A frameless glass sliding shower door makes a cramped bathroom feel twice as big and cuts out the mildew trap of fabric curtains. The installation itself only takes a few hours once the materials arrive. End-of-quarter bathroom retail clearances are the cheapest time to buy the hardware, and booking your contractor during these slower months helps you dodge peak summer labor rates.
Before you commit to a price, get at least three quotes from local glass installers. Labor costs vary wildly for heavy glass work, and you need to make sure your walls can actually support the weight of a frameless slider without sagging.
That intro window is a strict deadline rather than free money. If you still carry a balance when the 18 months are up, regular interest kicks in on the whole original amount.