Exhibit

We hereby consent to the incorporation by reference in the Registration Statement on Forms S-3 (Registration Nos. 333-88358 and 333-128438) and Forms S-8 (Registration Nos. 333-106977, 333-115175, 333-143129, 333-156492, 333-171453 and 333-174153) of West Pharmaceutical Services, Inc. of our reportdated February 26, 2016 relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10‑K.