Exhibit 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (Nos. 333-188669, 333-142714, 333-64627, 333-108699, and 333-115968) on Form S-8 and (Nos. 333-85862 and 333-279245) on Form S-3 of our report dated February 18, 2025, with respect to the consolidated financial statements of Watts Water Technologies, Inc. and the effectiveness of internal control over financial reporting.

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/s/ KPMG LLP

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Boston, Massachusetts

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February 18, 2025