Monolithic construction in winter faces problems of developing concrete strength at the negative ambient temperature. In order to provide the required temperature conditions for concrete curing and hardening builders use different methods to warm structures. One way is to use heating wire. The relevance of the paper is due to the climatic conditions of construction in most parts of Russia and the lack of a uniform methodology for calculating the required output of warm by heating wire. The paper discusses various guidelines for thermal curing of concrete. Modeling of warming up concrete in monolithic construction by heating wire has been done in ELCUT and WinConcret. A set of concrete strength has been calculated and temperature fields in the overlapping section have been analyzed. The problem of thermal deformation of concrete was solved.