Aon vs 
CNA: How Do They Compare for Builders Risk Insurance?
What Is Aon?
Aon’s U.S. Commercial Risk terms describe brokerage for certain insurance programs, while its Middle Market page describes a dedicated practice for mid-sized organizations across North America. The public materials reviewed do not identify the licensed producer or insurer for a particular placement. Ask which entity will produce each line and which insurer will issue the policy; request jurisdiction details for the proposed placement and ask how compensation and claim notice work for your account. 1,2
CNA Small Business Insurance: Products, Agents and Service
CNA directs small-business buyers to independent agents and describes CNA Connect as a businessowners policy for more than 600 small-business classes. Issuer and availability vary by policy and state, so confirm both in a quote. 4,5,6
What Is Builders Risk Insurance?
Builders risk protects the project you are building, including materials meant for it, against physical loss until construction ends. The gaps that cost owners money are materials in storage or transit, the existing building in a renovation, and coverage ending when you occupy early. 9,10,11,12
What Are the Key Differences Between Aon and CNA Builders Risk Insurance?
Product Classification and Perils
CNA places Builders Risk in its Inland Marine catalogue and describes project-property damage, with theft, vandalism, and natural disasters as examples. Aon lists Builders Risk under construction property and describes accidental damage to project property or materials during construction and operations. Those labels are not interchangeable policy forms: a buyer should map the project’s specific causes of loss and property locations to the insurer’s wording, including any flood or catastrophe conditions. 7 8 3
Project Advice and Policy Detail
Aon describes advisory work to understand project risks and develop transfer, management, or mitigation strategies. CNA’s reviewed builders-risk record identifies the line and examples of intended property damage but does not describe an equivalent project-advisory service. This is a difference in what the records document, not proof CNA offers no assistance. If risk engineering is part of the decision, request the named team, deliverables, and whether the service is included with the placement. 3 7
What Should You Confirm in Aon and CNA Builders Risk Insurance Quotes?
Aon and CNA Review Scores for 2026
These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.
Aon Review Score
Review Score
3 rated sources
Public ratings for Aon are low: Trustpilot shows 1.2 out of 5 from 782 reviews, and BBB shows 1.6 from five. Aon is a global firm, so those pages mostly reflect other parts of the business, not large U.S. commercial accounts.[4][6][7]
Read Aon reviewsCNA Review Score
Review Score
1 rated source
Customer feedback on CNA is mixed and hard to compare. NerdWallet gave it 4.5 out of 5 for manufacturers, while Trustpilot shows about 1.4 out of 5 from 49 mostly self-selected reviews.[1][5]
Read CNA reviewsAon vs CNA Builders Risk Insurance Compared
Aon vs CNA: Builders Risk Insurance: documented features by provider
| Criteria | Aon Builders Risk brokerage and risk-advisory offering | Builders Risk (Inland Marine) |
|---|---|---|
| Role in This Line | Aon says its global construction practice designs and places risk solutions and uses broking experience and a global network across construction insurance lines. For builders risk, this is evidence of Aon’s brokered market offering; the page does not identify the insurer for a buyer’s placement. 3Company-reported. Aon’s global construction and infrastructure practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement. | CNA lists Builders Risk under Inland Marine and Hull Builders Risk under Ocean Marine as separate catalogue items. 7Company-reported. The catalogue categories identify separate marketed products and do not determine which form fits a specific project. |
| Issuing Insurer | The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. 3Not found in reviewed sources. Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement. | Confirm in your quote. |
| Who It’s For | 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. 3Company-reported. Audience described for Aon’s global construction and infrastructure practice. It does not establish U.S. state availability or underwriting eligibility for a placement. | CNA’s Marine page categorizes Builders Risk under inland marine and separately lists Hull Builders Risk under ocean marine. 7Company-reported. The categories distinguish land construction risks from marine hull projects; neither listing guarantees that CNA will quote a project. |
| Coverage Features | Aon lists Builders Risk under construction property and says its construction property offering can address accidental damage to project property or materials during construction and operations. That is a broker’s description of the line, not a grant of coverage for a buyer. 3Company-reported. Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage. | CNA lists Builders Risk among Inland Marine coverages and describes property-damage cover for construction projects in its marine brochure. 7,8Company-reported. This is company marketing, not a coverage grant; policy wording and project facts control. The brochure gives natural-disaster, vandalism and theft as examples of project property damage the product is intended to address. 8Company-reported. The examples are not a complete peril list; the source directs buyers to the relevant policy for actual terms. |
| Limits and Retentions | The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. 3Not publicly disclosed. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed. | Confirm in your quote. |
| Risk Services | Aon describes project risk-advisory services to understand project-specific risks and develop risk-transfer, management or mitigation strategies. It also describes a global construction team and market access. These are company-reported brokerage and advisory services, not coverage benefits. 3Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated. | Confirm in your quote. |
Related Pages for Aon vs CNA Builders Risk Insurance
Builders Risk Insurance Pages for Aon and CNA
Other Coverage Lines Compared for Aon vs CNA
Other Builders Risk Insurance Provider Comparisons
Sources for Aon vs CNA Builders Risk Insurance
Sources About Aon
- Commercial Risk Solutions U.S. Brokerage Terms of Service. Aon; Lines 120–127: certain-program broker-of-record scope, consultation, application assistance, client signature and bind instruction, and account administration; lines 140–147: variable and contingent compensation, potential placement incentive, and client request route; lines 206–213: no price guarantee and surplus-lines limitations; lines 229–231: client insurer-notice duty unless separately agreed. Accessed 2026-09-29.
- Middle Market Clients. Aon; Lines 125–132: mid-sized organizations and middle-market framing; lines 165–173: dedicated practice and North America statement; lines 188–224: Commercial Risk capabilities. No numeric company-size cutoff or U.S.-only eligibility rule is stated on the reviewed page. Accessed 2026-09-29.
- Construction and Infrastructure Insurance and Risk Management. Aon; Construction client audience and global placement role, lines 123–126; offering descriptions lines 135–156; coverage-area taxonomy lines 167–195; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. Accessed 2026-09-30.
Sources About CNA
- Insurance for Small Businesses. CNA; Insurance for Small Businesses, lines 38-50 and 65-67 (CNA Central and agent route); lines 79-106 (product and stated appetite lists); page footer line 132 (CNA registered service mark). Accessed 2026-09-28.
- CNA Connect Small Businessowners Policy (BOP) | CNA Insurance. CNA; CNA Connect; coverages, product range, services. Accessed 2026-09-28.
- General Disclaimer. CNA; General Disclaimer paragraphs 1 and 5 (HTML lines 24 and 28): CNA describes Continental Casualty Company and its relevant affiliates; references to CNA may include one or more CCC affiliates; each particular policy/product/service is the responsibility only of the specific CNA company that issues or supplies it. Footer line 57 identifies CNA Financial Corporation as trademark registrant. Re-read 2026-09-29. Accessed 2026-09-29.
- Inland & Ocean Marine Insurance. CNA; U.S. page, sections Inland Marine and Ocean Marine: Builders Risk listed among inland products and Hull Builders Risk among ocean products; page retrieved through official-site search 2026-09-30. Accessed 2026-09-30.
- Marine Capabilities Brochure. CNA; Additional Offerings section: Builders Risk for construction projects with property damage from named examples; brochure product overview, not policy wording. Official document retrieved 2026-09-30. Accessed 2026-09-30.
Sources for the Builders Risk Insurance Guide
- Glossary of Insurance Terms. National Association of Insurance Commissioners; Builders’ Risk Policies; Ocean Marine; Auto Physical Damage; All-Risk. Accessed 2026-09-16.
- Commercial Insurance Guide. California Department of Insurance; Commercial Property; Inland Marine; What Should I Expect from a Broker-Agent. Accessed 2026-09-16.
- Builders Risk Coverage Form. Insurance Services Office, Inc.; hosted by Touchpoint Markets; A.1–3 p.1; B.3.c p.11; C,D,E p.12. Accessed 2026-09-16.
- Builders Risk Application Tip Sheet. US Assure; General policy application tips p.1; Remodeling tips p.2. Accessed 2026-09-16.
