insuring Your Business: A Small Business Owner's Guide to Insurance)")

The umbrella assumes your primary policies are in force. The form requires underlying insurance to be maintained; failure to maintain it does not invalidate the umbrella, but the umbrella then applies as if the underlying were in full effect, so you absorb the gap. Its employers liability and pollution exclusions do not apply to the extent valid underlying insurance for those risks exists, and the umbrella then follows the underlying terms. [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)")

Defense changes above the primary. In the form, the umbrella has the duty to defend when underlying insurance does not provide coverage or its limits are exhausted, the duty transfers to it once underlying limits are used up in judgments or settlements, and defense expenses it pays under supplementary payments do not reduce its limits. Ask whether your quote reads the same way. [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)")

Exclusion endorsements are where contractors lose cover. The University of Colorado's construction contract lets umbrella or excess meet its limits only if written on a following form basis, and it prohibits CGL endorsements that exclude damage to work performed by a subcontractor or vendor, modify the definition of insured contract, or, where they apply to the work, exclude residential or multi-family work, exterior insulation finish systems, or subsidence or earth movement. [6](https://www.cu.edu/doc/1construction-contracts.pdf "Insurance Requirements (construction contract insert)")

## What Should Contractors Check Before Buying Umbrella and Excess Liability Insurance?

Match the underlying schedule to your policies. The Insurance Information Institute says underlying policies are listed with their limits on the umbrella and are typically your primary general liability, auto liability and the employer's liability section of your workers' compensation policy. Confirm each is scheduled at the limit you carry, and what you must keep in force. [10](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance "Liability Insurance (Insuring Your Business: A Small Business Owner's Guide to Insurance)")

Ask for the list of endorsements before you bind. One issued umbrella policy lists, among its forms, a construction operations exclusion, a limitation of coverage to a designated premises or project, and an endorsement making coverage no broader than scheduled underlying insurance. Compare the list with the contract's drop-down, follow-form and additional-insured clauses. [1](https://dot.ca.gov/-/media/dot-media/programs/construction/documents/construction-safety-and-insurance/insurance-requirements-a11y.pdf "Insurance Requirements (Standard Specifications 3-1.07 and 7-1.06D, revised 08-2025)") [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)")

Match duration and aggregates to the contract. Washington's transportation department requires products and completed operations coverage for at least 3 years after substantial completion and per-project aggregates; Nebraska's, 3 years after final acceptance and payment; the University of Alabama, a minimum of two years after completion; Indiana University, the warranty period for all its required insurance, usually five years. Ask whether your umbrella will be renewed for that long. [2](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf "Special Provisions: Liability Insurance (Subsection 107.15)") [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements") [5](https://inlocc.iu.edu/policies/insurance-requirements.html "Minimum Insurance Requirements for Construction and Professional Design Contracts") [7](https://wsdot.wa.gov/sites/default/files/2026-06/XE3753_pt2_08-Exhibit-5-WSDOT-2026-Std-Specs-Sec-1.07.18.pdf "Exhibit 5, Standard Specifications Section 1-07.18 Public Liability and Property Damage Insurance")

Ask how a wrap-up project changes your limits. Under the New Jersey Schools Development Authority's owner-controlled program, enrolled contractors leave the cost of onsite workers' compensation, employer's liability and general liability, primary and excess, out of their bids and are told to notify their insurers to endorse their policies to be excess and contingent over the program for onsite work; offsite operations are not covered. Washington's transportation department, by contrast, bars wrap-up policies from satisfying its insurance section. [7](https://wsdot.wa.gov/sites/default/files/2026-06/XE3753_pt2_08-Exhibit-5-WSDOT-2026-Std-Specs-Sec-1.07.18.pdf "Exhibit 5, Standard Specifications Section 1-07.18 Public Liability and Property Damage Insurance") [8](https://www.njsda.gov/Content/Business/forms/OCIP_V_Manual.pdf "OCIP V Insurance Manual")

## What Do Contractors Ask About Umbrella and Excess Liability Insurance?

### Do Contractors Need Umbrella or Excess Liability Insurance?

Often because a contract or owner requires it, and requirements vary. Caltrans, Nebraska's transportation department and the University of Alabama require umbrella or excess; Indiana University says excess is not required per se but its dollar requirements can be met by combining primary and excess. Read the insurance clause of each contract. [1](https://dot.ca.gov/-/media/dot-media/programs/construction/documents/construction-safety-and-insurance/insurance-requirements-a11y.pdf "Insurance Requirements (Standard Specifications 3-1.07 and 7-1.06D, revised 08-2025)") [2](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf "Special Provisions: Liability Insurance (Subsection 107.15)") [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements") [5](https://inlocc.iu.edu/policies/insurance-requirements.html "Minimum Insurance Requirements for Construction and Professional Design Contracts")

### Does Umbrella Insurance Cover Contractors for Professional Services?

Usually not. ISO's umbrella form as issued by one carrier excludes bodily injury or property damage due to professional services, including inspection and supervision where you act as construction manager, and the Insurance Information Institute says most umbrellas exclude professional liability. Ask about a separate professional policy. [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)") [10](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance "Liability Insurance (Insuring Your Business: A Small Business Owner's Guide to Insurance)")

### Can Contractors Combine Primary and Umbrella Limits to Meet a Contract?

Often, if the contract says so. Indiana University and the University of Alabama let required limits be met by a combination of primary and excess coverage, and the University of Colorado accepts umbrella only on a following form basis. Confirm in the contract. [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements") [5](https://inlocc.iu.edu/policies/insurance-requirements.html "Minimum Insurance Requirements for Construction and Professional Design Contracts") [6](https://www.cu.edu/doc/1construction-contracts.pdf "Insurance Requirements (construction contract insert)")

### Must Contractors Name the Owner as an Additional Insured on the Umbrella?

Where the contract says so. Nebraska's transportation department, Indiana University and the University of Alabama require it. ISO's umbrella form as issued by one carrier extends additional insured status from the underlying policy, capped at what the contract requires. [2](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf "Special Provisions: Liability Insurance (Subsection 107.15)") [4](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf "Section 007316 Insurance Requirements") [5](https://inlocc.iu.edu/policies/insurance-requirements.html "Minimum Insurance Requirements for Construction and Professional Design Contracts") [9](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf "Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)")

## Related Pages for Umbrella and Excess Liability for Contractors

- [Best Builders Risk Insurance for Contractors](https://spot.insure/best/builders-risk/contractors)
- [Best Business Owner’s Policy for Contractors](https://spot.insure/best/business-owners-policy/contractors)
- [Best General Liability Insurance for Contractors](https://spot.insure/best/general-liability/contractors)
- [Best Inland Marine Insurance for Contractors](https://spot.insure/best/inland-marine/contractors)
- [Best Surety Bonds for Contractors](https://spot.insure/best/surety-bonds/contractors)
- [Best Workers’ Compensation Insurance for Contractors](https://spot.insure/best/workers-compensation/contractors)
- [Construction Insurance Guide](https://spot.insure/industries/construction)
- [Coverage Guide: Umbrella and Excess Liability Insurance](https://spot.insure/coverage/umbrella-excess)
- [All Best Umbrella and Excess Liability Insurance Pages](https://spot.insure/best/umbrella-excess)

## Sources for Umbrella and Excess Liability Insurance for Contractors

1. [Insurance Requirements (Standard Specifications 3-1.07 and 7-1.06D, revised 08-2025)](https://dot.ca.gov/-/media/dot-media/programs/construction/documents/construction-safety-and-insurance/insurance-requirements-a11y.pdf). California Department of Transportation; 7-1.06D(2) Liability Limits/Additional Insureds: table and footnotes b and c. Accessed 2026-10-01.
2. [Special Provisions: Liability Insurance (Subsection 107.15)](https://dot.nebraska.gov/media/m1za3yxf/current-lpa-projects-special-provisions-for-liability-insurance.pdf). Nebraska Department of Transportation; 1.a General Liability; 1.d Umbrella/Excess. Accessed 2026-10-01.
3. [Section 107-06 Insurance (Construction Administration Manual)](https://www.dot.ny.gov/main/business-center/contractors/construction-division/construction-repository/CAM_Sect107-06.pdf). New York State Department of Transportation; I. General; II. Insurance for Subcontractors. Accessed 2026-10-01.
4. [Section 007316 Insurance Requirements](https://constructionpublicinfo.ua.edu/wp-content/uploads/Front-End-Docs/Category-2-Contract-Requirements/Insurance-Requirements.pdf). The University of Alabama; Limits; Subcontractors; Additional Insureds; completed-operations duration. Accessed 2026-10-01.
5. [Minimum Insurance Requirements for Construction and Professional Design Contracts](https://inlocc.iu.edu/policies/insurance-requirements.html). Indiana University, Office of Insurance and Claims Administration; Excess/Umbrella; Insurance Policy Endorsements; warranty period. Accessed 2026-10-01.
6. [Insurance Requirements (construction contract insert)](https://www.cu.edu/doc/1construction-contracts.pdf). University of Colorado; Commercial General Liability: following form umbrella; prohibited endorsements. Accessed 2026-10-01.
7. [Exhibit 5, Standard Specifications Section 1-07.18 Public Liability and Property Damage Insurance](https://wsdot.wa.gov/sites/default/files/2026-06/XE3753_pt2_08-Exhibit-5-WSDOT-2026-Std-Specs-Sec-1.07.18.pdf). Washington State Department of Transportation; General Requirements for Insurance, items 2 and 3 (wrap-up policy; per-project aggregate; 3 years following substantial completion). Accessed 2026-10-01.
8. [OCIP V Insurance Manual](https://www.njsda.gov/Content/Business/forms/OCIP_V_Manual.pdf). New Jersey Schools Development Authority; OCIP Overview; Description of OCIP Coverages (offsite operations). Accessed 2026-10-01.
9. [Commercial umbrella policy using ISO form CU 00 01 04 13 (2025-2026 policy posted by a condominium association)](https://deerpointefl.com/wp-content/uploads/2026/02/Insurance-Westchester-Commercial-Umbrella-2025-2026.pdf). ISO form as issued by a carrier; Section I Coverage A exclusions (workers compensation and similar laws; employers liability; pollution; professional services); Section II Who Is An Insured 3; Section IV conditions on underlying insurance and transfer of defense; Supplementary Payments; schedule of forms. Accessed 2026-10-01.
10. [Liability Insurance (Insuring Your Business: A Small Business Owner's Guide to Insurance)](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance). Insurance Information Institute; Umbrella Liability Insurance. Accessed 2026-10-01.
11. [Casualty](https://www.newfront.com/casualty-insurance). Newfront. Accessed 2026-09-23.
12. [Umbrella & Excess Casualty Insurance](https://www.chubb.com/us-en/business-insurance/umbrella-excess-casualty.html). Chubb. Accessed 2026-09-23.
13. [Construction and Infrastructure Insurance and Risk Management](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management). Aon. Accessed 2026-09-30.
14. [Casualty](https://www.bhspecialty.com/us-products/us-casualty/). Berkshire Hathaway Specialty Insurance. Accessed 2026-09-28.
15. [Umbrella & Excess Liability Insurance](https://joinalliancerisk.com/umbrella-excess-liability-insurance/). Alliance Risk. Accessed 2026-09-23.
16. [Umbrella / Excess Liability](https://kinro.com/products/umbrella-excess). Kinro. Accessed 2026-09-23.

## How to Cite Umbrella and Excess Liability Insurance for Contractors

Best Umbrella and Excess Liability Insurance for Contractors (2026). Spot, updated 2026-10-01. https://spot.insure/best/umbrella-excess/contractors. Quote a provider’s claim with its numbered source.

Updated 2026-10-01.

## Agent and Developer Resources

- [Markdown page](https://spot.insure/best/umbrella-excess/contractors.md)
- [Developer resources](https://spot.insure/developers)
- [Public MCP server](https://spot.insure/mcp)
- [MCP server manifest](https://spot.insure/server.json)
- [OpenAPI description](https://spot.insure/openapi.json)
- [Public page index](https://spot.insure/llms.txt)