My floor has gaps – Why is this and can you repair them?

A: Seasonal changes that affect humidity causes wood floors to expand and contract, thus causing gaps in the floor. In the winter when it’s cold, especially here in the Midwest, we need the heat in our homes to keep us warm but this causes the humidity to diminish and causes the wood to shrink in size a bit. We can repair the gaps in your floors by filling the gaps with trowel filler.