[GRAPHIC OMITTED] WILLOW GROVE BANCORP, INC. ANNOUNCES A STRATEGIC COMBINATION WITH [GRAPHIC OMITTED] CHESTER VALLEY BANCORP INC. JANUARY 21, 2005 DISCLAIMER ================================================================================ FORWARD LOOKING STATEMENTS. A number of the matters discussed in this message that are not historical or current facts deal with potential future circumstances and developments, in particular, information regarding the new company, including expected synergies resulting from the merger of Chester Valley Bancorp and Willow Grove Bancorp, combined operating and financial data, future banking plans, and whether and when the transactions contemplated by the merger agreement will be consummated. The discussion of such matters is qualified by the inherent risk and uncertainties surrounding future expectations generally, and also may materially differ from actual future experience involving any one or more of such matters. Such risks and uncertainties include: the failure to realize capital, operating expense and other synergies; the result of the review of the proposed merger by various regulatory agencies, and any conditions imposed on the new company in connection with consummation of the merger; approval of the merger by the shareholders of Chester Valley Bancorp and Willow Grove Bancorp and satisfaction of various other conditions to the closing of the merger contemplated by the merger agreement; and the risks that are described from time to time in Chester Valley Bancorp's and Willow Grove Bancorp's respective reports filed with the SEC, including each company's annual report on Form 10-K for the year ended June 30, 2004 and quarterly report on Form 10-Q for the quarter ended September 30, 2004. This message speaks only as of its date, and Chester Valley Bancorp and Willow Grove Bancorp each disclaims any duty to update the information herein. ADDITIONAL INFORMATION AND WHERE TO FIND IT. In connection with the proposed merger, a registration statement on Form S-4 will be filed with the SEC. CHESTER VALLEY BANCORP AND WILLOW GROVE BANCORP SHAREHOLDERS ARE ENCOURAGED TO READ THE REGISTRATION STATEMENT AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, INCLUDING THE JOINT PROXY STATEMENT/PROSPECTUS THAT WILL BE PART OF THE REGISTRATION STATEMENT, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE MERGER. The final joint proxy statement/prospectus will be mailed to shareholders of Chester Valley Bancorp and Willow Grove Bancorp. Shareholders will be able to obtain the documents free of charge at the SEC's website, www.sec.gov, from Chester Valley Bancorp by calling Joseph T. Crowley, or from Willow Grove Bancorp by calling Christopher E. Bell. PARTICIPANTS IN SOLICITATION. Chester Valley Bancorp, Willow Grove Bancorp and their respective directors and executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies in respect of the merger. Information concerning persons who may be considered participant's in the solicitation of Chester Valley Bancorp's shareholders is set forth in the proxy statement dated September 10, 2004, for Chester Valley Bancorp's 2004 annual meeting of shareholders as filed with the SEC on Schedule 14A. Information concerning persons who may be considered participant's in the solicitation of Willow Grove Bancorp's shareholders is set forth in the proxy statement dated October 8, 2004, for Willow Grove Bancorp's 2004 annual meeting of shareholders as filed with the SEC on Schedule 14A. Additional information regarding the interests of participants of Chester Valley Bancorp and Willow Grove Bancorp in the solicitation of proxies in respect of the merger will be included in the registration statement and joint proxy statement/prospectus to be filed with the SEC. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -2- [GRAPHIC OMITTED] INTRODUCTION ================================================================================ [GRAPHIC OMITTED] -3- TRANSACTION OVERVIEW ================================================================================ o Willow Grove Bancorp, Inc.'s. ("Willow Grove") and Chester Valley Bancorp, Inc.'s ("Chester Valley") Boards of Directors have signed a definitive agreement pursuant to which Willow Grove will acquire Chester Valley in a strategic combination o Chester Valley is the parent company of First Financial Bank, the second largest commercial bank headquartered in Chester County with 13 branches o Following the consummation of the transaction, Donna M. Coughey will become the new CEO of the combined entity, taking the place of retiring Willow Grove CEO, Frederick A. Marcell Jr. o For three years, each bank is expected to operate as separate divisions of the combined bank o The combination will dramatically increase the combined company's presence in the southeastern Pennsylvania market, with combined assets totaling over $1.5 billion [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -4- TRANSACTION HIGHLIGHTS ================================================================================ STRONG STRATEGIC FIT Strong positions in southeastern PA's most attractive markets Unique crescent-shaped footprint surrounding Philadelphia Added senior management with commercial banking expertise Opportunity to expand trust, asset management and cash management services COMPLEMENTARY BUSINESSES Similar customer-focused, community banking operating models Product diversification, enhanced lending capabilities and improved A/L management flexibility Balance sheet diversification Enhanced demographic profile ATTRACTIVE FINANCIAL IMPLICATIONS ccretive to GAAP and cash EPS within the first year of combined operations Achievable and identified expected cost efficiencies Effective use of Willow Grove's excess capital LOW EXECUTION RISK Shared community banking philosophy Familiarity of senior management teams [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -5- SUMMARY OF SIGNIFICANT TERMS ================================================================================ IMPLIED PRICE PER SHARE(1): $27.90 TRANSACTION STRUCTURE: 1.482 shares of Willow Grove stock or $27.90 in cash for each Chester Valley share, subject to approximately 35.2% of all Chester Valley shares to be exchanged for cash IMPLIED CONSIDERATION MIX(1): Approximately 65% stock / 35% cash AGGREGATE PURCHASE PRICE(2): $152.5 million BOARD REPRESENTATION: - 10 Willow Grove / 7 Chester Valley - Chairman of the Board and Chairman Designee to come from Willow Grove DOUBLE TRIGGER WALK-AWAY(3): 25% absolute / 15% versus NASDAQ Bank index TERMINATION FEE: $6.0 million ANTICIPATED CLOSING: Third calendar quarter 2005 DUE DILIGENCE: Completed (1) Price per share for Chester Valley based on Willow Grove's stock price of $18.82 as of 1/19/05. (2) Based on approximately 5.1 million of Chester Valley shares outstanding, and approximately 0.688 million of outstanding options, using the treasury stock method of accounting. (3) Based on Willow Grove's stock price of $19.45 and the NASDAQ Bank index of 3,223.9 all as of December 3, 2004. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -6- DEAL PRICING ================================================================================ PA BANK TRANSACTIONS(1) ----------------------- CHESTER VALLEY Median Mean ------------------------------------------------- PREMIUM TO TRADING MARKET: -------------------------- 1-Day Premium 28.2% 36.6% 38.3% PRICE AS A MULTIPLE TO: ----------------------- LTM EPS: 23.4x 23.5x 25.0x Book: 2.8x 2.6x 2.6x Tangible Book: 2.9x 2.9x 3.0x Source: SNL Financial and company filings. (1) Based on 13 bank transactions announced in Pennsylvania since June 1, 2001 and valued between $50 and $450 million. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -7- [GRAPHIC OMITTED] STRATEGIC BENEFITS ================================================================================ [GRAPHIC OMITTED] -8- WILLOW GROVE BUSINESS OVERVIEW ================================================================================ [GRAPHIC OMITTED] WILLOW GROVE BANK FEDERALLY CHARTERED THRIFT TOTAL ASSETS: $975.6mm 14 full-service branch offices NET LOANS: $537.7mm Primarily real estate lending TOTAL DEPOSITS: $592.8mm Primarily serving Montgomery, NET INTEREST MARGIN: 3.29% Bucks and Philadelphia counties RETURN ON AVG. EQUITY: 6.74% RETURN ON AVG. ASSETS: 0.77% 3-YEAR LOAN CAGR(1): 10.18% 3-YEAR CORE DEPOSIT CAGR: 22.58% HEADQUARTERS: Maple Glen, PA All financial data as of 9/30/04, except CAGR which is based on FY 2001-2004. (1) Excludes single-family real estate loans. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -9- CHESTER VALLEY BUSINESS OVERVIEW ================================================================================ [GRAPHIC OMITTED] PHILADELPHIA CORP. FIRST FINANCIAL BANK FOR INVESTMENT SERVICES PA CHARTERED COMMERCIAL BANK Asset management 13 full-service branch offices Securities brokerage Real estate, commercial and Broker / Dealer and consumer lending investment adviser Strong deposit mix Serving Chester County TOTAL ASSETS: $644.7mm NET LOANS: $400.1mm TOTAL DEPOSITS: $429.0mm NET INTEREST MARGIN: 3.47% RETURN ON AVG. EQUITY: 11.49% RETURN ON AVG. ASSETS: 0.94% 3-YEAR LOAN CAGR (1): 17.72% 3-YEAR CORE DEPOSIT CAGR: 23.64% HEADQUARTERS: Downingtown, PA SUCCESSFUL TRANSITION TO COMMERCIAL BANK All financial data as of 9/30/04, except CAGR which is based on FY 2001-2004. (1) Excludes single-family real estate loans. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -10- THE COMBINED FRANCHISE ================================================================================ A $1.5 BILLION COMPANY WITH 27 EXISTING BRANCH OFFICES IN MONTGOMERY, CHESTER, BUCKS AND PHILADELPHIA COUNTIES [MAP GRAPHIC OMITTED] [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -11- STRENGTHENED MARKET PROFILE ================================================================================ A COMBINED BRANCH NETWORK LOCATED AMONG THE MOST AFFLUENT AND SOME OF THE FASTEST GROWING COUNTIES IN SOUTHEASTERN PENNSYLVANIA Projected Projected Population Median HH Income Estimated Change HH Income Change Market Southeastern PA 2004-2009 2004 2004-2009 Share(1) ---------------------------------------------------------------------------------- MOST AFFLUENT COUNTIES ---------------------- [ARROW GRAPHIC OMITTED] CHESTER 7.81% $73,162 14.46% 5.81% [ARROW GRAPHIC OMITTED] MONTGOMERY 4.55 67,277 10.80 2.62% [ARROW GRAPHIC OMITTED] BUCKS 4.58 66,580 11.83 0.92% Delaware 1.10 54,909 10.34 -- FASTEST GROWING COUNTIES ------------------------ [ARROW GRAPHIC OMITTED] CHESTER 7.81% $73,162 14.46% 5.81% Berks 4.87 48,434 9.92 -- [ARROW GRAPHIC OMITTED] BUCKS 4.58 66,580 11.83 0.92% [ARROW GRAPHIC OMITTED] MONTGOMERY 4.55 67,277 10.80 2.62% Source: SNL Financial, except market share data. (1) Market share data based on FDIC estimated deposits in each county. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -12- ENHANCED DEPOSIT PORTFOLIO ================================================================================ CORE DEPOSITS FOR THE COMBINED ENTITY WILL AMOUNT TO 63% OF TOTAL DEPOSITS ($ in thousands) WILLOW GROVE CHESTER VALLEY PRO FORMA ------------ -------------- --------- 9/30/04 MIX 9/30/04 9/30/04 MIX ------------------------------------------------------------ DDA $128,288 21.6% $133,915 $262,203 25.7% Savings 87,307 14.7% 32,745 120,052 11.7% MMDA 107,762 18.2% 148,989 256,751 25.1% CDs 269,468 45.5% 113,400 382,868 37.5% -------- ----- -------- ---------- ----- Total $592,825 100.0% $429,049 $1,021,874 100.0% [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -13- LOAN PORTFOLIO DIVERSIFICATION ================================================================================ THE COMBINED ENTITY WILL HAVE A MORE DIVERSIFIED LOAN PORTFOLIO WITH AN EMPHASIS ON COMMERCIAL LOANS ($ in thousands) WILLOW GROVE CHESTER VALLEY(1) PRO FORMA ------------ ---------------- --------- 9/30/04 MIX 9/30/04 9/30/04 MIX ----------------------------------------------------------- Commerical Real Estate $190,812 35.0% $57,062 $247,874 25.3% Construction 65,400 12.0% 52,078 117,478 12.0% Commercial & Industrial 15,476 2.8% 139,312 154,788 15.8% Home Equity & Consumer 96,478 17.7% 116,116 212,594 21.7% Residential Real Estate 176,113 32.4% 69,658 245,771 25.1% -------- ----- -------- ---------- ----- Total $544,279 100.0% $434,226 $978,505 100.0% (1) Chester Valley's portfolio is adjusted for the split in loans made between Commercial & Industrial Owner-occupied Real Estate and Commercial Real Estate. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -14- SUMMARY BALANCE SHEET IMPACT ================================================================================ ($ in thousands) WILLOW GROVE CHESTER VALLEY PRO FORMA (1) 9/30/04 9/30/04 9/30/04 --------------------------------------------------- Assets $975,585 $644,693 $1,620,278 Investment Securities (2) 385,297 190,524 575,821 Net Loans 537,675 400,129 937,804 Deposits 592,825 429,049 1,021,874 Borrowings (3) 270,182 158,814 428,996 (1) Pro Forma excludes all purchase accounting adjustments and may include assets that may be liquidated to retire borrowings or to fund the cash consideration and upfront costs associated with this transaction. (2) Excludes interest earning cash. (3) Includes trust preferred securities. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -15- [GRAPHIC OMITTED] FINANCIAL HIGHLIGHTS ================================================================================ [GRAPHIC OMITTED] -16- FINANCIAL HIGHLIGHTS ================================================================================ THE TRANSACTION IS EXPECTED TO BE ACCRETIVE TO EARNINGS ON A GAAP AND A CASH BASIS WITHIN THE FIRST FULL YEAR OF COMBINED OPERATIONS For the first full year of combined operations management expects to attain approximately $2.2 million of net pre-tax cost savings(1) Management estimates a core deposit intangible of approximately $10.7 million, or 2.5% of total deposits to be amortized on an accelerated basis over a 12-year period Mark-to-market pre-tax earnings impact as a result of purchase accounting adjustments estimated to be $650 thousand in the first full year of combined operations One-time merger charges are expected to be approximately $6.0 million on a pre-tax basis, which include charges for transaction costs, change of control costs, data processing and conversion costs and various other employee related costs (1) Does not include any potential transaction related one-time merger charges / expenses. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -17- PRO FORMA FY 9/30/04 LTM EARNINGS ================================================================================ ($ in millions, except per share data) PRO FORMA LTM 9/30/04 --------------------- AMOUNT PER SHARE ------ --------- WILLOW GROVE STANDALONE NET INCOME $6.29 $0.65 CHESTER VALLEY STANDALONE NET INCOME 6.32 1.19 POST TAX ADJUSTMENTS(1): ------------------------ PLUS: COST EFFICIENCIES $1.46 $0.10 MINUS: OPPORTUNITY COST OF CAPITAL(2) (2.71) (0.18) MINUS: CDI AMORTIZATION (1.08) (0.07) ------ ----- PRO FORMA COMBINED, POST ADJUSTMENTS $10.28 $0.69 ESTIMATED GAAP EPS ACCRETION BEFORE MARK-TO-MARK. ADJS. 6.2% ESTIMATED GAAP EPS ACCRETION(3) 12.3% ESTIMATED CASH EPS ACCRETION 16.9% (1) Assumes a tax rate of 34%. (2) Assumes (i) the capital used to fund the transaction would have yielded 4.25% and (ii) borrowings paid down in connection with the transaction would have been invested in assets that would have earned a 125bps spread. (3) Includes mark-to-market adjustments of $0.65 million or $0.04 per share. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -18- ACHIEVABLE COST SYNERGIES ================================================================================ EXPECTED $2.2 MILLION OF COMBINED PRE-TAX COST SAVINGS OR APPROXIMATELY 5.5% OF THE COMBINED COMPANY'S LAST TWELVE MONTHS 9/30/04 OPERATING EXPENSE(1) Personnel Expense, Net $1.2 Data Processing 0.4 Other, Net 0.6 ------ TOTAL PRE-TAX COST SAVINGS $2.2 (1) Cost savings are for the first twelve months of combined operations. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -19- CAPITAL RATIOS ================================================================================ THE COMBINED COMPANY'S BALANCE SHEET WILL REMAIN WELL CAPITALIZED PRO FORMA 9/30/04 (1) ----------- Equity / Assets 12.83% Tangible Equity / Tangible Assets 7.44% (1) Ratios assume the sale of $140 million of investment securities and repayment of approximately $140 million in FHLB borrowings with the balance of cash used to fund the transaction. [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -20- SIGNIFICANT GROWTH OPPORTUNITIES ================================================================================ EPS AND CASH EPS FOR THE FIRST TWELVE MONTHS OF COMBINED OPERATIONS ARE EXPECTED TO BE IN THE RANGE OF $0.95 TO $1.00 AND $1.07 TO $1.12, RESPECTFULLY No revenue enhancements assumed However, there are several potential long-term growth opportunities: Strong demographic profile of combined communities allows for more meaningful deposit growth Higher legal lending limit with local lending decisions Availability of additional lending products Alignment of investment portfolio strategies Cross-selling opportunities between combined branch network with Chester Valley's Asset Management Division [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -21- TRANSFORMATIONAL TRANSACTION ================================================================================ ACCRETIVE TO GAAP EARNINGS WITHIN THE FIRST YEAR OF COMBINED OPERATIONS COMPLEMENTARY BUSINESS MODELS STRONG FOUNDATION FOR GROWTH IN SOUTHEASTERN PA'S MOST ATTRACTIVE MARKETS ADDED SENIOR MANAGEMENT DEPTH AND EXPERTISE ENHANCED PRO FORMA DEPOSIT BASE AND MIX INCREASED LENDING CAPABILITIES BALANCE SHEET DIVERSIFICATION INCREASED A/L MANAGEMENT FLEXIBILITY LIMITED EXECUTION RISK [GRAPHIC OMITTED]==============================================[GRAPHIC OMITTED] -22-