Finding Home Repair Help for Low Income Families?

I am in desperate need for both my bathtubs and flooring to be replaced. The tubs are not useable. My son and I haven't had a shower in a year. We take sink baths. I applied to HUD, but was turned down because of my credit. I was applying for a grant not a loan. Also, I've had to close off my front porch because it's unsafe.

We are both on disability, so there is no way we could begin to pay for this.
My son and I sure would be so grateful for help getting these repairs fixed. A shower would be so nice!

Thank you.