Architects and builders have long appreciated aluminum windows and  replacement aluminum windows for their overall strength, lasting value  and configurability to maximize great views like the San Francisco Bay. Milgard takes aluminum windows a step further than most manufacturers by  treating them not as just a low-cost alternative, but as an  architectural design element. As a result, our unique aluminum windows  are found in projects ranging from entry-level homes and multifamily  projects to high-end custom homes and light commercial applications in  San Francisco.