We have just had a new engineered hardwood floor put down after the previous engineered floor had water damage. The installers did not level or properly clean the floor this second time and this resulted in many areas of air pockets where the floor did not adhere. They want to patch by drilling holes and filling with glue. I have read many areas on the internet that say this is not the way to go. Should we have them take up the floor again and start fresh? These same installers did not use a level for the kitchen tile floor resulting in some corners being higher than others and air pockets as well. What to do here?