Contact Us Hagler Construction 1825 Summit Avenue Suite 210 Plano, Texas 75074 Phone:  214-342-8781 Fax: 214-343-9839 Directions to Our Office: From Hwy 75, Central Expressway, take the Plano Parkway Exit to the east. Follow Plano Parkway east to Jupiter Road. Turn left onto Jupiter and go north one block to Summit Ave. Turn left on to Summit Ave. Go west approximately one block and enter the parking lot at 1825 on the north side of the street. Our office is in a one story office/warehouse complex. Our suite number 210 is clearly marked.