Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement onForm S-3 of our report dated November 28, 2018, relating to the consolidated financial statements of BrightView Holdings, Inc. appearing in the Annual Report onForm 10-K of BrightView Holdings, Inc. for the year ended September 30, 2018, and to the reference to us under the heading “Experts” in the Prospectus, which is part of this Registration Statement.
/s/ Deloitte & Touche LLP
Philadelphia, Pennsylvania
July 8, 2019