"hey were just going to inject glue in a few spots and put wood filler in all of the holes and gaps (that would fix maybe 15% of what was wrong)"
Be careful about this. My installer injected glue in one spot of my floor and a "hump" developed. Here's a youtube video of the results of the glue injection.
http://youtu.be/_k3Y6i9ctnA
Be careful about this. My installer injected glue in one spot of my floor and a "hump" developed. Here's a youtube video of the results of the glue injection.
http://youtu.be/_k3Y6i9ctnA