Greater Comfort, Higher Standards
Energy-efficient windows and doors aren’t just good for the environment — they’re good for regulating interior temperatures, managing energy spend and meeting efficiency standards.
Kolbe has over 20,000 energy-efficient products designed to meet the requirements of ENERGY STAR® in both Canada and the United States. A wide selection of our products also meet the California Title 24 Building Energy Efficiency Standards and are aligned with the passive house principles of leading organizations like Passive House Institute US (PHIUS). Our glass is created using the latest in low emissivity (Low-E) technologies, further enhancing thermal performance and UV protection in any climate.
All of our energy-efficient windows and doors are shipped with detailed installation instructions on how to properly flash, caulk and seal them for optimal performance — and many of them offer an opportunity for tax credits. Refer to our Manufacturer's Certification Statement to learn more.
Find the Right Energy-Efficient Product Line for You
Ultra Series Windows and Doors
Designed for performance, versatility and durability, energy-efficient Ultra Series windows and doors can be made to mimic traditional installations or complement modern architecture. Available in a wide variety of interior and exterior finishes — including wood trim details and vibrant color options — these beautiful windows can boost the efficiency of any home in any style.
Forgent® Series Windows and Doors
Forgent Series windows and doors are made with proprietary Glastra® material, featuring an advanced ladder design with multiple chambers for exceptional strength and energy efficiency. Designed with compression seals to prevent air leakage and sound penetration, these windows are a great high-performance option for new construction or replacement projects.
VistaLuxe® Collection
Kolbe’s VistaLuxe® Collection embodies both contemporary styles and contemporary performance. The VistaLuxe® WD LINE features extruded aluminum exteriors and warm wood interiors, while the VistaLuxe® AL LINE offers thermally broken, all-aluminum construction. Both are ready to adapt to your local climate demands.
Heritage Series Windows and Doors
If your project involves historical styling, don’t sacrifice energy efficiency along the way. The all-wood Heritage Series reflects Kolbe’s legacy of hand-made craftsmanship while incorporating many of today’s innovative performance options. Capture that historical detail and simultaneously meet or exceed guidelines like those from ENERGY STAR — that’s the potential of the Heritage Series.
See Our Energy-Efficient Solutions in Action
Energy-Efficient Contemporary Home in Dike, Iowa
This remarkable energy-efficient home — built with Kolbe Ultra Series windows and doors — is nearly 70% more efficient than a standard new-construction home.
ACC Rio Grande Campus Renovation Project in Austin, Texas
Replacing over 600 windows, this Texas community college turned to Kolbe's Ultra Series windows to replicate historic detail while achieving LEED® Platinum certification for energy and environmental design.
Traditional-Style New Construction Home in Minneapolis, Minnesota
This traditionally styled, new construction home was designed with Kolbe’s Forgent Series, helping the homeowners achieve modern performance and net-zero energy goals.
Learn More About Energy-Efficient Windows and Doors
What Makes a Window or Door Energy Efficient?
Learn about the energy-saving features that impact the efficiency and performance of windows and doors such as Low-E coatings, panes and gas fills.
How to Educate Your Clients About the Value of Energy-Efficient Windows
Explore eye-opening data and talking points that will help convey long-term benefits to homeowners and decision-makers.
Choosing Energy-Efficient Windows for Historic or Custom Homes
Get tips for preserving architectural integrity and custom visions while meeting — and exceeding — modern energy performance standards.
Inspiration To Get You Started
Dive into Kolbe's gallery of inspiring window and door photos, videos, and custom solutions.
