Thermally Broken Bi-Fold Doors

All glass, no chill. Our thermally broken bi-fold doors let you open up your space year-round, seamlessly connecting indoors and out without compromising comfort.

Estimate Shipping Contact Us
Air 7 thermal break double full arch steel front doors, energy efficient arched exterior steel doors

Shop All Thermally Broken Doors

386 products

2.0 - Cold Weather Single Doors

Thermally Broken Single Doors

143 products

2.0 - Cold Weather Double Doors

Thermally Broken Double Doors

133 products

2.0 - Cold Weather with Side Windows

Thermally Broken Doors with Side Windows

59 products

Modern double flat steel entry door with top transom window

Thermally Broken Doors with Top Windows

27 products

Air 4 modular double door with side windows in sleek black steel construction

Thermally Broken Side Windows

5 products

2.0 - Cold Weather Top Windows

Thermally Broken Top Windows

17 products

Air 4 architectural steel bi-fold door, black thermal break frame and dual pane tempered glass
Air 4 black steel folding door system with expansive glass panels
Air 4 with Thermal Break - Bi-Fold From $19,499.96
Air 4 with Thermal Break - Bi-Fold - color variant: Black
Made to Order
Thermally broken steel bi fold exterior door system
Insulated steel bi fold patio door with thermal barrier
Air 4 with Thermal Break - Bi-Fold From $17,077.57
Made to Order
Air 4 with Thermal Break - Bi-Fold | Customize - color variant: Black
Air 4 with Thermal Break - Bi-Fold | Customize - color variant: Oil Rubbed Bronze
Air 4 with Thermal Break - Bi-Fold | Customize - color variant: Sunset Pink
Air 4 with Thermal Break - Bi-Fold | Customize - color variant: Montecito Mint
Air 4 with Thermal Break - Bi-Fold | Customize - color variant: Angeles Green
Air 4 architectural steel center split bi-fold door with thermal break
Air 4 modern black steel folding system, center split configuration
Air 4 with Thermal Break - Center Split Bi-Fold From $22,608.42
Air 4 with Thermal Break - Center Split Bi-Fold - color variant: Black
Made to Order
Air 4 architectural steel center split bi-fold door with thermal break and dual pane tempered glass
contemporary center opening folding steel door system
Air 4 with Thermal Break - Center Split Bi-Fold From $17,077.57
Made to Order
Air 4 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Black
Air 4 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Oil Rubbed Bronze
Air 4 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Sunset Pink
Air 4 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Montecito Mint
Air 4 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Angeles Green
Made to Order
modern bi fold door with insulated steel frame
exterior folding door with thermal barrier construction
Air 5 with Thermal Break - Bi-Fold From $17,077.57
Made to Order
Air 5 with Thermal Break - Bi-Fold | Customize - color variant: Black
Air 5 with Thermal Break - Bi-Fold | Customize - color variant: Oil Rubbed Bronze
Air 5 with Thermal Break - Bi-Fold | Customize - color variant: Sunset Pink
Air 5 with Thermal Break - Bi-Fold | Customize - color variant: Montecito Mint
Air 5 with Thermal Break - Bi-Fold | Customize - color variant: Angeles Green
Made to Order
center split bifold steel doors with thermal break for exterior openings
folding steel patio doors with insulated thermal barrier construction
Air 5 with Thermal Break - Center Split Bi-Fold From $17,077.57
Made to Order
Air 5 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Black
Air 5 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Oil Rubbed Bronze
Air 5 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Sunset Pink
Air 5 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Montecito Mint
Air 5 with Thermal Break - Center Split Bi-Fold | Customize - color variant: Angeles Green
Made to Order
Thermally broken steel bifold door system with insulated glass and contemporary frame design
Architectural bifold steel doors with thermal barrier and divided lite panels
Air Lite with Thermal Break - Bi-Fold From $17,077.57
Made to Order
Air Lite with Thermal Break - Bi-Fold | Customize - color variant: Black
Air Lite with Thermal Break - Bi-Fold | Customize - color variant: Oil Rubbed Bronze
Air Lite with Thermal Break - Bi-Fold | Customize - color variant: Sunset Pink
Air Lite with Thermal Break - Bi-Fold | Customize - color variant: Montecito Mint
Air Lite with Thermal Break - Bi-Fold | Customize - color variant: Angeles Green
Made to Order
Center split bi-fold steel door with thermal break and dual pane glass.
Center split insulated steel folding door with slim frames.
Air Lite with Thermal Break - Center Split Bi-Fold From $17,077.57
Made to Order
Air Lite with Thermal Break - Center Split Bi-Fold | Customize - color variant: Black
Air Lite with Thermal Break - Center Split Bi-Fold | Customize - color variant: Oil Rubbed Bronze
Air Lite with Thermal Break - Center Split Bi-Fold | Customize - color variant: Sunset Pink
Air Lite with Thermal Break - Center Split Bi-Fold | Customize - color variant: Montecito Mint
Air Lite with Thermal Break - Center Split Bi-Fold | Customize - color variant: Angeles Green

Bi-Fold Doors, Reengineered for Real Winters

When floor-to-ceiling glass is part of the vision, insulation has to be built in. Our cold-weather bi-fold doors feature a hidden thermal break: a non-conductive barrier within the steel that prevents cold transfer, condensation, and energy loss, even when temps drop below freezing.