Ordained as a city's rabbi, ("Rav-Ir"), Rabbi Horowitz has served as Rabbai of Tzahala and Yisgav neighborhoods in northern Tel Aviv. In addition, Rabbi Horowitz is also the head of the Nero-Yair Kolel in Bnei Brak.
Rabbi Horowitz regularly lectures in organizations such as Arachim, Lev le-Achim, Hidabrut etc, gives Parashat HaShavua lessons, and provides counseling and mediation in education, relationships and Shlom-Bait. His lessons and counseling are also broadcasted on the Radio Kol-Chai station and he has a standing Judaism program on channel 2. Rabbi Horowitz was the principal of the Ort High School for troubled youth, and continues to be involved in helping youth to this day. As a Rabbi, lecturer and educator, he had discovered the great power of a smile to break down walls and warm up cold hearts, and it has been a staple of his work wherever he goes, striving to bring Israel closer to their Father in Heaven and "Turn the hearts of the fathers to their children and the hearts of the children to their fathers".
Bringing all parts of the people of Israel closer together is an inseparable part of who he is and what he does.