What sets us apart from other window replacement companies in St. Louis is our process, prices, exceptional service, and consistently excellent results. If you’ve ever bought windows from any of the “big brands,” you’re probably familiar with their VERY high-pressure salespeople. At Zen Windows, we never use high-pressure, in-your-face tactics. Instead, we take the stress out of getting window quotes by letting you submit your information online or over the phone. Here’s how it works from start to finish…