An apparatus for lifting and supporting a pile is provided. The apparatus includes a modular support structure, which may include a modular support element such as a modular support helical pile. The modular support structure may further include a modular guide sleeve for guiding the support element as it is driven into strata. The portions of the modular support element and the modular guide sleeve may be installed adjacent a pile supporting a building even in the confined vertical space between the bottom of the building and the surface of the ground. Lifting device elements may be attached to the modular support structure and engaged with the building pile to lift and support the building pile.