No, when done correctly, removing the tile shouldn’t damage the subfloor. However, if there was pre-existing damage to the subfloor from standard use or lack of maintenance, the subfloor may need repairs. For example, if the contractors notice mold growth on the subfloor or an uneven surface, you may need more extensive services before installing new tile.

If you DIY tile removal, remove the tiles one step at a time, individually removing the tile, grout, and mortar to prevent unnecessarily damaging the subfloor. Depending on the age of your home, consider having a professional inspect the subfloor to ensure it’s in good enough condition to lay new tile.

The cost to put wooden flooring in an attic can run a wide range. Carpeting can cost as little as $1 per square foot, or even less if you opt for unfinished flooring types like rubber or painted plywood. On the high end, hardwood floors might cost as much as $45 dollars per square foot. For a previously unused space, you’ll probably need to add a subfloor which usually costs about $5 per square foot.

A laminate floor will lift if it hasn’t been installed with the proper expansion gaps around the room’s perimeter. Laminate flooring naturally expands and contracts when indoor temperatures fluctuate, and without adequate room for expansion, the planks can lift off the subfloor. To avoid this, ensure your flooring installer knows to leave the proper expansion gaps.

Sometimes, professional floor cleaning isn't enough to remove all the set-in grime and odors that have accumulated over the years. In other instances, your flooring might be nearing the end of its lifespan after more than a decade. If that's the case, it might be time to replace your flooring and start fresh. 

The cost to install flooring ranges from $1,500 to $4,460 for a 500-square-foot room. The overall price you pay depends on the size of your room and the flooring type you choose.