I totally know what you're going through. Mine was mother nature this summer, JLM came over and saw the after damage. My insurance only paid out 5,000 which was very little considering our finished basement was reduced to cinderblock and cement slab.
Luckily, didn't lose any equipment and maybe a handful of records.
We have a sump system and after this midwinter thaw, the sound of it pumping is music to my ears.
Best of luck!
Paul