AIG vs CNA: How Do They Compare for Builders Risk Insurance?

AIG describes builders risk arrangements for varied project types and gives a standstill-extension example. CNA lists builders risk and explains project scope and coverage limitations, so buyers should compare the proposed forms and project schedules. 3,7

What Is AIG?

AIG is the marketing name for American International Group, Inc.; AIG says its insurance products are written or provided by subsidiaries or affiliates. Its U.S. business pages list commercial casualty, property, cyber, management and professional liability, and specialty programs, but a brand-level page does not identify the insurer for a particular policy. 1,2

Read the AIG profile

Read the AIG Builders Risk Insurance page

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

Read the CNA profile

Read the CNA Builders Risk Insurance page

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

Read the full coverage guide

Key Differences in Builders Risk Insurance

Project Breadth and Underwriting Fit

AIG describes builders risk solutions for small, mid-sized, and complex jobs, with domestic, multinational, and multi-year arrangements and options for wood-frame structures. CNA likewise identifies builders risk by construction-project scope and calls out project limitations in its published material. For a project with an unusual structure or schedule, neither broad description is an eligibility decision; give both insurers the construction type, location, timeline, and values for underwriting review. 3 7

Project Extensions and Policy Wording

AIG’s page illustrates coverage tailored to a standstill and an extension through the project’s remaining expected term. CNA’s record highlights that its coverage limitations must be read in the applicable form. Those claims point to a practical comparison: have each insurer identify whether the same interruption scenario is covered, then review conditions, extensions, and exclusions side by side. 3 8

What to Confirm in Builders Risk Insurance Quotes

  • Ask AIG whether the standstill example can be written for your project and what conditions apply. 3 8
  • Ask CNA to identify the applicable builders risk form and the project limitations that affect your construction type. 3 7
  • Provide both teams the same schedule, values, and project description so their quotes can be compared on equivalent facts. 3 8

Review Scores

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.

AIG

4.4/ 10

Review Score

2 rated sources

Customer ratings for AIG are low: Trustpilot shows 1.9 out of 5 from 252 reviews, and NerdWallet gives 2.5 stars and notes more claims complaints than expected. These pages cover many AIG products and countries, so they only loosely describe business insurance.[1][2]

Read AIG reviews

CNA

9.0/ 10

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 reviews

Offering Details

AIG vs CNA: Builders Risk Insurance: documented features by provider

CriteriaAIG Builders RiskBuilders Risk (Inland Marine)
Role in This Line

AIG markets Builders Risk as a construction property insurance solution for single projects and master programs. AIG is the marketing name; the page says products are written or provided by AIG subsidiaries or affiliates and does not identify the issuing company for a particular policy. 3Company-reported. AIG’s U.S. Builders Risk product page and its general legal footer. This establishes AIG’s marketed product and issuer structure, not the insurer on an individual quote, binder or policy.

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.

Who It’s For

The page describes solutions for a range of construction projects, including small, mid-sized and complex projects, and says AIG develops domestic, multinational and multi-year arrangements. It also describes customized options for wood-frame structures. These are marketed capabilities, not eligibility guarantees. 3Company-reported. Project types and program configurations stated on AIG’s U.S. Builders Risk page. The page does not provide a complete underwriting appetite or state-by-state availability schedule.

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

AIG describes tailoring project coverage to construction risks and gives an example of arranging coverage for a project standstill and an extension for the expected remaining project term. These examples do not establish that any buyer is entitled to a standstill extension or that it is included in a policy. 3Company-reported. AIG’s illustrative Builders Risk marketing examples. The page directs interested buyers to the actual policy for coverage scope, limitations, terms, conditions and exclusions.

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 product page does not state a standard policy limit, deductible or retention. AIG says coverage depends on the actual policy language; confirm the applicable amounts and conditions in the quote and issued policy. 3Not publicly disclosed. AIG’s U.S. Builders Risk marketing page as reviewed on 2026-09-30. No buyer-specific quote, declarations or policy form was reviewed; this is not a finding that such terms are unavailable from AIG.

Confirm in your quote.

Risk Services

AIG says its risk engineers can work with clients on loss-prevention improvements and customized service plans, including loss-control reports. The page describes these as risk services and does not make them policy coverage or a guaranteed loss outcome. 3Company-reported. Company-described services on the U.S. Builders Risk page; availability for a particular account is not specified.

Confirm in your quote.

Claims Support

AIG states that, after property-damage coverage is confirmed, it promises working funds equal to 50% of its share of the agreed property-damage estimate within seven days. This is AIG’s stated claim-funding service condition; the page does not make it a general claim-payment deadline or establish policy entitlement for every loss. 3Company-reported. Conditional company statement on the Builders Risk page. It applies only as described there and remains subject to the actual policy and claim circumstances.

Confirm in your quote.

Full Comparison

More AIG vs CNA Comparisons

Other Builders Risk Insurance Comparisons

Sources

AIG

  1. Investor Relations. American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
  2. Business. AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
  3. Builders Risk Insurance. AIG US; ‘Why choose AIG Builders Risk Insurance?’ and ‘AIG Advantage’: lines 242–280, including project scope, tailored solutions, risk engineering and conditional claim-funding statement; policy-language and coverage caveat lines 365–366; legal footer lines 411–415. Accessed 2026-09-30.

CNA

  1. 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.
  2. CNA Connect Small Businessowners Policy (BOP) | CNA Insurance. CNA; CNA Connect; coverages, product range, services. Accessed 2026-09-28.
  3. 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.
  4. 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.
  5. 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.

Builders Risk Insurance Guide

  1. Glossary of Insurance Terms. National Association of Insurance Commissioners; Builders’ Risk Policies; Ocean Marine; Auto Physical Damage; All-Risk. Accessed 2026-09-16.
  2. Commercial Insurance Guide. California Department of Insurance; Commercial Property; Inland Marine; What Should I Expect from a Broker-Agent. Accessed 2026-09-16.
  3. 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.
  4. Builders Risk Application Tip Sheet. US Assure; General policy application tips p.1; Remodeling tips p.2. Accessed 2026-09-16.

Updated . Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. The comparison applies the same criteria to both providers. Editorial policy. To suggest a correction, contact Spot with the page URL and supporting source.

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