Byggmester Kristoffer Seland serves Grimstad and Arendal as a building company within the Norgeshus network. Its core work covers detached timber-frame homes and cabins developed from Norgeshus catalogue models or adapted layouts.

The company manages local planning, trade and site coordination, construction and project completion, with access to shared design, engineering and procurement resources. Its wider building services include extensions, renovation and associated timber construction.