The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.