Exhibit 23(a)

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to The Lamson & Sessions Co. Nonqualified Deferred Compensation Plan (Post — 2004) of our reports dated February 15, 2006, with respect to the consolidated financial statements and schedule of The Lamson & Sessions Co. included in its Annual Report (Form 10-K) for the year ended December 31, 2005, The Lamson & Sessions Co. management’s assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of The Lamson & Sessions Co., filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Cleveland, Ohio
November 30, 2006