I'm trying to find the name of a Columbo episode or who starred in it. The scene I remember is when he and some other cops are in a huge mansion investigating a death and Columbo is dropping his cigar ashes everywhere and the old lady who takes care of the house becomes angry and starts calling him a slob. Does that sound familiar to anyone ?

I think it's Double Shock from Season 2 Ep 8. He's fairly careless with his cigar.

Yep,that was it. Thanks
I found it on youtube at the 15:00 mark.
Funny scene

Was that Mrs Peck. Janette Nolan played the part.

Yes he's a slob. A total rude pig. She should have kicked him. At least reported his behavior to his superiors.