anarbeiten / to attach, join or work onto
(De Vries, German-englisch Technical and Engineering Dictionary)

join v, 1. verbinden, abbinden, zusammenfügen, aneinanderfügen, anschließen; 2. (Hb) (ein)fügen, einblatten; ineinander passe; stoßen

to butt | butted, butted | stoßen | stieß, gestoßen |
https://dict.leo.org/englisch-deutsch/stoßen

to join | joined, joined | aneinanderfügen | fügte aneinander, aneinandergefügt |
https://dict.leo.org/englisch-deutsch/aneinanderfügen

Kontext/ Beispiele Bodenläufe fachgerecht anarbeiten oder neuen Fensterbänke an die Auflagerfläche anarbeiten
Übersetzung join to (?)
Kommentar Danke für die Antworten. ich denke, joining trifft es ganz gut.
https://dict.leo.org/forum/viewUnsolvedquery.php?idThread=15...

Tile finish will butt to dome edge - tile should finish under dome edge about ¼” minimum, more than ¼” is fine.
Cut tile around ears and butt tile to outside edge of Niche.
https://www.raficreations.com/dome-niche-instructions

Use Hip/Ridge/Rake tile on rake edges to complete a traditional tile aesthetic. This component can also be used to box in the rake and butt tile to the rake edge for a distinct appearance.
https://quarrix.com/Products/Tile-Components

Tile around window. Now I have seen this done 2 ways and others with more experience at doing this can describe better their method of install.
1. Butt tile directly to edge of the glass block - meaning the glass block must be set inside to allow the tile to do this.
https://www.doityourself.com/forum/designing-kitchens-bathro...

Seems to apply to finishing work, or just finishing, or even better incorporate, but the rest of the sentence should include some reference to "onto", as in you are finishing a part or component so that it fits in with the rest of the possibly newly built parts or components.

I think incorporate works especially well given that it involves no adjustments or connections. "ohne Anpassen oder Anschließen."