Sierra Windows and Doors replaced and installed all the windows at our Lake Tahoe house several years ago.  They also provided window coverings more recently.  The quality of their products, their attention to detail, prompt service, craftsmanship, willingness to stand by and guarantee their products has been excellent.

Richard & Marsha Niemann, Napa, California

We appreciated the promptness and the quality of service we received. The owner, Mark Lyon, is a great salesperson, friendly and knowledgeable. We were very happy with all the windows and doors we purchased from Sierra Window and Doors for the remodel of our house.

Pat and Julie Baginski

From the initial consultation to complete job Sierra Window and Doors handled our Front Entry Door project professionally. Mark is very knowledgeable about the products they sell and we got exactly what we wanted. We would use them again and highly recommend them to anyone. Mark and Katy are great!

Sincerely, The Swansey’s  South Lake Tahoe, CA