Explores the growing importance of green building certifications, such as LEED, WELL, and ENERGY STAR, in the construction and retrofitting industries. It highlights the value proposition of these certifications for building owners, including increased property value, reduced operating costs, and enhanced marketability. The text also details how contractors can leverage these certifications by using green technologies and partnering with certification experts. Specific examples of successful retrofit projects are provided to illustrate the tangible benefits of certification. Finally, the text emphasizes the crucial role contractors play in driving the shift toward a more sustainable built environment.