The miracle of hydraulic cement

If you ever find water literally pouring into your house as we did (see video), I suggest hydraulic cement. I called Enbridge gas, the genius people who drilled a hole through my foundation below grade without filling the space, (we never had flooding before that) but they would not be able to see me until Tuesday or Wednesday. I tried two other people and nobody called back. So I called my uber-knowledgeable brother-in-law for advice on what to plug the hole with and he suggested hydraulic cement. He suggested to wear two pairs of rubber gloves, not to get it on anything, and to work fast because it sets in a few minutes so just shove it in the hole and don't expect it to look pretty.

We mixed up a small batch because it hardens very quickly. I didn't bother with a trowel and just used my gloved hand to shove the hydraulic cement into the hole with the water pouring through it. The first handful washed away, but the second handful was already starting to harden and perfectly fit in the hole. And it stayed! It stopped the water!! It was a $9 miracle. But then we realized many smaller leaks, which were filled one at a time using my new tool, hydraulic cement.

But where was the water coming from? I went outside to investigate and noticed a crack on my neighbour's sidewalk, not too far from the front of our house and the leak. All the water running between our houses was pooling there and running down this crack. So we mixed up another batch, and in the rain, I shoved some hydraulic cement into this crack and it stayed. The water quit running down the hole and I tried to divert it to the nearby drain. 

We've won the battle but the war is not over. We need to get some drain/foundation specialist in here and do something permanent about this. Recommendations are gratefully accepted.