It’s not the Holy Spirit that beckons Pasadena-based artist Scotlan Goldbeck into the occasional church—it’s the stained glass. A longtime admirer of the art form, she remembers first falling in love with a pigmented portal in Pequot Lakes, Minnesota, and still moseys into a chapel from time to time to savor the color-drenched glow. So when she enlisted Los Angeles architecture and design firm LAUN to renovate her 1906 Craftsman, Goldbeck brought her fascination home by adding a living room window festooned with amorphous blobs of blues, greens, and oranges. “There’s something spiritual about the different ways light shines through it,” Goldbeck says of the stained-glass window Debbie Bean crafted for the space. “It feels simultaneously ancient and present.”

Stained glass is no longer just a staple of churches and temples, but increasingly popular among homeowners and designers working on residential projects.…