EXHIBIT 23.4 Board of Directors Cascade Financial Corporation 2828 Colby Avenue Everett, WA 98201 March 31, 2004 We hereby consent to the reference to our firm in the proxy statement/prospectus related to the proposed merger transaction involving Issaquah Bancshares, Inc. and Cascade Financial Corporation, and to the inclusion of our opinion letter as Appendix C to the proxy statement/prospectus. Very truly yours, COLUMBIA FINANCIAL ADVISORS, INC. By: /s/ Robert J. Rogowski ---------------------------- Robert J. Rogowski