Quick Update. I called Jack Dish Plumbing again for a new house that I purchased and, as expected, got great service! I can now add that not only is their work exemplary, but when I asked about replacing expensive items (toilets, water heaters, etc.) I got honesty and was told it wasn't necessary! Wow! How great!
The water softener was in a terrible state and David advised me what to try to get it working again. He took my calls after he left when I had questions about it and thanks to his excellent advice - it's now working again!
And the bill was reasonable!
I cannot recommend this company more highly!!!