England trio Chris Ashton, Mako Vunipola and Owen Farrell ran in tries to seal a 23-14 victory against Bath on Saturday to ensure Sarries of home advantage this weekend against Northampton.
Saints finished fourth after losing 19-22 at third-placed Harlequins, who themselves now travel to league runners-up Leicester in the first semi-final on Saturday.
And McCall is delighted his team will continue their quest for a second championship in three seasons having won seven of their last eight league matches.
“Four years ago the one thing we craved more than anything was consistency,” he said.
“Saracens had been so inconsistent as a club through the professional era. This will be our fourth consecutive semi-final and the first time that we have been top of the table at the end of the regular season in Saracens’ history.”
The Aviva Premiership Rugby final has sold out for the last five years. To snap up tickets go to ticketmaster.co.uk or call 0844 844 0444.