Lincoln Windows & Patio Doors

Environmental Commitment

Testing & Certification

At Lincoln, going green goes way beyond a simple mission statement and a long-term agenda. It fits directly into our corporate philosophy of quality and performance combined with lean manufacturing efficiencies. Being proactive in regards to energy conservation, resource management and recycling are all key in how we approach our impact on the environment. As a community leader, we know that benefits made by stressing environmental stewardship will be reaped by future generations of Lincoln employees and their families. It’s an obligation that we take very seriously and we are proud to help control our environmental impact locally, while helping homeowners nationally through their use of our high performing windows and patio doors.

Many of our products carry certification by the National Fenestration Rating Council (NFRC). In addition, Lincoln is an ENERGY STAR Partner. One portion of a products certification is derived from computerized simulation, which computes the thermal value of the product. Another is physical testing to establish air and water infiltration and structural performance. We strive for the best in our windows and doors.

Energy Star

Lincoln Wood Products, Inc. is proud to be a Partner with ENERGY STAR®

ENERGY STAR is a voluntary partnership between the U.S. Department of Energy, the U.S. Environmental Protection Agency and the fenestration industry. It is designed to assist consumers in the recognition of energy efficient products and promote the environmental and economic benefits of these products with the ENERGY STAR label and other program activities. Find additional information regarding the ENERGY STAR program and available products by visiting

Lincoln's ENERGY STAR information.



NFRC (The National Fenestration Rating Council) is a non-profit organization that administers the only uniform, independent rating and labeling system for the energy performance of windows, doors, skylights, and attachment products.  Additional information regarding the NFRC can be found at

Lincoln's NFRC information.


Air, Water & Structural Testing

The Lincoln family of products is certified by an independent source. By sending our products to be verified by another lab, Lincoln customers are assured of weather tight and structurally sound windows and patio doors.

The reported data includes size of window tested, air infiltration, water test pressure and structural test pressure. We also indicate our performance grade (DP Rating).

Lincoln’s Air, Water and Structural test data.