Exhibit 31.1

                                 CERTIFICATION

     I, Morry F. Rubin,  Chief Executive  Officer and Chief Financial Officer of
the Registrant, certify that:

     1. I have  reviewed  this  quarterly  report  on Form  10-QSB  of  National
Diversified Services, Inc.;

     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 registrant as
of, and for, the periods presented in this report;

     4. The registrant's other certifying officer (if any) 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 registrant and have:

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

     b) Evaluated the effectiveness of the registrant'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 registrant's internal control
over  financial  reporting  that occurred  during the  registrant's  most recent
fiscal  quarter  that  has  materially  affected,  or is  reasonably  likely  to
materially affect, the registrant's  internal control over financial  reporting;
and

     5. The registrant's other certifying officer and I have disclosed, based on
our most recent evaluation of internal control over financial reporting,  to the
registrant's  auditors  and the audit  committee  of the  registrant'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  registrant'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 registrant's  internal control over
financial reporting.

Date:  May 16, 2005                                  /s/ Morry F. Rubin
                                                     ------------------
                                                     Morry F. Rubin,
                                                     Chief Executive Officer and
                                                     Chief Financial Officer