Serving the Coast, Marin, Napa and Sonoma Counties & the Bay Area for over 20 years! Call us today! If you're looking for the most value for your design dollar, look no further than Cathy Beck Designs. Since 1990, Cathy and her staff have served the window treatment and custom fabric design needs of the Bay area, Sonoma coast, and Marin, Napa, and Sonoma