Home > Projects > Remodeling/Historic Preservation > Q&A: Concealed Splices in Remodels Remodeling/Historic Preservation Q&A: Concealed Splices in Remodels Safe solutions to common wiring quandaries that arise on the job site By Cliff Thomas Login or Register to download the PDF version of this article. (181.75 kB) A. Any splice that is at all suspect should be checked for mechanical integrity and made code-worthy. All splices are required to be in a box (Figure 2). Login or Register to read the full article.