Gjerstad Hus og Hyttebygg AS is a Norwegian construction company and Norgeshus dealer serving Risør, Gjerstad and Kragerø. It builds timber-frame homes and cabins using Norgeshus house concepts, with floor plans and specifications adjusted for individual projects.

The regional team handles planning, site coordination, construction execution and completion, supported by network-level design, engineering and procurement systems. The company also carries out additions, renovation and related timber construction work.