Topic: looking for horror title traumated my childhood

~20 years ago a hard scary low budget B-category horror movie deeply shocked me as a small child. I want to rewatch and face it in order to soften caused mental injuries effecting me till today.

Please help me find the movie title.

I have seen only the end part of it, what I remember that the villain was probably livingly walled up in a building (not sure) and many years later he made revenge on his killers especially on a woman who was pulled into the concrete wall livingly with the villain at the end and the wall closed up.
The scaries moment for me at the end was that the villain killed somebody, the woman was laying before the dead and continously called his name when suddenly the face of the dead man had become a frightening green monster and started speaking to her, aaAAAAA!!!!!

Re: looking for horror title traumated my childhood

Could it be Crawlspace (1986)?

Re: looking for horror title traumated my childhood

Crawlspace: I will check it

What I still remember it wasn't a mere house but rather a bulding maybe a skyscraper. There was a scary scene when the unvisible villain moved cook-wares in a huge canteen kitchen to scare somebody (and kill).