“Well-engineered and nicely crafted” are just some of the plaudits Cohen Hacker gives the Pella Architect Series windows (shown in one of the firm's houses). “The windows have the best-looking sticking and beading in the industry,” adds Cohen. Products have mortise-and-tenon construction, exterior-grade glue, and metal fasteners. Pella Windows & Doors, 641.621.1000; www.pella.com.

Julie Hacker and Stuart Cohen stuart cohen & julie hacker architects

evanston, ill.