We recently bought a new home from a builder and we upgraded to hardwood floors in the living room. After the installation, we had our own home inspector come in and look at the house. Along with a few other problems, he found hollow voids all over the hardwood floors and suggested we get those redone. I immediately told the super handling my house and he allowed the floor installers to come back in and inject, despite us telling them not to. Even after multiple injections, we found more hollow spots and after examining closely, we found what look like to be black marker cover-ups. We're not construction savvy and this is our very first home and they are telling us that they can just inject and fix it. We have been fighting this and we did not sign off on the walkthrough and have scheduled closing at a later date. We are already passed our proposed closing date on our contract. The super on the job wants to bring in a Mohawk rep to verify installation, but we are not satisfied with the install. We don't want holes in our floors and these marks on a brand new floor install where we spent the most money on. These floors were expensive. We just don't know what to do. We don't want to jeaopardize the deal because we love the house, but this just seems unfair. What should we do?

IMO, it is within industry standards to have a few spots that need to be injected to remove the voids underneath the floor. I'm with you in that I do not like the little holes they leave, even if they can be filled. But it is within industry standards.

That being said, it sounds as if there are more than a few. That would mean there is some installation issue going on. Wrong size trowel, wrong adhesive, improper slap prep, uneven slab out of spec, failure to roll the floor if required, contaminated slab, etc. The list goes on. I think you should hold your ground and refuse to accept the floor. You could consider getting an attorney to write a strong letter. Were you represented with a buyer's agent? If so, tell that agent to put your demands in writing as well. The builder will cave in eventually, because he'll just blame the flooring subcontractor. No reason you should have to accept a poorly installed floor.