EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-75612 of Berkshire Hathaway Inc. on Form S-8 of our report dated June 24, 2022, relating to the financial statements and supplemental schedules of the Johns Manville Employees 401(k) Plan appearing in this Annual Report on Form 11-K of Johns Manville Employees 401(k) Plan for the year ended December 31, 2021.

/s/ Deloitte & Touche LLP

Denver, Colorado

June 24, 2022