Find Phone number, Location Address and all other information of Kindergarten, Playgroup & Play Schools in Islamabad Roots School System - RSS (Montessori System) Islamabad on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-51-5788586, 5788587, or you can visit their location in person, address location is: Roots Thematic Montessori to A-Level: 1st Avenue, Sector A, DHA Phase I, Islamabad.