AIG vs 
Berkshire Hathaway Specialty Insurance: How Do They Compare for Builders Risk Insurance?
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
What Is Berkshire Hathaway Specialty Insurance?
BHSI provides commercial and specialty insurance in the U.S., with product-specific industry lists that include healthcare, energy and technology. Online quote and application submissions are nonbinding. 4,5,6,7
Read the Berkshire Hathaway Specialty Insurance profile
Read the Berkshire Hathaway Specialty Insurance 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. 10,11,12,13
Key Differences in Builders Risk Insurance
Tailored Project Terms and Form Options
AIG illustrates tailoring coverage to a construction standstill and extending protection for the expected remaining term, while noting that the actual policy governs. Berkshire Hathaway Specialty Insurance (BHSI) lists all-risk, single-peril, and difference-in-conditions choices, plus primary and excess positions. For a project with unusual delay or property exposures, compare the actual proposed forms and ask which structure addresses each risk; the menu alone does not establish that a specific option is available. 3 8
Project Appetite and Underwriting Submission
AIG describes solutions for small, mid-sized, and complex projects, including domestic, multinational, and multi-year arrangements. BHSI separates its erection-all-risk and construction-all-risk target classes and says it considers Master Builder’s Risk selectively. BHSI also says underwriters may request project description, schedule, contractor loss experience, and coverage specifications. Share those details early and ask both teams to confirm fit before comparing terms. 3 8
What to Confirm in Builders Risk Insurance Quotes
- Ask AIG how the standstill and extension example would be reflected in the policy, including its conditions. 3 9
- Ask BHSI whether the project fits its EAR/CAR appetite and whether master coverage is being considered. 3 8
- Compare BHSI’s available policy forms with AIG’s proposed wording, limits, and extensions for the same project. 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
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 reviewsBerkshire Hathaway Specialty Insurance
Review Score
The public ratings for Berkshire Hathaway Specialty Insurance are low but thin: Trustpilot shows 2.1 out of 5 from 9 reviews and BBB shows 1 out of 5 from 6. Both mix travel and commercial customers, so we don't count them in a score.[5][7]
Read Berkshire Hathaway Specialty Insurance reviewsOffering Details
AIG vs Berkshire Hathaway Specialty Insurance: Builders Risk Insurance: documented features by provider
| Criteria | AIG Builders Risk | Builder’s Risk |
|---|---|---|
| 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. | BHSI describes primary and excess options for its Builder’s Risk products, along with single-peril and difference-in-conditions choices. 8Company-reported. These are marketed placement options, not a commitment to provide any layer or a statement about how a specific project is insured. |
| 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. | BHSI separates its EAR and CAR target categories; it says Master Builder’s Risk is considered selectively. 8Company-reported. The published target categories guide submission discussions; they do not guarantee eligibility or acceptance. |
| 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. | BHSI describes Builder’s Risk as project property coverage and lists hot testing/commissioning, delay and soft-cost features. 8Company-reported. U.S. product-page marketing summary; does not establish that each extension is included in every project policy. The page describes primary and excess placements and single-peril or difference-in-conditions options alongside its all-risk product description. 8Company-reported. These are marketed options, not a statement that a particular quote includes them. BHSI lists its Builder’s Risk Form, follow-form quota-share or excess forms, and broker manuscript forms as options. 9Company-reported. A form being listed does not establish that it will be used for a project or what its final terms contain. |
| 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. |
| How to Apply | Confirm in your quote. | BHSI says underwriting may request coverage specifications, a project description, contractor loss experience and a construction schedule, among other project details. 9Company-reported. The guide gives examples rather than a universal or complete checklist; requirements depend on the submission. |
| 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 Berkshire Hathaway Specialty Insurance Comparisons
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Sources
AIG
- Investor Relations. American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
- Business. AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
- 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.
Berkshire Hathaway Specialty Insurance
- At A Glance. Berkshire Hathaway Specialty Insurance; United States section, zero-based PDF pages 49–53 (viewer pages 50–54): product/industry lists on pages 49–50; U.S. disclosure/version footer on page 53 is 2026-8-03 A. The 2026-09-14 A footer is on preceding European page 48, not the U.S. section. Accessed 2026-09-29.
- About Us. Berkshire Hathaway Specialty Insurance; About BHSI; company profile page re-opened through official site on 2026-09-28; company says it is part of National Indemnity group. Accessed 2026-09-28.
- Terms of Service. Berkshire Hathaway Specialty Insurance; Important Information Concerning Use of this Web Site, paragraphs 2–4; nonbinding submissions, contracted-agent authority, state variation, product availability and policy-specific terms. Accessed 2026-09-28.
- Public Disclosure — Berkshire Hathaway Specialty Insurance Singapore Branch. Berkshire Hathaway Specialty Insurance; Singapore branch public disclosure, Company Profile ¶¶ 1–2; direct page opened 2026-09-28. ¶ 1 identifies BHSIC as a Nebraska-domiciled direct P&C insurer; ¶ 2 states BHSIC is wholly owned by National Indemnity Company, itself wholly owned by Berkshire Hathaway Incorporated. Accessed 2026-09-28.
- Builder’s Risk. Berkshire Hathaway Specialty Insurance; Retained canonical source record locator: current U.S. product page, lines 6–35: all-risk project coverage, hot testing/commissioning, delay/startup/soft costs, single-peril/DIC primary/excess, EAR/CAR target categories and selectively considered Master Builder’s Risk. Prior actual access 2026-09-28; direct re-open failed in this session. Accessed 2026-09-28.
- Builder’s Risk Appetite Guide. Berkshire Hathaway Specialty Insurance; U.S. guide pp. 1–2: marketed coverage/participation and targeted classes, lines 0–35; listed BHSI, follow-form and broker-manuscript policy forms, plus example submission information, lines 39–53; dated 2026-01-30 A; all coverage remains subject to the actual policy, lines 63–65. Accessed 2026-09-30.
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.
