Exhibit 31.2
                                  CERTIFICATION
                                  -------------

I, Michael W. Shelton, certify that:

1.   I have  reviewed  this  quarterly  report  on Form  10-Q  of FNB  Financial
     Services Corporation;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material  fact or omit to state a  material  fact  necessary  to make the
     statements made, in light of the circumstances  under which such statements
     were made,  not  misleading  with  respect  to the  period  covered by this
     report;

3.   Based on my  knowledge,  the  financial  statements,  and  other  financial
     information  included  in  this  report,  fairly  present  in all  material
     respects the financial  condition,  results of operations and cash flows of
     the small  business  issuer as of, and for,  the periods  presented in this
     report;

4.   The  small  business  issuer's  other  certifying   officer(s)  and  I  are
     responsible  for  establishing  and  maintaining  disclosure  controls  and
     procedures  (as defined in Exchange Act Rules  13a-15(e) and 15d-15(e)) for
     the small business issuer and have:


          (a) Designed such disclosure  controls and procedures,  or caused such
          disclosure   controls  and   procedures  to  be  designed   under  our
          supervision, to ensure that material information relating to the small
          business  issuer,  including its  consolidated  subsidiaries,  is made
          known to us by others within those entities,  particularly  during the
          period in which this report is being prepared;


          (b)  Evaluated  the  effectiveness  of  the  small  business  issuer's
          disclosure  controls and  procedures  and presented in this report our
          conclusions  about the  effectiveness  of the disclosure  controls and
          procedures,  as of the end of the period  covered by this report based
          on such evaluation; and


          (c) Disclosed in this report any change in the small business issuer's
          internal  control over financial  reporting  that occurred  during the
          small business issuer's most recent fiscal quarter (the small business
          issuer's  fourth fiscal  quarter in the case of an annual report) that
          has materially affected, or is reasonably likely to materially affect,
          the small business issuer's internal control over financial reporting;
          and

5.   The  small  business  issuer's  other  certifying  officer(s)  and  I  have
     disclosed,  based on our most recent  evaluation  of internal  control over
     financial reporting,  to the small business issuer's auditors and the audit
     committee of the small  business  issuer's  board of directors  (or persons
     performing the equivalent functions):


          (a) All significant deficiencies and material weaknesses in the design
          or operation of internal  control over financial  reporting  which are
          reasonably  likely to  adversely  affect the small  business  issuer's
          ability   to  record,   process,   summarize   and  report   financial
          information; and


          (b) Any fraud,  whether or not material,  that involves  management or
          other  employees  who have a  significant  role in the small  business
          issuer's internal control over financial reporting.


November 10, 2003


                                                     /s/ Michael W. Shelton
                                                     ---------------------------
                                                     Michael W. Shelton,
                                                     Chief Financial Officer

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