  The {\tt SANC} computer system is aimed at support of analytic and numeric
calculations for experiments at colliders. The system is reviewed briefly.
Recent results on high-precision description of the Drell-Yan processes at the
LHC are presented. Special attention is paid to the evaluation of higher order
final-state QED corrections to the single $W$ and $Z$ boson production
processes. A new Monte Carlo integrator {\tt mcsanc} suited for description of
a series of high-energy physics processes at the one-loop precision level is
presented.
