William Penns Landing Site is a good beginning but great pergola installation really takes you places. Surfing the web at Thomas B McGabe Library for more information on pergola installation? Feel free to call us with any questions, just make sure to use your inside voice! What does all great pergola installation have in common with Woodlyn Volunteer Fire Company Station 67? A solid foundation and substantial structure. Build a pergola directly to attached to your house for a new beautiful patio area, or have one installed to serve as an elegant addition to your pool space in Folsom, PA.