Stepping out of bed onto a solid, waterproof floor that finally matches across the whole main level changes how the house feels every single day. A standard flooring crew usually knocks out the tear-out and install in about three to four days once they start. Shopping the end-of-year clearance sales at local flooring warehouses is your best bet for catching the lowest prices on material before the spring rush hits.
Before you commit to anyone, get at least three written quotes from different local contractors to keep the labor costs honest. Make sure each quote breaks down the exact cost for subfloor prep, baseboards, and hauling away the old material so you do not get hit with surprise fees on day two.
That 0% window is a hard deadline, not free money, so treat the monthly payment like any other fixed bill. If you still have a balance left over when the 18 months run out, standard interest charges will kick in on whatever is left.