Find Phone number, Location Address and all other information of Construction Companies in Islamabad John Interior Design & Construction Islamabad on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-51-2870524, or you can visit their location in person, address location is: Suit # 2, 3rd Floor, Ali Plaza, Fazal-e-Haq Road, Blue Area, Islamabad..